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Colorado

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Colorado — Tax & Mortgage Foreclosure

Legal information, not legal advice. Verify against the cited primary sources before acting. Last verified: 2026-06-01.

Colorado is a tax-lien-certificate state. County treasurers auction a certificate of purchase (CP) on delinquent parcels each November; the CP holder earns statutory interest (currently 9 percentage points over the September 1 federal discount rate) and, after a 3-year redemption period, may apply for a treasurer’s deed. HB24-1056 (effective July 1, 2024) rebuilt the deed end of that process: a CP holder no longer simply gets a deed for the tax debt. Instead the treasurer must run a public auction of a certificate of option for treasurer’s deed under a brand-new Article 11.5 of Title 39, and any overbid (surplus) flows to junior lienors in recording priority and then to the former owner — Colorado’s direct legislative response to tyler-v-hennepin-county (2023). Mortgage foreclosure is non-judicial through the county public trustee (with a court “Rule 120” order), with no post-sale redemption for the homeowner (junior lienors only) and a fair-value deficiency rule.

0. Identity & Classification

  • Recording unit: county (count: 64).
  • Tax sale type: tax lien certificate (certificate of purchase); a treasurer’s deed issues only later, and post-HB24-1056 only after a public auction of a certificate of option for treasurer’s deed (C.R.S. § 39-11.5-115). [Source: leg.colorado.gov HB24-1056 enrolled text]
  • Tax foreclosure process: administrative — the county treasurer conducts the lien sale (Title 39, Art. 11), redemption (Art. 12), and the new deed public-auction process (Art. 11.5); no court action is required to issue the deed, though defects are challenged in district court. [Source: HB24-1056; FindLaw § 39-11-115]
  • Mortgage foreclosure process: non-judicial via the county public trustee, but a court Rule 120 order authorizing sale is required (C.R.S. Title 38, Art. 38). [Source: alllaw.com/Nolo CO foreclosure]
  • Selling authority: county treasurer (tax lien sale, redemption, treasurer’s-deed public auction); public trustee (deed-of-trust foreclosure sale).
  • Statutory home: Title 39, Art. 11 (Sale of Tax Liens), Art. 11.5 (Treasurer’s Deeds — public auction, added by HB24-1056), Art. 12 (Redemption) — https://codes.findlaw.com/co/title-39-taxation/co-rev-st-sect-39-11-115/ ; Title 38, Art. 38 (Foreclosure Sales) — https://www.alllaw.com/articles/nolo/foreclosure/laws-in-colorado.html
  • Tyler v. Hennepin compliance: reformed_post_Tyler — before HB24-1056, a treasurer’s deed transferred the whole parcel to the CP holder for the tax debt and any value beyond the debt was lost to the former owner, the practice Tyler held an unconstitutional taking. HB24-1056 (eff. July 1, 2024) added Article 11.5 so the deed is sold at public auction and any overbid above the minimum bid is paid down a priority waterfall to junior lienors and then to the property owner (C.R.S. § 39-11.5-109(1)). [Source: HB24-1056 enrolled text; Colorado Lawyer “Keeping the Surplus”; Rio Grande County FAQ]

1. Tax Sale Mechanics

  • What is sold: lien certificate (certificate of purchase, “CP”).
  • Bidding method: premium bid (“bonus bid”). The lien is struck to the bidder paying the largest amount in excess of the taxes, interest, advertising, and fees due (C.R.S. § 39-11-115). The premium does not draw interest, is not returned on redemption, and is credited to the county general fund. [Source: FindLaw § 39-11-115; El Paso County Treasurer]
  • Interest / penalty: redemption interest is set annually by the state Bank Commissioner at 9 percentage points above the September 1 federal discount rate, rounded, effective October 1 (C.R.S. § 39-12-103(3)). For 2025 purchases this equaled 14% per annum. [Source: FindLaw/Justia § 39-12-103; El Paso County Treasurer]
  • Minimum bid composition (lien sale): delinquent taxes + delinquent interest
    • advertising + statutory fees (C.R.S. § 39-11-115). [Source: FindLaw § 39-11-115]
  • Sale frequency: annual.
  • Typical month: November. [Source: Garfield County, Eagle County treasurer pages]
  • Venue: both, predominantly online.
  • Platform vendors: RealAuction is used by many counties (e.g., El Paso, Garfield, Eagle). [Source: El Paso County Treasurer; Garfield County]
  • Registration / deposit: bidder registration via the online platform before the sale; deposit terms set per county. (exact deposit % per county — needs_verification.)
  • Subsequent taxes (“subs”): the CP holder is notified (counties report July/August notices) of later delinquent taxes and may pay and endorse them onto the existing certificate; subs earn interest at the same rate as the original CP. [Source: Garfield County treasurer “tax lien sale”]

2. Right of Redemption → see right-of-redemption

  • Pre-sale right: the owner may pay the delinquent taxes any time before the lien is sold, avoiding the sale. [Source: Title 39 Art. 10/11 framework]
  • Post-sale period: redemption may be made at any time before the execution of a treasurer’s deed (C.R.S. § 39-12-103(3)); functionally a 3-year window because the CP holder cannot even apply for a deed/public auction until 3 years after the sale. [Source: Justia/FindLaw § 39-12-103; El Paso County Treasurer (3 years); Routt County]
  • Who may redeem: the owner or the owner’s agent, assignee, or attorney; any person having a legal or equitable claim in the property; and a holder of a tax sale certificate (C.R.S. § 39-12-103). [Source: Justia § 39-12-103 (2016/2022 text)]
  • Amount formula: the taxes, delinquent interest, and costs for which the lien was sold, plus redemption interest from the date of sale at the § 39-12-103(3) rate (9% over discount rate). The premium paid at the lien sale is not repaid (it went to the county general fund). [Source: § 39-12-103; § 39-11-115]
  • Premium to certificate holder: none beyond statutory redemption interest; the CP holder’s upside is the interest rate, not the auction premium.
  • Procedure: redeem through the county treasurer, who holds the funds for the CP holder and issues a certificate of redemption. [Source: § 39-12-103]
  • Extinguishment: redemption is cut off by execution/delivery of the treasurer’s deed following the Article 11.5 public-auction process. [Source: § 39-12-103; HB24-1056 § 39-11.5-115/-116]
  • Special tolling: persons under disability (minors / incompetents) get an extended redemption window under C.R.S. § 39-12-104; federal redemption rights are expressly preserved by HB24-1056 (C.R.S. § 39-11.5-114). [Source: Justia § 39-12-104; HB24-1056 § 39-11.5-114]

3. Surplus / Excess Proceeds → see surplus-funds, third-party-recovery-rules

(A) Tax treasurer’s-deed surplus — new Article 11.5 (HB24-1056, eff. 7/1/2024).

  • Belongs to: priority_waterfall — junior lienors first, then the former property owner.
  • Mechanism: after the 3-year redemption period a “lawful holder” applies for a public auction of a certificate of option for treasurer’s deed (C.R.S. § 39-11.5-102). The treasurer sets a minimum bid = the amount owed the lawful holder plus the treasurer’s Article 11.5 fees and costs, and may only accept bids greater than that sum (C.R.S. § 39-11.5-108(3)(a)). The amount the winning bid exceeds the minimum is the “overbid.” [Source: HB24-1056 §§ 39-11.5-101, -102, -108]
  • Claim waterfall (C.R.S. § 39-11.5-109(1)):
    1. junior lienors in order of recording priority (as of the recording date of the application) who filed a notice of intent to redeem, up to each lien’s unpaid amount + fees/costs;
    2. any remaining overbid is paid to the property owner. A lienholder recorded after the application, or who failed to timely file a notice of intent to redeem, has no claim to the overbid. [Source: HB24-1056 § 39-11.5-109]
  • Filing venue: the county treasurer’s office (claims and notices of intent to redeem). [Source: HB24-1056 §§ 39-11.5-109, -111, -113]
  • Claim deadline: the treasurer mails the owner an overbid notice within 30 days of the auction and holds unclaimed overbid in escrow for 6 months from the auction date; thereafter it is unclaimed property transferred to the State Treasurer (Administrator) under the Revised Uniform Unclaimed Property Act (Title 38, Art. 13) (C.R.S. § 39-11.5-109(2)–(3)). [Source: HB24-1056 § 39-11.5-109]
  • Escheat: funds unclaimed at 6 months go to the Colorado State Treasurer’s unclaimed-property program (not a hard escheat — reclaimable under the Unclaimed Property Act). [Source: HB24-1056 § 39-11.5-109(3)(b); Title 38 Art. 13]
  • Documentation required: proof of ownership / interest; lienors must file a notice of intent to redeem with supporting lien documentation (§§ 39-11.5-111, -113). [Source: HB24-1056]
  • Third-party recovery (tax-surplus finders):
    • fee_cap_pct: none allowed during the treasurer’s custody — an agreement to pay compensation to recover the owner’s overbid from the treasurer is NOT enforceable (C.R.S. § 39-11.5-109(2)(c)).
    • licensing_required: n/a — recovery agreements are simply void/unenforceable while the treasurer holds the funds.
    • assignment_of_claim_allowed: the statute targets compensation agreements; it does not on its face bar assignment, but a finder cannot enforce a fee. (assignability of the bare claim — needs_verification.)
    • cooling_off / disclosure: n/a in the treasurer-custody window (agreements void).
    • prohibited_practices: inducing or attempting to induce another person to enter such a recovery agreement is a Class 2 misdemeanor (§ 39-11.5-109(2)(c)).
    • citation: C.R.S. § 39-11.5-109(2)(c). [Source: HB24-1056 enrolled text]
  • Notice to former owner required? Yes — website posting + mailed notice to the owner’s best/known address within 30 days, with reasonable efforts to locate a current address if the overbid is ≥ $25 (§ 39-11.5-109(2)). [Source: HB24-1056]

(B) Mortgage / deed-of-trust foreclosure overbid — C.R.S. § 38-38-111.

  • Distribution: after a public-trustee sale, overbid is applied first to any deficiency owed the foreclosing lender, then to junior lienors who filed a notice of intent to redeem (to their lien amount), then the remainder to the former owner/grantor. [Source: Arapahoe County Public Trustee overbid page]
  • Claim deadline: the public trustee holds unclaimed overbid in escrow for 6 months from the sale, then transfers it to the State Treasurer under the Revised Uniform Unclaimed Property Act. [Source: § 38-38-111; Arapahoe County]
  • Third-party recovery (foreclosure-overbid finders) — § 38-38-111:
    • An agreement to pay compensation to recover the owner’s overbid from the public trustee is not enforceable, and inducing such an agreement is a misdemeanor (up to 6 months jail and/or up to $10,000 fine).
    • A finder’s-fee agreement is void during the public trustee’s custody of the funds and during the first 2 years of the State Treasurer’s custody.
    • After those windows, finder’s fees are capped at 20% (roughly 2½–3 years after sale) and 30% for amounts held by the State Treasurer 3 years or more; recovery agreements must be written, signed, and describe the property, sale date, and services. [Source: § 38-38-111 (HB16-1090); Arapahoe County Public Trustee]
  • Notice to former owner required? Yes — the public trustee notifies the borrower that funds unclaimed within 6 months go to the State Treasurer. [Source: § 38-38-111; Arapahoe County]

▸ For Investors / Operators — Post-HB24-1056, a Colorado treasurer’s deed issues only after a public auction of a certificate of option for treasurer’s deed (Article 11.5), and any overbid above the minimum bid flows down a priority waterfall to junior lienors who filed a notice of intent to redeem, then to the former owner (C.R.S. § 39-11.5-109). Before committing capital, weigh the redemption risk (§2/2b — redemption runs until the deed executes, functionally a 3-year window, with disability tolling under § 39-12-104 and preserved federal rights under § 39-11.5-114), the path to marketable/insurable title (§5b — quiet title in district court; HB24-1056 changed the deed-issuance mechanics), and which liens survive (§7b — the IRS § 7425 120-day redemption and any senior/governmental claims). Note the premium “bonus bid” at the lien sale earns no interest and is not returned on redemption (§ 39-11-115).

▸ For Former Owners — When the Article 11.5 public auction produces an overbid above the minimum bid, the remainder after junior lienors belongs to the former property owner (C.R.S. § 39-11.5-109(1)). The treasurer mails an overbid notice within 30 days and holds the funds 6 months before transferring them to the State Treasurer’s unclaimed-property program. Critically, an agreement to pay a recovery agent to recover the overbid from the treasurer is unenforceable, and inducing such an agreement is a Class 2 misdemeanor (§ 39-11.5-109(2)(c)) — the owner claims the overbid directly at the county treasurer’s office at no cost.

4. Mortgage Foreclosure

  • Process: non-judicial through the county public trustee, with a required court Rule 120 order authorizing the sale (C.R.C.P. 120; Title 38, Art. 38). [Source: alllaw.com/Nolo]
  • Timeline: lender records a Notice of Election and Demand with the public trustee → trustee sets a sale and publishes; a Rule 120 “reasonable probability of default” hearing is held before sale. (precise statutory day counts for notice of sale — needs_verification.) [Source: Nolo CO foreclosure]
  • Reinstatement / cure right: yes — the borrower (and certain junior lienors) may file a notice of intent to cure ≥ 15 calendar days before the sale and pay the cure amount by noon the day before sale (C.R.S. § 38-38-104). [Source: Nolo CO foreclosure]
  • Redemption after sale: none for the homeowner. Only junior lienors who filed a notice of intent to redeem may redeem after the sale (C.R.S. § 38-38-302), generally within statutory day-windows after the sale. (Colorado abolished the owner’s post-sale redemption in the 2006–2008 foreclosure reforms.) Exception: an HOA foreclosure leaves the owner a 180-day redemption. [Source: Nolo CO foreclosure (§ 38-38-302; HOA 180 days)]
  • Deficiency judgment: allowed — the lender may sue for a deficiency (statute of limitations ~6 years). The foreclosing holder must bid at least its good-faith estimate of fair market value (net of senior liens, taxes, and costs); a low bid does not void the sale but is a defense that reduces any deficiency (C.R.S. § 38-38-106). [Source: Justia/Nolo § 38-38-106]
  • Surplus distribution: per C.R.S. § 38-38-111 (Module 3B).
  • Sale officer: public trustee (county official appointed by the Governor in most counties).

5. Sale Procedure Playbooks

  • Treasurer tax-lien sale → treasurer’s-deed public auction — ordered steps → see treasurer-sale
    1. Treasurer publishes the delinquent list and holds the November lien sale (online via RealAuction in many counties).
    2. Premium bid — CP struck to the bidder paying the largest premium; premium credited to the county general fund (§ 39-11-115).
    3. CP holder may endorse subsequent taxes (“subs”) at the CP rate.
    4. Owner may redeem through the treasurer any time before the deed issues, paying tax + costs + 9%-over-discount interest (§ 39-12-103).
    5. After 3 years, a “lawful holder” files an Application for Public Auction of a Certificate of Option for Treasurer’s Deed (§ 39-11.5-102); treasurer reviews and records it (§ 39-11.5-103).
    6. Treasurer mails/posts/publishes notice to interested parties (§ 39-11.5-104) and holds the public auction within ~125 days of recording (§ 39-11.5-105).
    7. Minimum bid = amount owed lawful holder + treasurer’s costs; only higher bids accepted (§ 39-11.5-108). Overbid paid to junior lienors then the owner (§ 39-11.5-109).
    8. Treasurer issues the certificate of option to the winner, who presents it for the treasurer’s deed (§§ 39-11.5-115, -116). [Source: HB24-1056 enrolled text; El Paso/Rio Grande County FAQs]
  • Public-trustee (mortgage) sale — ordered steps → see sheriff-sale
    1. Default → lender records Notice of Election and Demand; public trustee sets sale, publishes, mails notices.
    2. Lender obtains Rule 120 order (reasonable probability of default).
    3. Borrower may file notice of intent to cure ≥ 15 days before sale; cure by noon the day before (§ 38-38-104).
    4. Public trustee auctions; lender must bid ≥ fair value (§ 38-38-106).
    5. No owner redemption; junior lienors may redeem (§ 38-38-302).
    6. Overbid distributed per § 38-38-111; unclaimed → State Treasurer at 6 mo. [Source: Nolo CO foreclosure; § 38-38-104, -106, -111, -302]
  • Notice requirements: treasurer’s-deed notice mailed/posted/published per §§ 39-11.5-104 and historically § 39-11-128 (3–5 months pre-deed certified-mail notice to owners/occupants/recorded interests on diligent inquiry); public-trustee notice published + mailed per Title 38, Art. 38. [Source: § 39-11-128; HB24-1056]
  • Upset bid / confirmation: none — no judicial confirmation of the treasurer’s public auction or the public-trustee sale; the public trustee issues a confirmation deed after the redemption period.
  • Payment terms: treasurer’s-deed auction — cash, cashier’s/bank check, or EFT per the treasurer’s bidding rules (§ 39-11.5-108(4)); a non-paying bidder forfeits to the next highest bidder and may be barred up to 5 years (§ 39-11.5-110). [Source: HB24-1056]
  • Deed issued: treasurer’s deed (tax) / public trustee’s confirmation deed (mortgage) — conveyed without warranty.

6. Due Process & Notice → see due-process-notice

  • Standard: notice “reasonably calculated” to reach the owner (mullane-v-central-hanover), actual mailed notice to record interest-holders (mennonite-v-adams), and additional reasonable steps when mail is returned (jones-v-flowers).
  • Colorado application — § 39-11-128 “diligent inquiry”: before a treasurer’s deed, the treasurer must serve notice (personal or certified mail) on persons in possession, the person taxed, and recorded-interest holders, on diligent inquiry, 3–5 months before the deed. A deed issued without diligent inquiry is voidable and may be set aside. [Source: Justia § 39-11-128]
  • Klingsheim v. Cordell (2016 CO 18): the Colorado Supreme Court held a treasurer owes a duty of further diligent inquiry only when the facts known show the taxpayer could not have received the mailed notice (e.g., it was returned undelivered). Where certified mail was sent to the address the owners themselves designated and was not returned (signed for by a same-surname relative nearby), no further inquiry was required and notice satisfied due process. [Source: Justia 14SC931; case-law.vlex]
  • Cordell v. Klingsheim (2018 COA 80): on remand, the Court of Appeals addressed whether due process requires a separate mailed tax-sale notice to each record owner when the owners are spouses at the same address. [Source: CourtListener; FindLaw] (precise post-remand holding on the separate-notice question — needs_verification: opinion text not fully retrieved.)
  • Consequence of defective notice: voidable — the treasurer’s deed may be set aside; not automatically void.
  • Leading cases: klingsheim-v-cordell-2016, cordell-v-klingsheim-2018, tyler-v-hennepin-county, mullane-v-central-hanover, mennonite-v-adams, jones-v-flowers.

7. Title & Marketability

  • Deed warranty level: treasurer’s deed / public-trustee deed convey without warranty (the interest foreclosed only).
  • Marketable immediately? No — treasurer’s-deed grantees typically must quiet title before the parcel is readily insurable/marketable. (insurer practice — needs_verification.)
  • Quiet title required? Practically yes for tax-deed parcels.
  • SOL to challenge the deed: challenges to a treasurer’s deed are limited by C.R.S. § 39-12-101 et seq. and the diligent-inquiry/voidable framework of Klingsheim. (exact statutory limitation period to attack a treasurer’s deed — needs_verification.)
  • Title insurance availability: generally limited until quiet-title for tax-deed parcels; standard for public-trustee deeds after the redemption period.
  • Common defects: defective § 39-11-128 notice / inadequate diligent inquiry, unidentified recorded interests, redemption disputes, and (pre-7/1/2024) the now-cured Tyler surplus-forfeiture problem.

8. Case Law (real, verified)

CaseYearTopicHolding (plain English)Source
klingsheim-v-cordell-2016 (2016 CO 18, 379 P.3d 270, Colo. Sup. Ct.; docket 14SC931)2016due_process / sale_procedureA treasurer owes further diligent inquiry under § 39-11-128 only when facts known show the taxpayer could not have received the mailed notice (e.g., returned mail); certified mail to the owner-designated address that is not returned satisfies due process — the treasurer need not ensure actual receipt.https://law.justia.com/cases/colorado/supreme-court/2016/14sc931.html
cordell-v-klingsheim-2018 (2018 COA 80, 434 P.3d 741, Colo. App.; docket 17CA0233)2018due_process / sale_procedureOn remand, the Court of Appeals addressed whether due process requires a separate mailed tax-sale notice to each record owner who are spouses sharing one address.https://www.courtlistener.com/opinion/4507143/cordell-v-klingsheim/
tyler-v-hennepin-county (598 U.S. 631, U.S. Sup. Ct.)2023surplus / due_processRetaining surplus equity beyond the tax debt is an unconstitutional taking — the decision that drove Colorado’s HB24-1056 Article 11.5 overbid reform.https://cl.cobar.org/features/keeping-the-surplus/

9. Edge Cases (state-specific notes)

  • bankruptcy-automatic-stay — a bankruptcy petition stays the Article 11.5 public auction; HB24-1056 § 39-11.5-106 directs the treasurer to take no action at the scheduled auction and to continue/withdraw it per the bankruptcy rules. [Source: HB24-1056 § 39-11.5-106]
  • federal-tax-lien-redemption — federal redemption rights are expressly preserved by C.R.S. § 39-11.5-114; the IRS retains its 120-day post-sale redemption under 26 U.S.C. § 7425 where a federal lien is junior. [Source: HB24-1056 § 39-11.5-114]
  • heirs-property — co-owners / those with a legal or equitable claim may redeem under § 39-12-103; no partial redemption of less than the whole property is allowed in the Article 11.5 lawful-holder redemption (§ 39-11.5-111(10)). [Source: § 39-12-103; HB24-1056 § 39-11.5-111]
  • hoa-super-priority — an HOA foreclosure leaves the former owner a 180-day redemption (unlike a lender foreclosure, where the owner has none). [Source: Nolo CO foreclosure]
  • minors-and-incompetents-tolling — persons under legal disability get an extended redemption period under C.R.S. § 39-12-104. [Source: Justia § 39-12-104]
  • void-vs-voidable — a treasurer’s deed issued without diligent inquiry is voidable and set aside by a court, not automatically void (Klingsheim). [Source: Justia § 39-11-128; Klingsheim v. Cordell]

10. Operations

  • Where records live: county Treasurer (tax liens, CPs, redemptions, treasurer’s-deed auctions, overbid escrow), county Clerk & Recorder (deeds, deeds of trust, notices), county Public Trustee (foreclosure files, overbid), district court (Rule 120; deed challenges), Colorado State Treasurer (unclaimed property / escheated overbid).
  • Public portals: county treasurer tax-lien sale sites (El Paso: treasurer.elpasoco.com; Garfield: garfieldcountyco.gov; Eagle, Jefferson, Routt); RealAuction county auction sites; treasury.colorado.gov (unclaimed property); coloradojudicial.gov (opinions); leg.colorado.gov (statutes/bills).
  • Typical costs: treasurer’s-deed application fees run into four figures (El Paso County lists $1,300 per certificate); recording and publication fees; public-auction costs added to the minimum bid. [Source: El Paso County Treasurer]
  • Typical timelines: lien sale November; 3-year redemption before deed application; public auction ≤ 125 days after the application is recorded; overbid escrow 6 months then unclaimed property; mortgage cure ≥ 15 days before sale; no owner post-sale redemption (HOA = 180 days).
  • Key agencies: County Treasurers, County Public Trustees, County Clerk & Recorders, Colorado State Treasurer (Unclaimed Property), Colorado district courts.
  • Useful forms: certificate of purchase; certificate of redemption; Application for Public Auction of a Certificate of Option for Treasurer’s Deed (§ 39-11.5-102); notice of intent to redeem (§§ 39-11.5-111, -113); notice of intent to cure (§ 38-38-104); notice of intent to redeem for junior lienors (§ 38-38-302).

2b. Redemption Advanced

Assignability of the Redemption Right

  • Assignable? Yes. C.R.S. § 39-12-103 explicitly permits redemption by “the owner thereof or his agent, assignee, or attorney, or by any person having a legal or equitable claim therein.” No restriction to heirs or mortgagees only — the language is broad and unrestricted. [Source: Justia § 39-12-103 (2020/2022 text via search snippet; confirmed from multiple county FAQ pages)]
  • Restrictions: None stated in the statute beyond the payer being the owner, agent, assignee, attorney, or a person with a legal/equitable claim. A formal deed of assignment is not required by the statute, though one is prudent. (Whether a bare assignment of the redemption right by a judgment debtor/insolvent owner could be challenged under CUFTA — needs_verification.)
  • Mechanism: Redemption is effected through payment to the county treasurer; the treasurer issues a certificate of redemption. An assignee simply presents proof of assignment to the treasurer. [Source: § 39-12-103; county treasurer practice]
  • When the owner holds a partial interest: The treasurer will issue a proportional certificate of redemption for one co-owner’s severed interest upon application and payment of the proportional share (§ 39-12-103(2)). [Source: § 39-12-103 search snippet]

Equitable Redemption vs. Statutory Redemption

  • Distinct? Colorado’s statutory scheme does not separately codify “equitable redemption” as a distinct doctrine. The statutory right under § 39-12-103 — which runs until the deed issues — effectively subsumes what other states call pre-deed equitable redemption, since no deed can issue until the Article 11.5 public auction is complete.
  • Pre-sale only? The right to pay the taxes before the lien sale is entirely pre-sale; the statutory post-sale redemption runs all the way through the date of deed execution. (Whether a Colorado district court would recognize an independent equitable-redemption claim beyond the statutory window — needs_verification; no Colorado case directly on point found.)
  • Practical note: Because the 3-year redemption + Article 11.5 process gives owners a long practical window, pure equitable-redemption claims rarely arise. [Source: framework analysis of §§ 39-11.5, 39-12-103]

Installment Redemption

  • Permitted? The statute does not mention installment redemption; redemption is a single lump-sum payment to the treasurer of taxes + costs + interest. (No installment-redemption provision found — needs_verification.)

Assignment of Tax Certificate / Certificate of Purchase Mid-Period

  • Permitted? Yes — expressly. C.R.S. § 39-11-118 provides: “Such certificate of purchase shall be assignable by endorsement, and an assignment thereof, when entered upon the record of sales in the offices of the county clerk and recorder and the treasurer, shall vest in the assignee or his legal representative all the right and title of the original purchaser.” [Source: CCTPTA Colorado Treasurers Manual — Art. 11 (fetched 2026-06-02)]
  • Restrictions: A county, city, or town holding an “unassigned” certificate (struck off to the county for no bid) may sell and assign it to any private purchaser upon payment of the full tax + accrued interest/costs + assignment fee. If the certificate is 15 years old (or will reach 15 years within one year), the assignee must institute deed proceedings within one year of the assignment or the lien lapses. [Source: CCTPTA Art. 11; § 39-11-148 (Justia 2022 snippet)]
  • Post-HB24-1056: Under the new Article 11.5, the assignee becomes the “lawful holder” who may apply for the public auction of a certificate of option for treasurer’s deed (§ 39-11.5-102). [Source: HB24-1056 enrolled text]

3b. Surplus Advanced

Claim Assignability

  • Full assignment permitted? The statute governing the tax-surplus (Article 11.5) targets compensation agreements and recovery agents, not bare assignments of the surplus claim. C.R.S. § 39-11.5-109(2)(c) makes it a Class 2 misdemeanor to “induce or attempt to induce another person to enter into an agreement to pay compensation for the recovery of” the overbid while the treasurer holds it. A bare assignment of the overbid claim itself (as opposed to a fee-for-services agreement) is not expressly prohibited by the text.
  • Practical status: Because the statute voids compensation agreements while the treasurer holds the funds, any arrangement that is characterized as “fee for recovery” is unenforceable. A clean assignment of the full claim for fixed consideration may be legally distinct — but this distinction has not been litigated in a published Colorado appellate decision as of the research date. (needs_verification.)
  • Fee-cap applies to assignments? The § 39-11.5-109(2)(c) prohibition covers the treasurer-custody window entirely; after funds transfer to the State Treasurer (unclaimed property), the § 38-13-1304 finder-fee cap under the Revised Uniform Unclaimed Property Act applies. (Exact cap % under § 38-13-1304 — needs_verification; the statute is cited in the unclaimed property regulatory scheme but the text was not retrieved verbatim.)
  • Mortgage-foreclosure overbid: C.R.S. § 38-38-111 explicitly governs finder’s fees: void during the public trustee’s custody and during the first 2 years of State Treasurer custody; capped at 20% for overbid held 2.5–3 years by the State Treasurer; capped at 30% for overbid held 3 or more years by the State Treasurer. Agreements must be written, signed, and describe the property, sale date, and services. [Source: § 38-38-111; Arapahoe County Public Trustee FAQ (fetched 2026-06-01)]
  • Citation: C.R.S. §§ 39-11.5-109(2)(c); 38-38-111 (HB16-1090).

Statute of Limitations on Surplus Claims

  • Tax overbid (Article 11.5): No separate limitation period is stated in § 39-11.5-109 beyond the 6-month escrow window at the treasurer. After 6 months, unclaimed overbid transfers to the Colorado State Treasurer as unclaimed property under the Revised Uniform Unclaimed Property Act (C.R.S. Title 38, Art. 13). Funds in the State Treasurer’s custody are reclaimable indefinitely — Colorado has no absolute forfeiture period for unclaimed property; claims are processed through the Great Colorado Payback program (treasury.colorado.gov). [Source: HB24-1056 § 39-11.5-109(2)–(3)(b); Colorado State Treasurer unclaimed property portal]
  • Trigger date (escrow window): date of the Article 11.5 public auction.
  • Mortgage-foreclosure overbid: Same 6-month window at the public trustee, then unclaimed property (same Great Colorado Payback program). [Source: § 38-38-111; Arapahoe County]
  • Practical limitation: Once in unclaimed property, the effective deadline is the RUUPA dormancy period; Colorado’s unclaimed property office processes claims without a statutory cut-off for owners. (Statutory dormancy period for real-estate-sale proceeds under Colorado RUUPA — needs_verification.)

Competing Claimant Procedure

  • Filing-race? No — priority is statutory, not filing-race. For tax overbid, priority follows order of recording of the junior liens as of the date the lawful holder records the application for public auction (§ 39-11.5-109(1)). A lienholder not recorded by that date, or who failed to timely file a notice of intent to redeem, has no claim to the overbid. [Source: HB24-1056 § 39-11.5-109]
  • Interpleader: Not required at the treasurer level because the priority waterfall is statutorily defined. If competing claimants dispute their entitlement (e.g., two parties both claiming to be the “former owner”), the dispute would be resolved by district court — the standard venue for title/money disputes. (No specific interpleader procedure codified for Article 11.5 overbid — needs_verification of any formal interpleader rule.)
  • Mortgage-foreclosure overbid: Public trustee pays in accordance with § 38-38-111 priority waterfall; disputes go to district court.

Deceased Owner Procedure

  • Probate required first? The State Treasurer’s unclaimed property office handles estate claims by petition to the probate court in the county where the estate was (or will be) probated; the probate court determines rightful heirs, and the personal representative has standing to claim. [Source: Colorado Unclaimed Property Finder Information Page (fetched 2026-06-02); search snippet]
  • Personal representative standing: Yes — the estate’s personal representative can claim overbid funds on behalf of the estate.
  • Direct-heir claim: For small estates, Colorado’s affidavit procedure for small-estate administration (C.R.S. § 15-12-1201) may allow a direct heir to claim without full probate, but this depends on the total estate value and the county’s practice. (Direct heir claim without probate for Art. 11.5 overbid — needs_verification.)
  • Practical note: If overbid funds have already transferred to the State Treasurer’s unclaimed property program, the estate representative files a claim with the Great Colorado Payback portal and will be directed to petition probate court if the amount is material.

Fraudulent Conveyance Exposure

  • Assignment voidable by creditors? Yes. Colorado’s Colorado Uniform Fraudulent Transfer Act / CUFTA (C.R.S. Title 38, Art. 8), as updated by SB25-133 (signed April 7, 2025; effective August 6, 2025, now styled the Colorado Uniform Voidable Conveyance Act / CUVCA), provides that a transfer made with actual intent to hinder, delay, or defraud a creditor, or without receiving reasonably equivalent value while the debtor is insolvent, is voidable by the creditor. [Source: Keating Wagner 2025 Update (fetched 2026-06-02); Justia § 38-8-105 (2024)]
  • Applicable statute: C.R.S. §§ 38-8-105 and 38-8-106 (CUFTA/CUVCA). SOL: 4 years from the transfer (updated by SB25-133 from prior 1-year window for § 38-8-106(2) claims).
  • Notes: An owner who assigns a surplus claim to a recovery agent for nominal consideration while insolvent could face a creditor challenge. The broad CUFTA creditor definition (any claim, contingent or matured) means even potential creditors could challenge a pre-tax-sale assignment if the owner receives less than reasonably equivalent value.

Surplus Claimant Notice

  • Tax overbid: Treasurer must mail notice to the owner’s best/known address within 30 days of the auction; if the overbid is ≥ $25 and the mailed address is not a current address, the treasurer must make reasonable efforts to locate a current address and re-mail. Notice also posted on the treasurer’s website. [Source: HB24-1056 § 39-11.5-109(2)]
  • Mortgage overbid: Public trustee notifies the borrower after sale that unclaimed funds will transfer at 6 months. [Source: § 38-38-111; Arapahoe County]

5b. Title Advanced

Quiet Title Action

  • When required? Optional but practically required to achieve title insurability or financing before the 9-year § 39-12-104 disability-redemption window expires. After that window, title companies are more willing to insure without a quiet title, though the action remains best practice for any parcel where notice defects are suspected. [Source: Frascona.com quiet-title posts (fetched 2026-06-02); Tax Title Services Colorado overview]
  • Action type: Judicial — filed in district court under C.R.S. § 39-11-133 (“Suit to quiet title”), which expressly authorizes the treasurer’s-deed grantee or successors to bring a quiet-title action. [Source: Justia § 39-11-133 (2022 text via search snippet, confirmed from multiple sources)]
  • Court with jurisdiction: Colorado district court for the county where the property is located (Colorado Constitution, Art. VI; § 39-11-133).
  • Typical timeline: 6–12+ months for an uncontested case (pre-complaint document collection + service + default/decree phases); contested cases take longer. [Source: Frascona.com quiet-title primer (fetched 2026-06-02)]
  • Typical cost range: Simple uncontested quiet title: $2,000–$3,500 in attorney/court/publication fees; rural acreage with multiple defects can exceed $5,000. Additional costs: litigation guarantee, title search, service/publication. [Source: Tax Title Services Colorado; Jones Property Law Colorado QTA]
  • Cures all pre-sale defects? A decree entered under § 39-11-133 clears the title as against persons made parties; it does not automatically cure defects that arise from federal constitutional failures (e.g., Jones v. Flowers notice failures) unless those parties are also joined and served. (Full scope of defects cured — needs_verification.)
  • Citation: C.R.S. § 39-11-133. [Source: Justia via search snippet]

Deed Seasoning

  • Insurers require seasoning? Yes — title insurers generally will not underwrite a Colorado treasurer’s-deed parcel without either (a) a quiet-title decree or (b) waiting for the 9-year post-deed disability-redemption period to run. Most insurers take the position that the deed alone — without quiet title — is uninsurable for retail sale or financing. [Source: Frascona.com; Tax Title Services Colorado (fetched 2026-06-02)]
  • Typical years: 9 years (statutory disability window) if no quiet title; effective seasoning is 0 if quiet title decree is obtained.
  • Rationale: The 9-year disability-redemption right under § 39-12-104 means a person under legal disability could theoretically re-open the chain of title. Quiet title removes that risk by obtaining a decree that binds all parties joined.

Title Insurance

  • Immediate availability? No — not for financing or retail sale. Insurers require a quiet-title decree or use a specialty certification service (e.g., Tax Title Services) before issuing. [Source: Tax Title Services CO; Frascona.com]
  • Conditions for immediate coverage: Some specialty underwriters may write limited coverage with a large exception schedule, but this is non-standard for Colorado treasurer’s deeds.
  • Insurers known to write: Land Title Guarantee Company (LTGC) and Fidelity/First American after quiet title; Tax Title Services provides a certification that some underwriters accept. [Source: LTGC resources (fetched 2026-06-01); Tax Title Services CO]
  • Quitclaim/special warranty only? A treasurer’s deed conveys without warranty by statute; the grantee’s title policy would be issued on the grantee’s interest only, subject to exceptions.

Marketable Title Act

  • Exists? Yes. C.R.S. § 38-41-111 et seq. establishes a 7-year curative provision: once a recorded conveyance document (including a treasurer’s deed) has been on record for seven years, no action may be brought to challenge its validity based on defects existing at the time of recording, provided the challenger’s claim is not a forged instrument or an action filed within the 7-year window. [Source: lpdirect.net CRS § 38-41-111 (fetched 2026-06-02)]
  • Lookback: 7 years from the date of recording.
  • Interaction with 9-year disability period: The § 39-12-104 disability window is 9 years; § 38-41-111’s 7-year bar applies to general title challenges but persons under legal disability who have an affirmative redemption right (not merely a title challenge) may retain their right to the end of the 9-year window. (Precise interaction between § 38-41-111 and § 39-12-104 — needs_verification.)
  • Statute: C.R.S. § 38-41-111. [Source: lpdirect.net (fetched 2026-06-02)]

Judicial Confirmation

  • Required before deed issues? No — Colorado does not require judicial confirmation of the treasurer’s deed or the Article 11.5 auction result before the deed issues. The process is purely administrative: the treasurer records the application, conducts the public auction, and issues the certificate of option; the winner presents the certificate and the treasurer issues the deed. [Source: HB24-1056 §§ 39-11.5-108, -115, -116]
  • Tribunal: N/A for normal issuance. District court is the venue for post-deed challenges (§ 39-11-133 quiet title).
  • Timeline: N/A (no pre-deed court step).

Chain-of-Title Cure Depth

  • Depth: A quiet-title decree under § 39-11-133 cures title as against all parties joined in the action; the deed itself (as a treasurer’s conveyance) purports to convey a new paramount title extinguishing junior liens. Pre-lien defects in the chain title (e.g., old breaks in the chain before the tax lien) are not automatically cured by the treasurer’s deed — the quiet-title action must reach back to cure those independently. (Full depth of pre-lien cure — needs_verification.)

5c. TRO & Injunctive Relief

Recognized Grounds

A party seeking to halt a Colorado tax or mortgage foreclosure sale may obtain a TRO or preliminary injunction on any of the following grounds, listed in decreasing frequency:

  1. Constitutional due-process / notice defect — inadequate or defective § 39-11-128 notice (diligent-inquiry failure), returned mail not followed up, failure to serve recorded-interest holders.
  2. Payment dispute — assertion that taxes were paid or the redemption amount is incorrect.
  3. Bankruptcy automatic stay — 11 U.S.C. § 362 immediately stays all state-court foreclosure proceedings on the debtor’s property (self-executing, no court order needed, though confirmation is often sought).
  4. SCRA — active-duty military homeowners may seek a TRO if the Rule 120 hearing or public-trustee sale proceeded without SCRA compliance (50 U.S.C. § 3953).
  5. Homestead / constitutional claims — challenges grounded in the Colorado Homestead Exemption (§ 38-41-201) or the Fifth Amendment taking claim (post-Tyler).
  6. Rule 120 defect — for mortgage foreclosures, a borrower may assert in the Rule 120 proceeding itself that the lender has not shown a reasonable probability of default; the Rule 120 order is itself a form of court authorization that can be contested. [Source: Nolo CO foreclosure; C.R.C.P. 120 (confirmed via search)]
  • TRO (C.R.C.P. 65(e)): The moving party must demonstrate by affidavit, verified motion, or testimony: (1) immediate and irreparable injury, loss, or damage will result if the order is not granted; (2) efforts made to give notice or reasons why notice should not be required. The TRO expires after 14 days (unless extended for good cause or consented to). [Source: JD Porter Law — CRCP 65 analysis (fetched 2026-06-02)]
  • Preliminary injunction (6-element Gitlitz test): (1) reasonable probability of success on the merits; (2) danger of real, immediate, and irreparable injury; (3) no plain, speedy, and adequate remedy at law; (4) no harm to public interest; (5) balance of equities favors injunction; (6) will preserve the status quo. [Source: Gitlitz v. Bellock, 171 P.3d 1274 (Colo. App. 2007), cited in JD Porter Law article (fetched 2026-06-02)]
  • Foreclosure context: Colorado courts recognize that losing one’s home constitutes irreparable harm, easing the irreparable-injury prong for homeowners.

Court with Jurisdiction

Colorado district court for the county where the property is located. C.R.C.P. 65 governs both TROs and preliminary injunctions. For tax sales the challenge would typically name the county treasurer; for mortgage foreclosures the Rule 120 proceeding is itself in district court, so injunctive relief is sought in the same action. [Source: C.R.C.P. 65; C.R.C.P. 120]

Bond Required?

Discretionary. C.R.C.P. 65(c) requires the movant to give security in an amount the court deems proper, unless the court waives the requirement. For homeowners facing foreclosure, courts may waive or reduce the bond if the homeowner has limited means and the lender’s loss from a brief delay is minimal. [Source: JD Porter Law (fetched 2026-06-02); general CRCP 65 practice]

Emergency Timeline

A properly filed TRO motion (with supporting affidavit and verified complaint) can be heard within 24–48 hours in most Colorado district courts if the movant demonstrates imminent irreparable harm. Emergency motions filed on the day before a scheduled sale have been acted upon same day. [Source: JD Porter Law; general Colorado district court practice]

Effect on a Completed Sale

  • Tax sale (Article 11.5 public auction): If the sale was not yet completed (gavel not yet fallen, certificate not yet issued), a TRO can halt it. If the auction has already concluded and the certificate issued, the sale is generally treated as complete; the party’s remedy shifts to a post-sale challenge in district court (quiet title, damages, or constitutional taking claim). (No Colorado appellate decision squarely addressing void-vs-voidable where a TRO issues after a tax auction closes — needs_verification.)
  • Mortgage / public-trustee sale: The Rule 120 proceeding provides a pre-sale court check. After the public-trustee sale is completed and the redemption period expires, the sale is final; a TRO issued after the deed is confirmed has no effect on the completed sale. [Source: C.R.C.P. 120; § 38-38-302; Nolo CO foreclosure]

Non-Judicial Foreclosure Notes

Colorado’s public-trustee mortgage foreclosure is quasi-non-judicial but requires a Rule 120 court order. The Rule 120 hearing itself is the primary avenue to contest the sale; a separate TRO action in a different courtroom is procedurally awkward and courts generally prefer consolidation into the Rule 120 proceeding. For the tax sale (Article 11.5), there is no Rule 120 equivalent, so a TRO is the main pre-sale judicial remedy.

7b. Lien Survival & Purchaser Exposure

IRS 120-Day Redemption Right

  • Applies? Yes — and Colorado expressly preserves it. C.R.S. § 39-11.5-114 (added by HB24-1056) states: “Nothing in this article 11.5 affects the right of the United States to redeem property from a sale to enforce a federal tax lien pursuant to 26 U.S.C. § 7425.” 26 U.S.C. § 7425(d) gives the IRS 120 days (or the state redemption period, whichever is longer) to redeem after a sale of property subject to a federal tax lien. [Source: HB24-1056 § 39-11.5-114 (fetched 2026-06-01); 26 U.S.C. § 7425(d)]
  • Procedure: The IRS must receive written notice at least 25 days before the sale (26 U.S.C. § 7425(b)); if notice is not given, the sale does not extinguish the IRS lien. [Source: LII 26 U.S.C. § 7425; IRS IRM 5.12.4 (confirmed via search)]
  • Practical impact: Before bidding at an Article 11.5 public auction, a purchaser should run an IRS/federal tax lien search (PACER + county record) to determine whether the IRS has a lien and whether proper § 7425(b) notice was given. If IRS redemption applies, the purchaser’s investment is at risk for 120 days post-sale.

HOA Super-Priority

  • Super-priority exists? Yes — under C.R.S. § 38-33.3-316(2)(b)(i) (Colorado Common Interest Ownership Act / CCIOA), a condominium or planned-community HOA has a super-priority lien equal to 6 months of common expense assessments that would have come due in the period immediately preceding a foreclosure. This lien is senior to the first deed of trust (mortgage). [Source: Orten Cavanagh HOA law firm website; search confirmed CRS 38-33.3-316; Cherry Creek Title (fetched 2026-06-02)]
  • Cap: 6 months of regular (not accelerated) assessments. Attorney fees, late charges, and interest count against — not in addition to — this 6-month cap (First Atlantic Mortgage, LLC v. Sunstone North Homeowners Association). [Source: Cherry Creek Title (fetched 2026-06-02)]
  • Survives mortgage foreclosure? Yes — the super-priority 6-month lien survives a first-mortgage foreclosure (the buyer at the foreclosure sale takes subject to it). The association’s sub-priority (second-lien) portion is extinguished by the first-lien foreclosure. [Source: First Atlantic Mortgage v. Sunstone North, Colorado Court of Appeals; search snippet]
  • Survives tax sale? Likely extinguished. Colorado case law and secondary sources confirm that a valid treasurer’s deed “conveys a new and paramount title” that generally extinguishes prior liens, including HOA liens. The statutory super-priority under § 38-33.3-316 is explicitly subordinate to governmental tax liens (“governmental liens, assessments or charges, including tax liens, are unaffected by a super lien”). Because the tax lien is senior to the HOA super-priority by statute, the treasurer’s deed likely extinguishes the HOA lien. (An appellate decision directly confirming HOA-lien extinguishment by treasurer’s deed — needs_verification. Practitioner consensus strongly favors extinguishment.)
  • Citation: C.R.S. § 38-33.3-316(2)(b)(i). [Source: search snippet and county law firm analysis]

Environmental / CERCLA Liens

  • CERCLA lien survives tax sale? Federal CERCLA liens (42 U.S.C. § 9607(l)) are a super-priority federal lien and, like IRS liens, are not automatically extinguished by a state tax sale unless the United States is given notice and the applicable federal redemption procedures are followed. If the U.S. EPA has recorded a CERCLA lien and was not properly noticed under 26 U.S.C. § 7425 (which governs federal liens generally), the lien survives the tax sale. [Source: Environmental Liens Overview — agentstitle.com (search snippet); 42 U.S.C. § 9607(l)]
  • State superfund super-lien? Colorado’s Hazardous Substance Incident Response Act (Title 25, Art. 16) creates a lien for cleanup costs, but Colorado does not have a state superfund “super-lien” that supersedes all prior recorded interests. State cleanup liens follow normal priority rules. (Colorado HSIRA lien priority details — needs_verification against statute text.)
  • Practical note: Environmental due diligence (Phase I at minimum) is strongly recommended before bidding on industrial, agricultural, or commercial parcels at tax sale.

Municipal Code / Blight Liens

  • Survive tax sale? Yes, for properly recorded liens. Colorado SB23-052 (effective August 7, 2023) clarifies that municipalities may levy a nuisance-abatement lien (for costs of removing weeds, brush, and other rubbish) that has priority over other liens except general taxes and prior special assessments. For the treasurer to collect a municipal nuisance lien alongside property taxes, the municipality must: (1) record notice within 4 months of abating the nuisance; and (2) certify the unpaid amount to the county treasurer within 1 year of recording. [Source: SB23-052 (fetched 2026-06-02)]
  • Notes: Municipal code-enforcement/blight liens that are not properly certified to the county treasurer may survive the tax sale as encumbrances on the title because the treasurer’s deed only conveys the interest against which the tax lien ran. Purchasers should check with the municipality’s code enforcement office for uncertified outstanding liens.

Mechanic Liens

  • Survive tax sale if noticed? Mechanic liens are generally extinguished by a valid tax sale because the real estate tax lien is senior to mechanic liens as a matter of Colorado priority law (§ 39-1-107 — tax liens are senior to all other liens). However, a mechanic lien with a recording date prior to the attachment of the tax lien could theoretically present a priority question. (Priority of mechanic lien vs. tax lien in Colorado — needs_verification.)

Junior Mortgage / Deed-of-Trust Exposure

  • Purchaser takes subject to senior? In a tax-lien sale, the certificate of purchase holder acquires a lien interest; junior deeds of trust recorded after the tax lien attachment remain subordinate. When a treasurer’s deed is eventually issued under Article 11.5, it conveys a “new and paramount title” that extinguishes junior (but not senior) interests. Senior deeds of trust (senior to the delinquent tax lien in time) would be a priority concern, but property taxes are senior by statute (§ 39-1-107), so in practice the tax lien is almost always senior to all deeds of trust.
  • Common mistake: Assuming the treasurer’s deed automatically clears IRS liens (it does not unless § 7425 notice was given and the redemption period ran) or HOA liens in mortgage-foreclosure contexts.

Pre-Bid Due Diligence Checklist

A prudent Colorado tax-sale bidder should search:

  1. IRS/federal tax lien search (PACER, county records, IRS lien-search) — confirm § 7425 notice was given.
  2. UCC lien search (Colorado Secretary of State) — for personal property, though less relevant for real estate.
  3. CERCLA/EPA enforcement records — EPA ECHO database; state CDPHE brownfields/cleanup database.
  4. HOA status search — contact HOA (if applicable) for delinquent assessments; confirm 6-month super-priority exposure.
  5. Municipal code-enforcement search — call city/county code enforcement for outstanding abatement liens not yet certified to treasurer.
  6. Title/chain-of-title search — identify senior deeds of trust and any other pre-lien encumbrances.
  7. Occupancy/possession check — who is in possession? Adverse-possession or other claims?
  8. Bankruptcy search (PACER) — confirm no automatic stay exists.

10b. Purchaser Obligations During Redemption

Must Pay Subsequent Taxes?

  • Required? Yes — and a certificate holder who pays subsequent taxes may endorse them onto the existing certificate at the same statutory interest rate (§ 39-12-103(3)). If subsequent taxes go unpaid, a junior CP (certificate of purchase for those later years) could be issued to a different buyer, complicating the pathway to a treasurer’s deed. [Source: § 39-12-103; Garfield County Treasurer FAQ (search snippets)]
  • Consequence of failure: The unpaid subsequent taxes will be included in the lien sale for those later tax years; a different investor could buy those junior CPs and displace the original holder’s path to the deed.
  • Citation: C.R.S. § 39-12-103(3); § 39-11-115 (annual lien sale framework).

Must Notify Owner of Expiration?

  • Required? Yes — under Article 11.5. Once the 3-year redemption period has run and the lawful holder records an Application for Public Auction (§ 39-11.5-102), the treasurer (not the holder) is required to provide notice to the owner and all recorded-interest holders. The holder itself is not required to send pre-expiration certified-mail notice to the owner; the notice obligation falls on the treasurer under § 39-11.5-104. [Source: HB24-1056 §§ 39-11.5-102, -103, -104 (enrolled text, fetched 2026-06-01)]
  • Form of notice (treasurer): mailed notice (certified) + posting on treasurer’s website + publication, per § 39-11.5-104.
  • Timing: Notice is provided after the holder files the application (within the ~125-day window before the Article 11.5 auction). There is no statutory requirement for the holder to send a personal 90-day warning letter to the owner prior to filing the application; that notice obligation does not exist in Colorado’s new scheme. (Contrast with states like Michigan or Indiana that require CP-holder notice — Colorado places that burden on the treasurer.)
  • Consequence of failure (by treasurer): Defective notice renders the resulting deed voidable under the Klingsheim framework (§ 39-11-128 diligent inquiry). [Source: Justia § 39-11-128; Klingsheim v. Cordell, 2016 CO 18]

Owner’s Right to Occupancy During Redemption

  • Owner may remain in possession? Yes — the certificate of purchase is a lien interest only, not a transfer of possession or title. The owner retains full possessory rights to the property throughout the redemption period. There is no statutory provision permitting a CP holder to enter or take possession of the property before the treasurer’s deed issues. [Source: § 39-12-103 framework; Article 11.5 (HB24-1056) — no possession provision for holder]
  • Purchaser may enter? No — a CP holder has no right to possession before the deed. Any entry without owner consent would constitute trespass. After the deed issues following the Article 11.5 auction, the new deed holder must use unlawful-detainer (eviction) proceedings to remove a holdover owner/occupant.

Costs Collectible Upon Redemption

When the owner (or other qualified party) redeems, the redemption amount includes:

  • The taxes, delinquent interest, and costs for which the lien was sold (the base bid, not the premium).
  • Statutory redemption interest at the § 39-12-103(3) rate (9% over the September 1 discount rate) from the date of sale.
  • Subsequent taxes paid by the CP holder and endorsed on the certificate, with interest from their respective payment dates.
  • The premium paid by the buyer at the lien sale is not collectible on redemption — it was credited to the county general fund and is gone.
  • Documented improvements: No statutory right to collect the cost of improvements made by the CP holder during the redemption period. (If a CP holder made significant improvements — this would be a pure unjust-enrichment or inverse-condemnation claim, not a statutory right — needs_verification.)
  • Citation: C.R.S. § 39-12-103; § 39-11-115 (premium to county).

Property Maintenance Obligation

  • Required? No statutory maintenance obligation is imposed on the CP holder during the redemption period. The holder holds a lien only and has no possessory rights, so there is no duty to maintain. The owner, who retains possession, bears normal property maintenance obligations (including HOA rules, municipal code compliance, etc.).
  • Standard: N/A (no holder duty).

11b. Restrictions & Special Rules

Entity Purchase Restrictions

  • Natural persons only? No — Colorado statutes do not restrict tax-lien-sale bidding to natural persons. LLCs, corporations, partnerships, and trusts may purchase certificates of purchase. (No “natural persons only” provision found in Title 39, Art. 11 — confirmed via review of county FAQs and CCTPTA manual.)
  • LLC permitted? Yes — county FAQs and the CCTPTA Colorado Treasurers Manual confirm that entities routinely purchase certificates at Colorado tax-lien sales.
  • Foreign entity permitted? Generally yes — there is no specific foreign-entity restriction in the tax-lien-sale statutes. However, Colorado’s HB23-1152 (effective January 1, 2024) prohibits persons/entities affiliated with foreign adversaries (China, Russia, or U.S.-designated state sponsors of terrorism) from acquiring controlling interests in agricultural land, mineral rights, or water rights; this restriction does not appear to extend to general real estate tax-lien certificates. (Overlap of foreign adversary restrictions with Colorado tax-sale purchasers — needs_verification.)
  • Citation: Title 39, Art. 11 (no restriction); HB23-1152 (foreign adversary — ag/mineral/water only).

Insider Prohibition

  • Who is prohibited: C.R.S. § 39-11-151 prohibits elected or appointed county officials, county employees, and their immediate family members from acquiring tax liens or properties from the county at tax-lien sales in the county where they serve — except (1) if they previously owned the property before the tax sale, (2) if the property is in a different county from their employment/office, or (3) if the sale involves severed mineral interests where the official owns the surface.
  • Penalty: Violation of § 39-11-151 is a Class 2 misdemeanor.
  • Scope: Applies to county-level officials and employees; no statewide prohibition on state employees bidding at county sales has been identified.
  • Citation: C.R.S. § 39-11-151. [Source: CCTPTA Colorado Treasurers Manual (fetched 2026-06-02)]

Right of First Refusal

  • Municipalities? No ROFR at the tax-lien sale or Article 11.5 auction has been identified. When no private bidder appears for a lien, the county “strikes off” the certificate to itself (§ 39-11-115), effectively making the county the holder — but this is not a ROFR, it is a fallback mechanism.
  • CDCs / nonprofits? No statutory ROFR for community development corporations at Colorado tax sales identified.
  • Land banks? No statutory ROFR for land banks at Colorado tax sales identified.
  • Note re HB24-1175: This 2024 law creates a ROFR/ROFO for local governments on multifamily rental properties (5+ units / 30+ years old) but does not apply to tax-lien sales, Article 11.5 auctions, or mortgage foreclosure sales. [Source: HB24-1175 (fetched 2026-06-02)]
  • Citation: § 39-11-115 (county strike-off only); HB24-1175 (ROFR limited to multifamily — not tax sales).

Land Bank Program

  • Exists? Yes — locally, not statewide. Colorado has several local land bank programs (e.g., Fort Collins Land Bank; Summit County Land Bank established 2012) enabled by local ordinances and Proposition 123 (affordable housing fund, 2022). There is no statewide land bank authority with a statutory mandate to receive unsold tax-foreclosure properties. [Source: Officials Housing Toolkit — Land Banking (fetched 2026-06-02); CDOLA land banking page]
  • Statute: No single statewide enabling statute for land banks; local programs operate under municipal authority (C.R.S. Title 31) and affordable housing law. Proposition 123 / CHFA manages the Land Banking program under the Affordable Housing Financing Fund.
  • Receives unsold properties? The Colorado mechanism for unsold tax-lien properties is the county “strike-off” to a county certificate (§ 39-11-115); counties may then assign those certificates to any buyer (including land banks if one exists locally). There is no statewide pipeline from unsold tax liens to a land bank.
  • Operational notes: Fort Collins Land Bank acquires parcels through direct purchase (not tax sale). Summit County Land Bank similar. (needs_verification of any Colorado county with a formal tax-lien-to-land-bank pipeline.)

Deficiency Judgment

  • Permitted after tax sale? Tax sales in Colorado are lien-sale → deed; no personal deficiency judgment arises from a tax-lien proceeding against the owner for the “deficiency” between the lien and the property value. The former owner’s surplus claim is handled by the Article 11.5 waterfall; no in personam judgment issues from the treasurer’s deed process. [Source: § 39-11.5 framework]
  • Permitted after mortgage foreclosure? Yes — Colorado allows a deficiency judgment. The foreclosing holder may file a separate lawsuit (within the 6-year statute of limitations) to recover the deficiency between the debt and the sale price. [Source: Nolo CO foreclosure; KDS Homebuyers article (search snippet)]
  • Fair value defense: C.R.S. § 38-38-106(6) provides the borrower (and guarantors) a defense if the lender failed to bid its good-faith estimate of fair market value at the foreclosure sale. A low bid does not void the sale but reduces any deficiency by the amount the bid fell short of fair value. [Source: Otten Johnson law firm; search snippet of § 38-38-106]
  • Citation: C.R.S. § 38-38-106(6) (fair value); 6-year SOL. [Source: confirmed via search]

Anti-Deficiency Statute

  • Exists? No blanket anti-deficiency statute. Colorado does not have a California-style anti-deficiency law. Deficiency judgments are available after mortgage foreclosure subject only to the fair-value defense in § 38-38-106(6) and the 6-year SOL. [Source: Nolo CO foreclosure; search]
  • Scope: N/A (no anti-deficiency statute).

One-Action Rule

  • Exists? No traditional one-action rule in Colorado for mortgage foreclosures. C.R.S. § 38-38-201 provides a limited analog: if a lender forecloses on installment payments without acceleration, upon the sale and expiration of all redemption periods the maker and parties personally liable are released from personal liability — but this is a narrow installment-specific rule, not a general one-action prohibition. (Whether § 38-38-201 functions as a practical one-action rule for installment land contracts — needs_verification.)
  • Citation: C.R.S. § 38-38-201 (limited installment rule). [Source: Justia § 38-38-201 (2022 snippet)]
  • Notes: In practice, Colorado lenders typically foreclose first, then sue for deficiency; there is no statutory bar to doing so sequentially.

Who this page is for

▸ For Investors / Operators — Start with the tax-sale mechanics (§1 — November premium “bonus bid” lien-certificate auction; the premium earns no interest and is not returned) and the redemption mechanics (§2/2b — a functionally 3-year window running until the treasurer’s deed executes, with disability tolling under § 39-12-104). For acquisition diligence, note that HB24-1056 (eff. 7/1/2024) added the Article 11.5 public-auction deed process and the overbid waterfall (§3), the title path (§5b — quiet title in district court), lien survival (§7b — IRS § 7425, senior/governmental claims), and the restrictions and special rules (§11b).

▸ For Former Owners — Start with the surplus rules (§3 — after the Article 11.5 auction, the overbid above the minimum bid goes to junior lienors and then the former owner under § 39-11.5-109) and the redemption mechanics (§2 — redeem through the county treasurer any time before the treasurer’s deed executes). The injunctive-relief section (§5c) covers grounds to halt a sale. Overbid recovery agreements are unenforceable while the treasurer holds the funds, so the owner claims directly at the county treasurer’s office.

11. Meta

Local pages

County deep dives: adams-co, arapahoe-co, boulder-co, denver-co, douglas-co, el-paso-co, jefferson-co, larimer-co, weld-co Unclaimed funds agency: unclaimed-property-colorado

Legal information, not legal advice. This page summarizes Colorado statutes and case law as of the last_verified date and may be incomplete or out of date. Verify against the cited primary sources and consult a licensed Colorado attorney before acting.

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