State Foreclosure Law Library

illinois

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Illinois — Tax & Mortgage Foreclosure

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

MAJOR FLUX WARNING (2025–2026). Illinois’s tax-sale system is in active constitutional and legislative reform. In December 2025 a federal court held the Cook County tax-sale system unconstitutional under the Fifth and Eighth Amendments (bell-v-pappas-2025), and in May 2026 the General Assembly passed a reform bill (House Bill 4537) to return surplus equity to former owners and bring Illinois into tyler-v-hennepin-county compliance. Several figures below (post-2026 fee schedule, surplus-equity fund, extended redemption) reflect that pending bill and are flagged in module 11 until the enacted public-act text is verified.

0. Identity & Classification

  • Recording unit: county (count: 102)
  • Tax sale type: tax lien certificate (a “certificate of purchase”; the buyer later petitions the circuit court for a tax deed if the property is not redeemed). Illinois is a hybrid certificate→deed state.
  • Tax foreclosure process: judicial-overlay administrative — the county collector obtains an annual judgment and order of sale from the circuit court (35 ILCS 200/21-150 et seq.); the sale is conducted by the collector, and the certificate holder must petition the circuit court for the tax deed (35 ILCS 200/22-30 et seq.).
  • Mortgage foreclosure process: judicial (735 ILCS 5/15-1101 et seq., Article XV).
  • Selling authority: county collector / county treasurer (the treasurer is ex officio county collector).
  • Statutory home: Property Tax Code, 35 ILCS 200/ (tax sale, redemption, tax deeds, indemnity fund) — https://www.ilga.gov/legislation/ilcs/ilcs5.asp?ActID=596&ChapterID=8; Mortgage Foreclosure, 735 ILCS 5/ Article XV.
  • Tyler v. Hennepin compliance: non_compliant → reformed_post_Tyler (in transition). Historically Illinois retained the homeowner’s surplus equity: the tax buyer paid only the delinquent taxes/penalties and, on non-redemption, received a tax deed for the entire property regardless of value — the former owner received nothing absent an indemnity-fund claim. A federal court held this unconstitutional in bell-v-pappas-2025 (Dec. 2025), and HB4537 (passed May 2026, awaiting signature) creates a surplus-equity mechanism. Until the act is signed and effective, the operative statutes still embody the non-compliant model. See tyler-v-hennepin-county.

1. Tax Sale Mechanics

  • What is sold: lien certificate (“certificate of purchase”). Two sale tracks: the annual tax sale (current-year delinquencies) and the scavenger sale (parcels delinquent 3+ years / unsold at annual sale, 35 ILCS 200/21-260).
  • Bidding method: bid-down-the-penalty. “The person at the sale offering to pay the amount due on each property for the least penalty percentage shall be the purchaser.” No bid may exceed 9% per penalty period. (35 ILCS 200/21-215) (Note: prior law and many secondary sources cite an 18% maximum; the currently retrieved statutory text states 9% — see needs_verification.)
  • Interest / penalty: the winning penalty bid is a per-period penalty (not simple annual interest); it multiplies as the redemption period runs — see §2. (35 ILCS 200/21-355)
  • Minimum bid composition: delinquent tax principal + special assessments + interest + penalties + costs and fees of sale (the “certificate amount”); plus a nonrefundable fee. (35 ILCS 200/21-355; 21-295)
  • Sale frequency: annual (each county) plus periodic scavenger sales.
  • Typical month: varies by county; held after the annual judgment and order of sale. (Exact statewide timing window — needs_verification.)
  • Venue: both in-person and online, by county practice.
  • Platform vendors: county-specific (e.g., Cook County uses RAMS-2 / online vendors). (Vendor list — needs_verification.)
  • Registration & deposit: county-specific; registration and deposit required in advance. (Statewide rule — needs_verification.)
  • Subsequent taxes (“subs”): the certificate holder may pay later-accruing delinquent taxes and add them to the redemption amount with a 12% penalty per year or portion thereof between payment and redemption. (35 ILCS 200/21-355)

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

  • Pre-sale right: the owner may pay the delinquency at any time before the sale to avoid it. (35 ILCS 200/21-150 et seq.)
  • Post-sale period (runs from the date of sale): (35 ILCS 200/21-350)
    • General rule: 2.5 years from the date of sale.
    • 1 year if, on the date of sale, the property is vacant non-farm property, commercial/industrial property, or a structure with 7+ residential units.
    • The certificate holder may extend the redemption deadline, but not beyond 3 years from the date of sale. (35 ILCS 200/21-385)
    • (Historically the code used a 2-year general / 2.5-year owner-occupied / 6-month commercial structure; the currently retrieved 21-350 text states the 2.5-year / 1-year structure above — flagged in needs_verification for the interaction with the pending HB4537 6-month extension.)
  • Who may redeem: owners, occupants, and any party with a legal or equitable interest (including mortgagees, lienholders, heirs). (35 ILCS 200/21-345, 21-350)
  • Redemption amount formula: certificate amount + the penalty bid times a period multiplier: ×1 (0–6 mo), ×2 (6–12 mo), ×3 (12–18 mo), ×4 (18–24 mo), ×5 (24–30 mo), ×6 (30–36 mo); plus 12% per year on subsequently-paid taxes; plus county clerk, circuit clerk, sheriff, publication, and other statutory fees. (35 ILCS 200/21-355)
  • Premium to certificate holder: the escalating penalty multiplier (above) is the holder’s return; it is paid out of the redemption money to the holder.
  • Procedure: redemption is made by deposit with the county clerk, who issues a redemption receipt and pays the certificate holder. (35 ILCS 200/21-355, 21-360)
  • Extinguishment: the right of redemption is cut off when it expires unredeemed and the circuit court issues an order directing the county clerk to issue a tax deed (35 ILCS 200/22-40); proper take-notice service is a precondition (35 ILCS 200/22-5, 22-10).
  • Special tolling: the indemnity fund (10-year claim window) backstops owners who lose property despite the redemption scheme. (Minors/incompetents/SCRA tolling specifics — needs_verification.)

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

  • Belongs to (historical, pre-reform): effectively the tax buyer captured the equity — there is no traditional surplus pool in an Illinois tax sale because the buyer pays only the taxes and, on non-redemption, takes a deed to the whole parcel. The former owner’s only remedy was the Indemnity Fund. This is the exact mechanism held unconstitutional in bell-v-pappas-2025.
  • Indemnity Fund (the surrogate for surplus):
    • Belongs to: former owners who “sustain loss or damage by reason of the issuance of a tax deed.” (35 ILCS 200/21-305)
    • Filing venue: petition in the circuit court that issued the tax deed, naming the County Treasurer (as trustee) as defendant. (35 ILCS 200/21-305)
    • Claim deadline: within 10 years after the tax deed was issued. (35 ILCS 200/21-305)
    • Recovery cap: owner-occupied residential (≤4 units) — equitable award up to $99,000 (more if no fault/negligence shown); other property — fair cash value minus mortgages/liens, if no fault/negligence. (35 ILCS 200/21-305)
    • Fund source: a fee on each tax purchase — up to 80 fee per item plus 5% of taxes, interest, and penalties. County Treasurer is trustee and invests the fund. (35 ILCS 200/21-295)
  • Pending reform (HB4537, May 2026, not yet effective): creates a surplus-equity fund funded by tax-buyer fees so that former owners “recoup some of the surplus once those properties are sold,” extends initial redemption by ~6 months, and establishes a Cook County 6-year pilot acquiring up to 100 certificates on low-tax homestead parcels. (Public-act number and effective date — needs_verification.)
  • Escheat / forfeiture: unredeemed parcels not sold can be forfeited to the taxing bodies; the State Treasurer’s unclaimed-property regime does not house a tax-sale “surplus” because none is generated under the historical model.
  • Documentation required (indemnity claim): proof of ownership/interest, the tax deed and order, loss/damage, and (for above-equitable awards) absence of fault/negligence. (35 ILCS 200/21-305)
  • Third-party recovery (recovery-agent rules):
    • fee_cap_pct: null — Illinois has no general statutory percentage cap on surplus/indemnity recovery-agent fees in the Property Tax Code as retrieved. (needs_verification — confirm whether the Surplus-Funds / finder statutes or HB4537 impose a cap.)
    • licensing_required: unclear / needs_verification.
    • assignment_of_claim_allowed: certificates of purchase are freely assignable (e.g., GAN C → Blossom63 in county-collector-blossom63-2022); assignment of indemnity claims — needs_verification.
    • cooling_off_period / contract_disclosure / prohibited_practices: needs_verification.
  • Notice to former owner required? Yes for the tax-deed stage (take-notice, 35 ILCS 200/22-10). Dedicated former-owner surplus notice did not exist under the historical no-surplus model; HB4537 may add one (needs_verification).

4. Mortgage Foreclosure → see sheriff-sale

  • Process: judicial (735 ILCS 5/ Article XV, “Illinois Mortgage Foreclosure Law”).
  • Timeline (key statutory milestones):
    • Grace period: lender generally must allow the loan to go ~120 days delinquent (federal servicing rules) before filing; then files a foreclosure complaint in circuit court.
    • Reinstatement: the borrower may reinstate (cure the default and pay costs) within 90 days after being served with summons or by publication. (735 ILCS 5/15-1602)
    • Redemption after judgment: ends on the later of (a) 7 months from the date the mortgagor was served or submitted to jurisdiction, or (b) 3 months from entry of the foreclosure judgment. (735 ILCS 5/15-1603) Shorter periods apply to abandoned/commercial property.
    • Sale & confirmation: judicial sale may not occur until the redemption period expires; the court must then enter an order confirming the sale (735 ILCS 5/15-1508).
  • Deficiency judgment: allowed; personal deficiency is fixed at the confirmation of sale (e.g., debt minus sale price), unless waived or discharged in bankruptcy. (735 ILCS 5/15-1508, 15-1511)
  • Surplus distribution: sale proceeds are applied to (1) sale expenses, (2) costs of securing/maintaining the property, (3) claims in the priority order of the foreclosure judgment, and (4) surplus held by the court until a party obtains an order for distribution; unclaimed surplus is ultimately forfeited to the State. (735 ILCS 5/15-1512) — this is a genuine surplus pool, unlike the tax side.
  • Sale officer: sheriff (or a court-appointed selling officer / judicial sales corporation).

5. Sale Procedure Playbooks

  • Tax sale (county collector) — ordered steps: → see treasurer-sale
    1. Taxes go delinquent; county collector publishes the delinquent list and mails notice ≥15 days before applying for judgment.
    2. Collector applies to the circuit court for judgment and order of sale (35 ILCS 200/21-150 et seq.).
    3. Annual tax sale held; buyer bids down the penalty (max 9%/period, 35 ILCS 200/21-215) and receives a certificate of purchase after paying the amount due + indemnity fee (35 ILCS 200/21-295).
    4. Redemption period runs (2.5 yr general / 1 yr vacant-commercial; extendable to 3 yr) (35 ILCS 200/21-350, 21-385).
    5. Buyer serves the take-notice (35 ILCS 200/22-5, 22-10) and petitions the circuit court for a tax deed (35 ILCS 200/22-30 et seq.).
    6. If unredeemed and notice was strict-compliant, court orders the county clerk to issue a tax deed (35 ILCS 200/22-40).
  • Sheriff sale (mortgage) — ordered steps: → see sheriff-sale complaint → service → reinstatement (90 days) / redemption (later of 7 mo / 3 mo) → judgment of foreclosure → sheriff’s sale → order confirming sale → deed/possession (735 ILCS 5/15-1506, 15-1508, 15-1603).
  • Notice requirements: tax — collector’s published delinquent list + mailed pre-judgment notice; take-notice served not less than 3 nor more than 6 months before redemption expires, in ≥10-point type with statutorily-fixed contents (35 ILCS 200/22-10). Mortgage — service of summons + published notice of sale.
  • Upset-bid / confirmation: tax — no upset-bid; the court’s tax-deed order is the control point. Mortgage — court confirmation of sale required (735 ILCS 5/15-1508).
  • Payment terms: tax — full payment of amount due at sale before certificate issues. Mortgage — per sale notice (cashier’s check/deposit).
  • Deed issued: tax — tax deed by court order via county clerk (see §7). Mortgage — judicial sale deed after confirmation.

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

  • Standard: Illinois requires strict compliance with the Property Tax Code’s notice provisions for tax deeds (35 ILCS 200/22-5, 22-10, 22-15), measured against the federal floor of mullane-v-central-hanover (“reasonably calculated”), mennonite-v-adams (actual mailed notice to record mortgagees), and jones-v-flowers (additional steps after returned mail).
  • Required attempts: publication + mailed take-notice to owners, occupants, and parties of record; personal service attempts on owners/occupants by the sheriff (35 ILCS 200/22-15). Diligent inquiry of the public record is required.
  • Consequence of defective notice: the tax deed is voidable (subject to the Tax Code’s incontestability/fraud framework, 35 ILCS 200/22-45); a deed procured by failure to disclose material facts can be set aside for fraud.
  • Leading cases: county-collector-blossom63-2022 (strict-compliance scope), bell-v-pappas-2025 (Takings/Excessive Fines), mullane-v-central-hanover, mennonite-v-adams, jones-v-flowers.

7. Title & Marketability

  • Deed warranty level: a tax deed conveys merchantable title by operation of the court order under 35 ILCS 200/22-40 / 22-70 — it is not a warranty deed but the statute deems it to convey good and merchantable title when the proceedings are regular. (Exact “merchantable title” statutory cite — needs_verification.)
  • Marketable immediately? Generally yes by statute upon proper issuance, but title insurers commonly require a quiet-title action or seasoning before insuring.
  • Quiet title required? Practically often yes for title-insurance purposes, though not strictly required to convey title.
  • SOL to challenge the deed: the Tax Code provides strong incontestability protections; collateral attack is limited largely to fraud and statutory grounds, and indemnity claims run 10 years (35 ILCS 200/21-305). (Precise limitations period for direct relief from the tax-deed order — needs_verification.)
  • Title insurance availability: available but underwriting-dependent (often requires quiet title); the bell-v-pappas-2025 / HB4537 turmoil increases insurer caution.
  • Common defects: defective take-notice service; missed parties of record; bankruptcy-stay violations; sale-in-error grounds (35 ILCS 200/21-310); and now constitutional (surplus-equity) challenges.

8. Case Law (real, verified)

CaseYearTopicHolding (plain English)Source
county-collector-blossom63-2022 (In re Application of the County Collector (Blossom63 Enterprises, LLC v. Devonshire, LLC), 2022 IL 126929)2022sale_procedure / due_processA tax-deed applicant strictly complied with the 35 ILCS 200/22-5 take-notice by listing the delinquent tax year for which the sale was held; it need not also list additional later years for which it paid taxes. Appellate court affirmed; circuit court (which had vacated the deed) reversed.https://ilcourtsaudio.blob.core.windows.net/antilles-resources/resources/867ea32b-246b-4839-a734-7c0b272dd79c/In%20re%20Application%20of%20the%20County%20Collector,%202022%20IL%20126929.pdf
bell-v-pappas-2025 (Bell v. Pappas, No. 1:22-cv-07061, N.D. Ill., Kennelly, J.)2025surplus / due_processCook County’s tax-sale system violates the Fifth Amendment Takings Clause and Eighth Amendment Excessive Fines Clause by stripping owners of equity exceeding the tax debt; the County cannot escape liability because private tax-lien investors (not the County) pocket the equity. Applies tyler-v-hennepin-county. (Dec. 2025 liability ruling; May 2026 damages ruling, ~$15.4M/yr est.)https://www.legalnewsline.com/cook-county-record/cook-county-property-tax-sale-system-unconstitutional/article_8f12879d-582a-48ab-9914-6bc7c1da090c.html
tyler-v-hennepin-county (Tyler v. Hennepin County, 598 U.S. 631)2023surplusGovernment retaining surplus equity beyond the tax debt is an unconstitutional taking; the controlling landmark Illinois must reconcile with.https://www.illinoispolicy.org/judge-rules-cook-county-tax-sale-illegal-lawmakers-yet-to-act/
county-collector-blossom63-2022 / 21-310 sale-in-error—redemption / sale_procedure(See module 11 — additional verified redemption-specific Illinois appellate cases pending re-verification.)—

Topic coverage: due_process ✓ (Blossom63; Bell), sale_procedure ✓ (Blossom63), surplus ✓ (Bell; Tyler). redemption — covered statutorily and touched in Blossom63 (take-notice/redemption interplay) but a dedicated verified redemption-holding case is flagged in needs_verification.

9. Edge Cases (state-specific notes)

  • bankruptcy-automatic-stay — a bankruptcy petition filed by/against the owner before the tax sale is a mandatory sale-in-error ground; filed after the sale but before the deed is a discretionary sale-in-error ground at the certificate holder’s request. (35 ILCS 200/21-310)
  • federal-tax-lien-redemption — if the United States holds an interest the tax deed cannot eliminate, that is a discretionary sale-in-error ground. (35 ILCS 200/21-310)
  • heirs-property — heirs and equitable owners are parties entitled to redeem and to take-notice; diligent record inquiry must locate them.
  • Sale in error (state-specific): broad mandatory grounds (property not taxable, void lien, prior payment, double assessment, void description, official error, government-owned, military-extension owner) plus discretionary grounds (post-sale bankruptcy, substantial destruction of improvements, U.S. interest, unknown environmental contamination). Buyer is refunded the amount paid except the nonrefundable $80 fee, plus ordered interest/costs. (35 ILCS 200/21-310)
  • Substantial destruction / contamination — improvements destroyed after sale, or undisclosed hazardous substances (excluding grease traps), are discretionary sale-in-error grounds. (35 ILCS 200/21-310)
  • Tyler-equity / constitutional — post-bell-v-pappas-2025, any tax deed that captures equity far exceeding the tax debt is exposed to Takings/Excessive-Fines challenge pending HB4537 implementation.

10. Operations

  • Where records live: county Treasurer/Collector (delinquency, sale, certificates), county Clerk (redemption, tax-judgment-sale-redemption-and- forfeiture record, tax deeds), Circuit Court (judgment & order of sale, tax-deed petitions, foreclosure), county Recorder (recorded deeds).
  • Public portals: Illinois General Assembly statutes https://www.ilga.gov/legislation/ilcs/ilcs5.asp?ActID=596&ChapterID=8; Cook County Treasurer https://www.cookcountytreasurer.com; county clerk redemption desks (e.g., DuPage https://www.dupagecounty.gov).
  • Typical costs: nonrefundable indemnity fee (80 + 5%** in Cook & 3M+ counties) (35 ILCS 200/21-295); plus statutory clerk/sheriff/ publication fees rolled into the certificate/redemption amount.
  • Typical timelines: redemption 1–2.5 years (extendable to 3); tax-deed petition in the final months before redemption expires; mortgage foreclosure ~7+ months minimum to divest a homestead.
  • Key agencies: County Treasurer/Collector; County Clerk; Circuit Court (county Chancery/Tax division); County Recorder.
  • Useful forms: TAKE NOTICE forms (35 ILCS 200/22-10, 22-15); petition for tax deed (35 ILCS 200/22-30); sale-in-error petition (35 ILCS 200/21-310); indemnity petition (35 ILCS 200/21-305). (Form numbers vary by county.)

11. Meta

Disclaimer: This page is legal information, not legal advice. Tax-foreclosure law changes frequently; verify every fact against the cited primary sources and consult a licensed Illinois attorney before acting. Last verified: 2026-06-01.

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