State Foreclosure Law Library

wisconsin

19 min read

Wisconsin — Tax & Mortgage Foreclosure

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

Wisconsin is not an investor lien-certificate state. Each year the county treasurer issues a single tax certificate to the county itself for every delinquent parcel, and the county “may not sell, assign, or otherwise transfer a tax certificate” (Wis. Stat. 74.57). There is therefore no public auction of tax liens to third parties; the county is the only party that forecloses and the county takes fee title. Two years after the certificate issues, the county forecloses — most commonly by the in rem action of Wis. Stat. 75.521, or by the older tax-deed-by-notice procedure (Wis. Stat. 75.07/75.12/75.14). Either way the county ends up with “an estate in fee simple absolute,” then resells the land under Wis. Stat. 75.35/75.36/75.69.

This makes Wisconsin a classic equity-theft jurisdiction historically: under Ritter v. Ross, 207 Wis. 2d 476, 558 N.W.2d 909 (Ct. App. 1996), counties kept 100% of resale surplus above the tax debt. That regime is the exact target of tyler-v-hennepin-county (598 U.S. 631 (2023)). Wisconsin had already begun reform: 2021 Wisconsin Act 216 (effective April 2, 2022) rewrote Wis. Stat. 75.36 to return surplus to the former owner, and 2023 Wisconsin Act 207 refined the notice and distribution mechanics. Pre-April-2-2022 forfeitures are the subject of post-Tyler class litigation (Elliott v. State of Wisconsin). Read every surplus rule below as freshly reformed law.

0. Identity & Classification

1. Tax Sale Mechanics

  • What is sold: ultimately the fee (county tax deed / in rem judgment), then resale of county-owned land. There is no sale of lien certificates to investors — the certificate runs to the county and is non-assignable. Wis. Stat. 74.57. — https://docs.legis.wisconsin.gov/statutes/statutes/74/vii/57
  • Bidding method: none at the lien stage (no investor auction). At the resale of tax-deeded land the county sells under Wis. Stat. 75.35/75.69 (public sale / sealed bid / negotiated sale per county board). Wis. Stat. 75.35. — https://law.justia.com/codes/wisconsin/chapter-75/section-75-35/
  • Interest / penalty on delinquency: delinquent real-property taxes carry statutory interest and penalty; the redemption amount is all taxes, special charges, special assessments, special taxes, interest and penalties accrued on the certificate. Exact statutory rate flagged in §11. Wis. Stat. 74.47, 75.01. — https://docs.legis.wisconsin.gov/statutes/statutes/75.pdf
  • Minimum bid composition (resale): set by the county board; nets the county at least its tax investment plus foreclosure/holding costs. Wis. Stat. 75.35, 75.69. — https://law.justia.com/codes/wisconsin/chapter-75/section-75-35/
  • Sale frequency / typical month: certificate issues annually September 1 (Wis. Stat. 74.57); in rem foreclosures filed once the 2-year period runs; county resales are scheduled by each county board (no statewide calendar). — https://www.co.sauk.wi.us/treasurer/rem-tax-foreclosure-information
  • Venue: county resales are both in-person and online depending on county (e.g., Dane County runs an online tax-deed auction). County-specific. — https://treasurer.danecounty.gov/taxdeedauction
  • Platform vendors: vary by county; see county pages.
  • Registration & deposit: set per county resale terms; see county pages.
  • Subsequent taxes (“subs”): not applicable in the investor sense — the county holds the certificate; ongoing-year delinquencies roll into the next annual certificate. Wis. Stat. 74.57.

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

  • Pre-foreclosure right: yes. After the September 1 certificate issues, the owner (or any interested party) may redeem at any time before the county forecloses by paying the certificate amount. The county cannot take a deed or enter in rem judgment until two years after the certificate is issued. Wis. Stat. 74.57, 75.521. — https://docs.legis.wisconsin.gov/statutes/statutes/74/vii/57
  • In rem foreclosure redemption period (75.521): redemption remains open until the date fixed in the published notice, which must be at least 8 weeks after the first publication; an interested party may also answer within 30 days after that redemption-expiration date. Wis. Stat. 75.521. — https://docs.legis.wisconsin.gov/statutes/statutes/75/521 , https://www.co.sauk.wi.us/treasurer/rem-tax-foreclosure-information
  • Tax-deed-by-notice redemption (75.07/75.12): the treasurer must publish redemption notices at least 6 and not more than 10 months before the time for redeeming expires, then serve notice of application for the tax deed (75.12). Wis. Stat. 75.07, 75.12. — https://law.justia.com/codes/wisconsin/2015/chapter-75/section-75.07
  • Who may redeem: “every person … having any right, title or interest in, or lien upon” the parcel, including municipalities other than the county (owners, heirs, mortgagees, lienholders). Wis. Stat. 75.521. — https://docs.legis.wisconsin.gov/statutes/statutes/75/521
  • Redemption amount formula: all delinquent general property taxes, special assessments, special charges, special taxes, plus interest, penalties and the county’s reasonable foreclosure/title costs. Wis. Stat. 75.521, 75.01.
  • Premium to certificate holder: none — there is no third-party certificate holder; the county holds the certificate.
  • Procedure: pay the redemption amount to the county treasurer before the redemption-expiration date in the in rem notice (or before tax-deed issuance under 75.12). Wis. Stat. 75.521.
  • Extinguishment: on default (no redemption and no answer), the circuit court enters final judgment vesting the county with an estate in fee simple absolute, which “has the effect of the issuance of a tax deed” and bars all former owners and claimants. Wis. Stat. 75.521. — https://docs.legis.wisconsin.gov/statutes/statutes/75/521
  • Special tolling: statutory limits exist on reopening an in rem judgment; exact window flagged in §11 (commonly cited as a short post-judgment period under 75.521). Bankruptcy 11 U.S.C. 362 stay tolls; SCRA protections apply to servicemembers. See bankruptcy-automatic-stay.

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

  • Belongs to: former owner, after a statutory deduction waterfall. This is the post-Tyler/Act-216 rule; pre-April-2-2022 the county kept the surplus (Ritter v. Ross). Wis. Stat. 75.36(2m). — https://docs.legis.wisconsin.gov/statutes/statutes/75/36/3
  • Claim waterfall (Wis. Stat. 75.36(3)(a)-(b), (2m)): from the resale price the county deducts, in order:
    1. foreclosure costs, record-keeping, legal, advertising, and title-insurance costs;
    2. maintenance costs for code/health compliance, board-up, clean-up, demolition costs;
    3. reasonable and customary real-estate agent/broker fees and other actual selling costs;
    4. all unpaid general property taxes, interest, penalties, special assessments, special charges and special taxes;
    5. withdrawal tax/fee (forestry) and special assessments/charges due to other taxing jurisdictions;
    6. remaining net proceeds → the former owner (less any delinquent taxes the former owner owes the county on other property; plus the property taxes that would have been owed for the sale year). Wis. Stat. 75.36(2m)(a), (3). — https://docs.legis.wisconsin.gov/statutes/statutes/75/36/3
  • Filing venue: county treasurer of the county that took the deed (the treasurer initiates by mailing notice; the former owner responds to the treasurer). Wis. Stat. 75.36(2m). — https://docs.legis.wisconsin.gov/statutes/statutes/75/36
  • Claim deadline (+citation): under 2021 Act 216, the former owner must request payment in writing within 60 days of receiving the treasurer’s notice or forfeit the claim; if the county cannot locate the former owner within 5 years of the notice, the right to remaining equity is forfeited. Under the current statute as amended by 2023 Act 207, a payment returned or unclaimed within one year of mailing becomes unclaimed funds. Wis. Stat. 75.36(2m), (4). — https://docs.legis.wisconsin.gov/2021/related/acts/216 , https://docs.legis.wisconsin.gov/2023/related/acts/207 , https://docs.legis.wisconsin.gov/statutes/statutes/75/36
  • Escheat / unclaimed funds: unclaimed surplus is “disposed of pursuant to s. 59.66(2)” (county unclaimed-funds procedure, ultimately escheat). No interest is owed to the former owner on sums held by the county. Wis. Stat. 75.36(4), (5). — https://docs.legis.wisconsin.gov/statutes/statutes/75/36
  • Documentation required: written payment request to the treasurer; proof of identity / former-owner status; for contested cases, court order. (County forms vary — see county pages.) Wis. Stat. 75.36(2m).
  • Third-party recovery (recovery-agent rules):
    • fee_cap_pct: no tax-deed-surplus-specific statutory fee cap located — flagged in §11. (Wisconsin’s general unclaimed-property finder-fee cap in Wis. Stat. 177.34 / ch. 177 governs unclaimed property; whether it reaches treasurer-held tax surplus before escheat is unverified — see §11.)
    • licensing_required: unverified for tax-surplus recovery specifically (§11).
    • assignment_of_claim_allowed: the statute directs payment “to the former owner”; whether the right is freely assignable to a recovery agent is unverified — flagged in §11.
    • cooling_off_period / contract_disclosure_rules / prohibited_practices: not located in ch. 75; possibly governed by general consumer-protection law (Wis. Stat. ch. 100) — unverified, §11.
    • citation: Wis. Stat. 75.36(2m); ch. 177 (unclaimed property) — exact reach unverified. — https://docs.legis.wisconsin.gov/statutes/statutes/75/36
  • Notice to former owner required? Yes. Upon acquiring the tax deed the treasurer shall notify the former owner by registered or certified mail sent to the mailing address on the tax bill that they may be entitled to a share of resale proceeds. Wis. Stat. 75.36(2m)(a). — https://docs.legis.wisconsin.gov/2023/related/acts/207

4. Mortgage Foreclosure

5. Sale Procedure Playbooks

  • Treasurer / tax-deed sale — ordered steps → see treasurer-sale:
    1. Sept 1: county treasurer issues the tax certificate to the county for all parcels delinquent at close of Aug 31. Wis. Stat. 74.57.
    2. Redemption stays open; treasurer publishes redemption notices (75.07) on the tax-deed path.
    3. Two years after certificate issuance, the county may foreclose. Wis. Stat. 74.57, 75.521.
    4. In rem (75.521): file the parcel list + petition with the clerk of circuit court; mail certified notice to owners/mortgagees/municipalities; class 3 publication (Wis. ch. 985) and post in the treasurer’s office; redemption expires no sooner than 8 weeks after first publication; 30-day answer window; default → judgment vesting fee simple in the county.
    5. OR tax deed by notice (75.07/75.12/75.14): publish redemption notices 6–10 months out, serve notice of application, then county clerk executes a tax deed vesting absolute fee in the county.
    6. County resells the land (75.35/75.69); net surplus paid to former owner (75.36). — https://docs.legis.wisconsin.gov/statutes/statutes/75/521 , https://www.co.sauk.wi.us/treasurer/rem-tax-foreclosure-information
  • Sheriff (mortgage) sale — ordered steps → see sheriff-sale:
    1. Lender files judicial foreclosure (ch. 846); 2. judgment of foreclosure + redemption period (12/6/3 mo. per 846.10/.101/.103); 3. sheriff publishes & conducts sale after period runs; 4. 5 days’ notice of the confirmation motion to appearing parties; 5. court confirms sale and rules on any deficiency with fair-value offset (846.165); 6. surplus distributed by priority. — https://docs.legis.wisconsin.gov/statutes/statutes/846/165
  • Notice requirements (tax in rem): certified mail to last-known addresses of owners/mortgagees/municipalities + class 3 newspaper publication (3 weeks) + posting in the treasurer’s office for ≥8 weeks. Wis. Stat. 75.521. — https://docs.legis.wisconsin.gov/statutes/statutes/75/521
  • Upset bid / confirmation: tax in rem judgment is entered by the court after the answer period (no upset-bid mechanism); mortgage sales require judicial confirmation (846.165).
  • Payment terms: county resale terms set per county; mortgage sale typically cash/deposit at sheriff’s sale per county practice.
  • Deed issued: tax foreclosure → county tax deed / in rem judgment vesting fee simple absolute (subject to recorded restrictions and statutory redemption); mortgage → sheriff’s deed after confirmation. Wis. Stat. 75.14, 75.521. — https://law.justia.com/codes/wisconsin/chapter-75/section-75-14/

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

7. Title & Marketability

  • Deed warranty level: tax deed / in rem judgment conveys the county’s statutory title — no warranty (subject to recorded restrictions and any statutory redemption). Wis. Stat. 75.14. — https://law.justia.com/codes/wisconsin/chapter-75/section-75-14/
  • Marketable immediately? Generally no — buyers usually quiet title or rely on the statutory limitation period before title is fully marketable; practice varies by county/title underwriter.
  • Quiet title required? Commonly used to clear residual clouds, especially for the older tax-deed path; the in rem judgment is intended to be self-clearing but underwriters often still require a quiet-title action. (See §11 — exact limitation periods to confirm.)
  • SOL to challenge deed: Wis. Stat. ch. 75 sets short statutory periods to attack a tax deed / reopen an in rem judgment — exact periods flagged in §11.
  • Title insurance availability: available but underwriters typically require the redemption/limitation period to run or a quiet-title judgment. County-specific.
  • Common defects: defective statutory notice (void judgment), unredeemed federal tax liens with their own redemption right (federal-tax-lien-redemption), bankruptcy-stay violations, omitted interested parties.

8. Case Law (real, verified)

CaseYearTopicHolding (plain English)Source
tyler-v-hennepin-county (598 U.S. 631)2023surplus, due_processA state commits an unconstitutional taking when it keeps tax-foreclosure surplus beyond the tax debt; the former owner is entitled to the excess. Controls Wisconsin’s pre-2022 retention regime.https://en.wikipedia.org/wiki/Tyler_v._Hennepin_County
ritter-v-ross (207 Wis. 2d 476, 558 N.W.2d 909)1996surplus, due_processWisconsin Ct. App. held county retention of resale surplus was not an unconstitutional taking (no state-law property interest in surplus) and that due process did not require notice that the county might keep the surplus. Superseded by Tyler and 2021 Act 216.https://www.wicourts.gov/ca/opinion/DisplayDocument.html?content=html&seqNo=9366
mullane-v-central-hanover (339 U.S. 306)1950due_process, sale_procedureNotice must be “reasonably calculated” to reach interested parties — baseline for ch. 75 notice.https://en.wikipedia.org/wiki/Mullane_v._Central_Hanover_Bank_%26_Trust_Co.
mennonite-v-adams (462 U.S. 791)1983due_processMortgagees of record are entitled to actual (mailed) notice before a tax sale — codified in 75.521 certified-mail requirement.https://en.wikipedia.org/wiki/Mennonite_Board_of_Missions_v._Adams
jones-v-flowers (547 U.S. 220)2006due_process, redemptionReturned certified mail obligates the state to take additional reasonable steps — applies to returned 75.521 / 75.36 notices.https://en.wikipedia.org/wiki/Jones_v._Flowers

Additional Wisconsin authorities consulted but NOT fully verified (citations to confirm) are listed in §11 rather than asserted here — see “In re Foreclosure of Tax Liens” line, the federal-tax-priority surplus appeal, and the Elliott v. State of Wisconsin class action.

9. Edge Cases (state-specific notes)

  • bankruptcy-automatic-stay — a Chapter 7/13 filing imposes the 11 U.S.C. 362 stay; an in rem judgment or tax deed taken in violation is void/voidable.
  • federal-tax-lien-redemption — a recorded federal tax lien carries a 120-day post-sale redemption right under 26 U.S.C. 7425; federal claims can also take priority in surplus distribution under 31 U.S.C. 3713 (Wisconsin appellate decision, 2025 — citation to confirm in §11).
  • heirs-property — undivided heir interests must each be served; missed heirs are a frequent void-notice defect under 75.521.
  • hoa-super-priority — Wisconsin has no Nevada-style HOA super-priority; assessment liens follow ordinary priority. (Confirm — §11.)
  • manufactured-homes — manufactured/mobile homes taxed and titled separately; procedure differs from real-property ch. 75 — confirm per county (§11).
  • scra-protections — Servicemembers Civil Relief Act tolls redemption and restricts foreclosure against active-duty servicemembers.
  • void-vs-voidable — defective statutory notice renders a Wisconsin tax foreclosure void (see §6); other irregularities may be merely voidable.

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