Winnebago County, Illinois — Tax Sale & Surplus Procedure

Local operations layer. The legal framework (redemption periods, surplus rights, statutes, case law) lives on the parent page → illinois. This page covers how Winnebago County actually runs it. Legal information, not legal advice. Last verified: 2026-06-02.

REFORM FLUX NOTE. Illinois’s tax-sale system is in active constitutional and legislative reform following bell-v-pappas-2025 (Cook County system held unconstitutional, Dec. 2025) and HB4537 (surplus-equity reform, passed May 2026, awaiting governor’s signature). Winnebago County is a sub-3-million county, so the Cook County $80+5$20/parcel indemnity-fee schedule applies (35 ILCS 200/21-295). HB4537’s post-reform surplus mechanism will affect Winnebago County when effective — see illinois §3.

C0. Identity

• County seat: Rockford, Illinois
• Population: ~285,337; FIPS 17201
• Recording unit: county
• Judicial circuit: 17th Judicial Circuit (Winnebago and Boone counties)
• Parent legal framework: illinois

C1. Local Tax Sale

• Conducts own sale? Yes — the Winnebago County Treasurer, as ex officio county collector (Theresa Grennan, appointed Treasurer Jan. 31, 2025), conducts the annual tax sale of delinquent property taxes. See treasurer-sale. https://wincoil.gov/departments/treasurer
• Platform / vendor — IN-PERSON LIVE AUCTION (no online platform): Winnebago County’s annual tax sale is a live, in-person auction. The Treasurer’s tax information page states the county uses a live auction format where registered buyers bid percentage rates with a cap at 9%, the caller accepts the lowest bid to win, and “phone and internet bids are not accepted.” This distinguishes Winnebago’s tax sale from its mortgage-foreclosure sales, which ARE online (Sheriff via ROUP.com — see C3 / C5). needs_verification: the exact in-person sale venue/room within the County Administration Building; contact Treasurer (815) 319-4400. https://wincoil.gov/departments/treasurer/tax-information
• Calendar / frequency:
  • Annual tax sale held once per year for the prior year’s delinquencies.
  • Typical timing: “the last week of October or early November, dates to be determined by Treasurer.”
  • Recent sale (per secondary listing): the annual tax lien auction was held November 19, 2024 (hometaxsale.com listing; not an official county page).
  • The 2025/2026 tax-sale dates were not published on the retrieved official pages as of 2026-06-02. needs_verification: exact 2025/2026 sale date; contact Treasurer (815) 319-4400. https://wincoil.gov/departments/treasurer/tax-information https://hometaxsale.com/auction/il/winnebago
• Bidding method: Bid-down-the-penalty per illinois §1 (35 ILCS 200/21-215). Bidding starts at 9% per 6-month penalty period and may go down to zero; the lowest bid wins. (Treasurer tax-information page; hometaxsale.com.) https://wincoil.gov/departments/treasurer/tax-information
• Registration requirements:
  1. Must be a registered buyer to attend; registration window is limited and tied to the sale date.
  2. The registration form is NOT available online — request it from the Treasurer’s office by phone (815) 319-4400 or email.
  3. First-time buyers must provide a bank letter confirming credit capacity. https://wincoil.gov/departments/treasurer/tax-information
• Registration deposit / list fee:
  • $500.00 registration deposit (separate check payable to Winnebago County Treasurer). The$500 is applied toward taxes purchased at the sale; if the buyer does not show, or attends but is not an active bidder, the $500 is forfeited to Winnebago County.
  • $200.00 fee for the delinquent properties list (tax-sale list), required as a separate check payable to Winnebago County Treasurer. https://wincoil.gov/departments/treasurer/tax-information https://hometaxsale.com/auction/il/winnebago
• Per-parcel statutory fee: $20 indemnity fund fee per parcel (sub-3-million county rate; 35 ILCS 200/21-295). Additional statutory fees (certificate, costs, automation fund, sale-in-error fund) are rolled in per state law. needs_verification: Winnebago County’s exact bundled per-parcel fee schedule.
• Certificate pickup: Tax buyers must pick up certificates in person; shipping arrangements are available through Michelle at (815) 319-4415. https://wincoil.gov/departments/treasurer/tax-information
• Delinquent list / notification: In September, before delinquent taxes go to the October/November sale, certified letters are mailed to owners informing them of dates and penalties, and a notice is published in a local newspaper. The tax-sale (delinquent properties) list is the $200-fee document above. needs_verification: specific newspaper title. https://wincoil.gov/departments/treasurer/faqs https://wincoil.gov/departments/treasurer/tax-information

C2. Local Redemption → framework: right-of-redemption

• Where to redeem locally: The Winnebago County Clerk — Tax Extension / Redemption division. After the tax sale, “all records of delinquent taxes move to the County Clerk’s Tax Extension office,” which computes and collects redemption payments for sold taxes and ultimately issues tax deeds. This mirrors the Illinois state-standard Treasurer-sells / Clerk-redeems split.
  • Mailing address: Winnebago County Clerk, 404 Elm St., Room 101 (Room 104 per the Clerk department page), Rockford, IL 61101
  • Tax Extension / Redemption phone: (815) 319-4253 https://wincoil.gov/departments/clerks-office/taxes https://wincoil.gov/departments/county-clerk (Note: the Clerk’s tax page gives the redemption mailing address as Room 101; the County Clerk department page lists Room 104 for the office. Both Elm Street, Rockford. needs_verification: the precise room for in-person redemption.)
• Accepted payment: CERTIFIED FUNDS only — cash, money order, or bank cashier’s check payable to Winnebago County Clerk. Payment by certified check must be the exact redemption amount; “a refund will not be issued for a payment over the total amount due.” Pending Take Notice fees must accompany redemption payments (in cash if paying in person, or as a separate certified check if mailing). https://wincoil.gov/departments/clerks-office/taxes
• Redemption periods: Per illinois §2 (35 ILCS 200/21-350):
  • General rule: 2½ years from date of sale.
  • 1 year for vacant non-farm land, properties with 7+ residential units, and commercial/industrial property.
  • Extendable by the certificate holder to a maximum of 3 years (35 ILCS 200/21-385). The Treasurer’s page confirms “redemption periods may be extended by certificate holders.” https://wincoil.gov/departments/treasurer/tax-information https://wincoil.gov/departments/treasurer/faqs
• Subsequent taxes (“subs”): The certificate holder may pay subsequent-year delinquent taxes and add them to the redemption amount at 12% per year or portion thereof (35 ILCS 200/21-355). Locally, subsequent tax payments require prior office approval and must be made in person — no mailed payments accepted (Treasurer tax-information page). https://wincoil.gov/departments/treasurer/tax-information
• Redemption contact:
  • Office: Winnebago County Clerk — Tax Extension / Redemption
  • County Clerk: Lori Gummow
  • Address: 404 Elm St., Rockford, IL 61101
  • Phone: (815) 319-4253
  • Hours: Mon–Fri, 8 a.m.–5 p.m. https://wincoil.gov/departments/clerks-office/taxes
• Local fees / deviations from state default: Redemption amount follows the state formula (certificate amount + penalty multiplier schedule + 12%/yr on sub-taxes + statutory fees) per illinois §2 (35 ILCS 200/21-355). needs_verification: Winnebago County-specific itemized fee schedule.

C3. Local Surplus / Excess Proceeds → framework: surplus-funds

Tax Sale Side (Indemnity Fund — no traditional surplus pool)

• No traditional surplus pool on the tax side. As explained on illinois §3, an Illinois annual tax sale generates no excess-proceeds fund — the tax buyer pays only the delinquency, not the property value. On non-redemption the buyer obtains a tax deed from the circuit court and captures any equity exceeding the taxes. Under the historical model (pre-HB4537) the former owner’s only remedy is the Indemnity Fund (35 ILCS 200/21-305). This mechanism is the one held unconstitutional by bell-v-pappas-2025; illinois §3 describes the pending HB4537 reform.
• Indemnity Fund — claim filing venue: A petition must be filed in the Circuit Court of the 17th Judicial Circuit, Winnebago County (the court that issued the tax-deed order), naming the Winnebago County Treasurer, as trustee, as respondent. (35 ILCS 200/21-305; see illinois §3.)
  • Clerk of the Circuit Court: Thomas A. Klein
  • Courthouse: Winnebago County Courthouse, 400 W. State St., Rockford, IL 61101 (temporary entrance at 403 Elm St., Rockford)
  • Phone: (815) 319-4500 (8:00 a.m.–4:30 p.m.) https://www.circuitclerk.wincoil.gov/
• Indemnity Fund fee source: $20.00 per parcel sold at the annual tax sale (sub-3-million-county rate; 35 ILCS 200/21-295). The Winnebago County Treasurer is the trustee of the Indemnity Fund.
• Indemnity Fund claim deadline: Within 10 years after the tax deed was issued (35 ILCS 200/21-305; see illinois §3).
• Indemnity Fund recovery cap: Owner-occupied residential (≤4 units) up to $99,000; other property — fair cash value minus mortgages/liens, if no fault/negligence. (35 ILCS 200/21-305; see illinois §3.)
• Indemnity Fund claim form: No Winnebago County-specific indemnity claim form was found on the retrieved official pages. The claim is a circuit-court petition (17th Judicial Circuit) citing 35 ILCS 200/21-305; practitioners typically draft a bespoke petition. needs_verification: whether a standardized Winnebago County / 17th Circuit indemnity-petition form exists.

Mortgage Foreclosure Surplus (genuine surplus pool)

• Genuine surplus exists when the Winnebago County Sheriff conducts a judicial foreclosure sale (online via ROUP.com) and proceeds exceed the judgment debt and fees. This surplus is held by the 17th Judicial Circuit Court under 735 ILCS 5/15-1512; former owners and junior lienholders petition the circuit court for distribution. → see sheriff-sale.
• Surplus filing venue: Winnebago County Circuit Court — Chancery Division
  • Clerk of the Circuit Court: Thomas A. Klein
  • Courthouse: 400 W. State St., Rockford, IL 61101
  • Phone: (815) 319-4500 https://www.circuitclerk.wincoil.gov/
• Surplus claim form: No dedicated “petition to distribute surplus / turnover surplus funds” form was found on the 17th Circuit Court Forms page (which lists Foreclosure Appearance/Answer, Motion to Stay Foreclosure Sale, Motion to Vacate Default Judgment of Foreclosure, and Residential Foreclosure Summons/Mediation forms). Statewide, the Illinois Supreme Court Commission on Access to Justice publishes a standardized “Petition to Turnover Surplus Funds”; per Illinois Legal Aid Online a claimant must generally wait 30 days after the final foreclosure order and appear in person with photo ID to collect. needs_verification: the specific 17th-Circuit local rule, designated chancery judge/courtroom, and processing timeline for surplus turnover in Winnebago County. https://www.circuitclerk.wincoil.gov/court-forms-winnebagocounty/ https://www.illinoislegalaid.org/legal-information/collecting-surplus-after-foreclosure-sale
• Unclaimed-funds list published? No Winnebago County tax-sale or foreclosure-surplus unclaimed-funds list was located on the retrieved official pages (unlike Kane County’s Sheriff Chancery-Surplus PDF). needs_verification: whether the Winnebago Sheriff or Circuit Clerk publishes a surplus/unclaimed list.
• Post-HB4537 surplus-equity mechanism: When HB4537 is signed and effective, a surplus-equity fund will be created for former owners of parcels lost to tax deeds. Winnebago County implementation details — needs_verification (bill not yet enacted; see illinois §3).

▸ For Investors / Operators — Winnebago runs a live, in-person annual tax sale (9%-cap bid-down-the-penalty, $500 deposit +$200 list, no phone/internet bids), and the certificate→tax-deed path runs through the 17th Judicial Circuit; see illinois §5b for this state’s court-issued “merchantable title” path (tax deeds excluded from the Marketable Title Act, so insurers commonly require quiet title) and §7b for surviving liens (IRS §7425, condo assessment lien junior to the tax lien).

▸ For Former Owners — there is no traditional tax-sale surplus pool in Illinois; on the tax side the remedy is the Indemnity Fund (35 ILCS 200/21-305) — a petition in the 17th Judicial Circuit naming the Winnebago County Treasurer as trustee, filed within 10 years of the tax deed. A genuine surplus pool exists only after a mortgage foreclosure (sheriff sale via ROUP), claimed by petition in the Circuit Court (C3 above). Redemption (paying off sold taxes) runs through the County Clerk’s Tax Extension office (C2).

C4. Offices & Contacts

(Note: In Winnebago County the County Clerk and Recorder functions are both held by Lori Gummow but operate as distinct offices/rooms — Clerk in Room 104, Recorder in Room 405. The Treasurer’s department page lists the Recorder at Room 205, which conflicts with the Recorder department page’s Room 405; Room 405 is taken from the Recorder’s own page. Sheriff’s name — needs_verification.)

C5. Local Procedure Notes

• Treasurer-sells / Clerk-redeems split: The Treasurer/Collector runs the annual tax sale; the County Clerk’s Tax Extension office computes and collects redemption payments and issues tax deeds. The Treasurer holds the Indemnity Fund as trustee. The 17th Judicial Circuit Court issues the annual judgment and order of sale and later (on non-redemption) the tax-deed order.
• Tax sale is IN-PERSON / live auction: Unlike counties using online tax-sale platforms (e.g., Cook County RAMS, or sealed-bid ILTaxSale.com tracks elsewhere), Winnebago’s annual tax sale is a live, called auction with no phone or internet bids accepted. Registered buyers must attend. https://wincoil.gov/departments/treasurer/tax-information
• Mortgage foreclosure sales are ONLINE (ROUP): By contrast, the Sheriff’s judicial foreclosure sales are conducted exclusively online via ROUP.com (winnebagocountysheriff-il.roup.com), compliant with Illinois SB2919; “on-site Sheriff Sales are no longer offered.” The Sheriff’s fee for conducting a foreclosure sale is $600.00. Civil Process: (815) 319-6150. https://winnebagosheriff.com/civil-process https://winnebagocountysheriff-il.roup.com/
• First-time buyer bank-letter requirement: First-time tax-sale buyers must provide a bank letter confirming credit capacity (Treasurer tax-information page).
• $500 deposit forfeiture: A registered buyer who fails to appear, or appears but does not actively bid, forfeits the$500 deposit to the county — a Winnebago-specific enforcement of attendance. https://wincoil.gov/departments/treasurer/tax-information
• Subsequent-tax payments in person only: Subsequent (“subs”) tax payments require prior office approval and must be made in person; no mailed sub payments are accepted.
• Single-bidder rule (statutory): Winnebago County’s population (~285,337) exceeds the 275,000 threshold of 35 ILCS 200/21-205, which mandates a county collector adopt a single-bidder rule prohibiting related entities from submitting multiple competing bids. needs_verification: Winnebago County’s specific single-bidder affidavit/registration text (not located on retrieved official pages; the statutory mandate applies by population — see illinois §11b).
• Sub-3-million county: Winnebago applies the $20/parcel indemnity fee schedule (35 ILCS 200/21-295), not the Cook County$80+5% schedule.

C6. Records Access

• Property tax inquiry / parcel search (Treasurer): https://taxes.wincoil.gov/ Winnebago County Treasurer Parcel Tax Details Inquiry — search by PIN (four-part), mobile-home number, address, or owner name; current and historical parcel information back to 2003.
• Assessment / parcel details (Supervisor of Assessments): https://assessor.wincoil.gov/search/ Search by PIN, address, or owner name; current and historical assessment data back to 2003.
• Tax payment portal: https://taxes.wincoil.gov/ (“View or Pay Bill” via the Treasurer site https://wincoil.gov/departments/treasurer).
• Recorder / deed search portals (Fidlar):
  • Direct Search (free, limited, no images): https://ilwinnebago.fidlar.com/ILWinnebago/DirectSearch/#/search
  • Tapestry (pay-as-you-go, $6.95/search +$1.00/printed page): https://tapestry.fidlar.com/TapestryEON/TapestryEON.WebSite/login
  • Laredo (commercial subscription): https://fidlar.com/laredo.aspx Recorder records-search page: https://wincoil.gov/departments/recorders-office/records-search
• GIS / parcel map (WinGIS): https://wingis.org/ Winnebago County Geographic Information System (serves Winnebago, Boone, Stephenson); property search with layers, markup/measuring tools, historic aerials. Office: 127 N. Wyman St., Suite 10, Rockford; (815) 319-4450.
• Sheriff foreclosure sales (ROUP online auction): https://winnebagocountysheriff-il.roup.com/

C7. Meta

• sources:
  • {type: county_official, url: “https://wincoil.gov/departments/treasurer/tax-information”, retrieved: 2026-06-02} # Tax sale: typically last week Oct/early Nov; live auction 9% cap bid-down; no phone/internet bids; $500 registration (applied to purchases, forfeited if no-show/non-bidder);$200 delinquent list; first-time buyers bank letter; 2.5yr/1yr redemption; subs require approval, in person only; certificate pickup in person (Michelle 815-319-4415); redemption via Clerk 815-319-4253
  • {type: county_official, url: “https://wincoil.gov/departments/treasurer/faqs”, retrieved: 2026-06-02} # End-of-October tax sale; bidding starts 9% per 6-month, may go to zero; certified letters in September + newspaper notice; after sale records move to County Clerk Tax Extension (815) 319-4253; 2.5yr / 1yr redemption
  • {type: county_official, url: “https://wincoil.gov/departments/treasurer”, retrieved: 2026-06-02} # Theresa Grennan, Treasurer appointed Jan 31 2025; 404 Elm St Room 205 Rockford IL 61101; (815) 319-4400; Mon-Fri 8a-5p; View/Pay Bill at taxes.wincoil.gov
  • {type: county_official, url: “https://wincoil.gov/departments/clerks-office/taxes”, retrieved: 2026-06-02} # County Clerk tax redemption: computes/collects payments, collects sold taxes from annual sale, issues tax deeds; certified funds only (cash/MO/cashier’s check payable to Winnebago County Clerk); exact amount, no refund of overpayment; pending Take Notice fees must accompany; mailing 404 Elm St Rm 101 Rockford IL 61101; (815) 319-4253; reference docs Tax Sale Redemption Periods / Guide to Delinquent Taxes
  • {type: county_official, url: “https://wincoil.gov/departments/county-clerk”, retrieved: 2026-06-02} # County Clerk Lori Gummow; 404 Elm St Room 104 Rockford IL 61101; Tax Extension/Redemption (815) 319-4253; Vital (815) 319-4250; Elections (815) 319-4252; Mon-Fri 8a-5p
  • {type: county_official, url: “https://wincoil.gov/departments/recorders-office”, retrieved: 2026-06-02} # Recorder Lori Gummow; 404 Elm St Room 405 Rockford IL 61101; (815) 319-4325; Mon-Fri 8a-5p
  • {type: county_official, url: “https://wincoil.gov/departments/recorders-office/records-search”, retrieved: 2026-06-02} # Records search: Direct Search (free), Tapestry ($6.95/search +$1/page), Laredo, WinGIS; recorder 404 Elm St; (815) 319-4444; Fidlar portal URLs
  • {type: county_official, url: “https://www.circuitclerk.wincoil.gov/”, retrieved: 2026-06-02} # Clerk of Circuit Court Thomas A. Klein, 17th Judicial Circuit; (815) 319-4500 (8a-4:30p); courthouse 400 W State St / temp entrance 403 Elm St Rockford IL 61101
  • {type: county_official, url: “https://www.circuitclerk.wincoil.gov/court-forms-winnebagocounty/”, retrieved: 2026-06-02} # Court forms: Foreclosure Appearance/Answer, Motion to Stay Foreclosure Sale, Motion to Vacate Default Judgment of Foreclosure, Residential Foreclosure Summons/Mediation; NO dedicated surplus-turnover form found; E-Filing referenced
  • {type: county_official, url: “https://winnebagosheriff.com/civil-process”, retrieved: 2026-06-02} # Sheriff foreclosure sales ONLINE via ROUP (winnebagocountysheriff-il.roup.com); on-site sales no longer offered; Sheriff fee $600; Civil Process (815) 319-6150, 8a-5p; 650 W State St Rockford IL 61102
  • {type: platform, url: “https://winnebagocountysheriff-il.roup.com/”, retrieved: 2026-06-02} # ROUP online foreclosure-sale platform for Winnebago County Sheriff (SB2919-compliant)
  • {type: county_official, url: “https://taxes.wincoil.gov/”, retrieved: 2026-06-02} # Treasurer Parcel Tax Details Inquiry: search by PIN (4-part), mobile home #, address, owner name; data back to 2003
  • {type: county_official, url: “https://assessor.wincoil.gov/search/”, retrieved: 2026-06-02} # Supervisor of Assessments Parcel Details: search by PIN, address, owner name; data back to 2003
  • {type: county_official, url: “https://wingis.org/”, retrieved: 2026-06-02} # WinGIS GIS/property search (Winnebago/Boone/Stephenson); layers, markup/measure tools, 1939 historic aerials; 127 N Wyman St Suite 10 Rockford; (815) 319-4450
  • {type: secondary, url: “https://hometaxsale.com/auction/il/winnebago”, retrieved: 2026-06-02} # Secondary: Nov 19 2024 tax lien auction; $500 deposit;$200 list fee; bidding starts 9% per 6-month may go to zero; site notes info may be outdated
  • {type: secondary, url: “https://www.illinoislegalaid.org/legal-information/collecting-surplus-after-foreclosure-sale”, retrieved: 2026-06-02} # IL surplus claim: Petition to Turnover Surplus Funds; 30-day wait after final order; appear in person with photo ID
• needs_verification:
  • Exact 2025/2026 annual tax-sale date. Reason: official Treasurer page says “last week of October or early November, dates to be determined by Treasurer”; only a secondary source (hometaxsale.com) gives the Nov 19 2024 prior-year date. Contact Treasurer (815) 319-4400.
  • In-person tax-sale venue/room within the County Administration Building. Reason: live auction confirmed but the specific room not stated on retrieved pages.
  • Winnebago County bundled per-parcel fee schedule (indemnity $20 + certificate + automation + sale-in-error fund + costs). Reason: not itemized on any retrieved Winnebago official page.
  • Specific local newspaper used for delinquent-list publication. Reason: FAQ says “a local newspaper” without naming it.
  • Redemption office room number (Clerk tax page lists Room 101 mailing; County Clerk department page lists Room 104). Reason: conflicting room numbers on two official pages.
  • Recorder office room number (Recorder page Room 405 vs. Treasurer page’s cross-reference Room 205). Reason: conflicting room numbers between two official pages; Room 405 taken from the Recorder’s own page.
  • Sheriff’s name. Reason: Civil Process page gives address/phone but the retrieved page did not name the current Sheriff.
  • Winnebago County / 17th-Circuit indemnity-fund petition form. Reason: no standardized form located; claim is a bespoke circuit-court petition under 35 ILCS 200/21-305.
  • 17th-Circuit mortgage-foreclosure surplus turnover procedure (local rule, designated chancery judge/courtroom, processing timeline). Reason: no surplus form on the Court Forms page; only statewide Illinois Legal Aid guidance retrieved.
  • Surplus / unclaimed-funds list publication by the Winnebago Sheriff or Circuit Clerk. Reason: no list located on retrieved official pages (unlike Kane County’s Sheriff Chancery-Surplus PDF).
  • Single-bidder affidavit text for Winnebago (statutory mandate applies by population >275,000 under 35 ILCS 200/21-205, but the county-specific affidavit was not located on retrieved pages).
  • Post-HB4537 surplus-equity mechanism for Winnebago County. Reason: bill passed May 2026, awaiting signature; see illinois §3.
• cross_links: illinois, right-of-redemption, surplus-funds, third-party-recovery-rules, treasurer-sale, sheriff-sale, bell-v-pappas-2025, tyler-v-hennepin-county, due-process-notice, bankruptcy-automatic-stay
• changelog:
  • 2026-06-02 — initial autoresearch population from Winnebago County Treasurer (tax-information page: live in-person 9%-cap auction, no phone/internet bids, $500 deposit +$200 list, first-time-buyer bank letter, subs in person only; FAQ page: end-of-Oct sale, certified letters + newspaper notice, 2.5/1-yr redemption), County Clerk taxes page (certified-funds-only redemption, Tax Extension 815-319-4253, tax-deed issuance), Treasurer/County Clerk/Recorder department pages (Grennan, Gummow), Circuit Clerk (Thomas A. Klein, 17th Judicial Circuit), Sheriff Civil Process (ROUP online foreclosure sales, $600 fee), and records portals (taxes/assessor.wincoil.gov, Fidlar Direct Search/Tapestry, WinGIS).

Disclaimer: This page is legal information, not legal advice. Tax-foreclosure law and county procedure change frequently. Verify every fact against the cited official sources and consult a licensed Illinois attorney before acting. Last verified: 2026-06-02.