DeKalb County, Illinois Tax Sales

Counties / Illinois counties / DeKalb County

Quick answerDeKalb County, Illinois follows Illinois tax sale law: the state sells tax lien certificates for delinquent property taxes. Rate / penalty: Penalty bid down from a statutory maximum of 9% per 6-month period (18% annualized). Redemption: Generally 2.5 years from the date of sale; 1 year for vacant non-farm property, commercial or industrial property, and property with a structure of 7… LienToDeed is verifying this county's own sale-list source; the state rules below are the law that governs its sales.

How tax sales work in DeKalb County, Illinois

Illinois law controls every tax sale in DeKalb County — the county runs the sale, but what is sold, what it pays and how long the owner can redeem are all set by the state:

What Illinois sells	Tax lien certificates
Interest / penalty	Penalty bid down from a statutory maximum of 9% per 6-month period (18% annualized); the winning (lowest) penalty percentage is applied to the certificate amount at sale and again every 6 months thereafter (35 ILCS 200/21-215, as reduced from 18% per 6-month period by P.A. 102-0363; 35 ILCS 200/21-355). Subsequent taxes paid by the buyer earn 12% per year.
Redemption period	Generally 2.5 years from the date of sale; 1 year for vacant non-farm property, commercial or industrial property, and property with a structure of 7 or more residential units (certificates issued on or after January 1, 2024, per 35 ILCS 200/21-350 as amended by the 103rd General Assembly). The certificate holder may extend the period, up to a maximum of 3 years (35 ILCS 200/21-385).
When sales happen	Annual tax sale held by each county collector, typically in the fall (roughly October-December; Cook County's annual sale for tax year 2023 was scheduled December 15, 2026). A separate biennial scavenger sale covers parcels delinquent over multiple years in Cook County.
Governing law	Illinois Property Tax Code, 35 ILCS 200/21 (esp. 21-215 penalty bids, 21-350 redemption, 21-355 amount of redemption) and 35 ILCS 200/22 (tax deeds)
County (Census)	DeKalb County — county, Illinois · FIPS 17037

High sale-in-error risk: a buyer whose sale is declared in error gets a refund but generally no penalty, and strict statutory notice deadlines govern the later tax-deed petition. Many older secondary sources still cite the pre-2022 maximum of 18% per 6 months and the pre-2024 2-year period for non-residential property; both are superseded.

The process, step by step

1 · The list publishes. Illinois sales run on this rhythm: Annual tax sale held by each county collector, typically in the fall (roughly October-December; Cook County's annual sale for tax year 2023 was scheduled December 15, 2026). The county's sale list — the parcels actually being sold — is published ahead of the sale by the county office that runs it, and in many Illinois counties also through the state's sale channels (Cook County: RealAuction via cooktaxsale.com. Most other counties: county-run automated bidding systems, historically in-person at the collector's office (bidders are generally required to attend under 35 ILCS 200/21-205); no single statewide platform.).

2 · Register and fund — before sale day. Registration and bidder deposits are handled by the county or its sale platform and close before the sale, in most counties the day before. The amount and ID requirements are set in the county's own sale notice, not in state law — confirm them on the current published notice before you rely on them.

3 · Research every parcel. Compare the taxes owed against assessed value and recorded sales, check property type and occupancy signals, and price in the state's redemption rule above: it decides whether your money comes back with the statutory return, or your path runs to the property itself.

4 · Bid the number you wrote down. Set your max bid (deeds) or floor rate (liens) from the research, before the sale opens. The state's return is paid on the tax obligation — not on whatever extra a bidding war adds on top of it.

5 · After the sale. Owners redeem inside the window above; lists change as they do. Track the parcels you care about, because a watched property redeeming or withdrawing is information you want before — not after — you wire a deposit for the next sale.

What DeKalb County publishes — and our verification status

Under Illinois law, the county publishes its sale list as a public record ahead of each sale. What we have not done is guess at this county's exact channel: which office posts the list, in what format, and on what posting schedule are being verified county by county against the county's own publications. Until that check is complete, this page carries the verified state rules — not a live DeKalb County sale list — and says so plainly.

Coverage status: DeKalb County — verification in progress

Alerts activate county by county as each county's published list is verified. Join the Illinois watchlist and you are first in line when DeKalb County alerts switch on — plus you get the free Illinois sale calendar and law guide today.

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County facts (name, state, FIPS 17037) from the US Census Bureau county list; state rules verified 2026-10-30 — sources on the Illinois law page. Educational only, not investment advice.