Illinois Tax Lien Redemption Period: Deadlines, Costs, and Notices

The Illinois tax lien redemption period runs from one year to two and a half years after the tax sale, depending on what kind of property you own. Redeem inside that window by paying the county clerk the certificate amount plus a penalty that grows every six months, and the tax buyer loses all claim to your property. Miss it, and the buyer can ask a court to hand them the deed.

How Long You Have To Redeem

The standard redemption period is two and a half years from the date of the tax sale for residential property with six or fewer units and for farmland.¹ Several property types get only one year:

Vacant non-farm property, including empty lots.
Buildings with seven or more residential units.
Commercial or industrial property.

The certificate holder can extend the deadline, but never past three years from the sale date. Any extension is set out in a written notice filed with the county clerk.² Call your county clerk to confirm the exact expiration date for your parcel; that date, not your own count from the sale, is what governs.

You don’t have to be the record owner to redeem. Anyone with a legal or equitable interest in the property qualifies, including mortgage holders, contract buyers, and lienholders. The interest doesn’t need to be recorded. The one exception is undisclosed beneficiaries of an Illinois land trust, who cannot redeem.¹

What Redemption Costs

Three amounts add up to your total:

The certificate amount, covering the original delinquent taxes, special assessments, interest, and sale costs the tax buyer paid.
The accrued penalty, calculated as a percentage of the certificate amount.
Any subsequent taxes and special assessments the tax buyer paid on the property after the sale.

How the Penalty Grows

At the tax sale, buyers compete by bidding the lowest penalty percentage they’re willing to accept, from a ceiling of 18% down to 0%.³ The winning bid becomes the “penalty bid” that drives your redemption cost, and it multiplies every six months:

Within 6 months: 1× the penalty bid
6 to 12 months: 2× the penalty bid
12 to 18 months: 3× the penalty bid
18 to 24 months: 4× the penalty bid
24 to 30 months: 5× the penalty bid
30 to 36 months: 6× the penalty bid

An example makes the math concrete. Say a tax buyer paid $5,000 at a 9% penalty bid. Redeem at ten months and you’d owe the $5,000 plus an 18% penalty (2 × 9%), or $900 on top, plus any subsequent taxes.² Wait two years and the penalty jumps to 36% of the certificate, or $1,800. Every six months you delay can cost hundreds or thousands of dollars more.

When the County Holds the Certificate

When no private buyer purchases the taxes, the county acquires the certificate. For properties the county purchased before January 1, 2024, the penalty is a flat 12% per six-month period regardless of any bid. For county-held certificates acquired on or after that date in most counties, the standard penalty bid structure applies.²

Cook County has its own rule because it is the only Illinois county with more than three million residents. For certificates that Cook County acquires as trustee on or after January 1, 2024, the penalty accrues at 0.75% per month rather than on the six-month graduated schedule.² That’s 9% a year, considerably less than a private buyer would charge. The deadline itself doesn’t change.

How To Redeem

You don’t file anything in court and you don’t need a lawyer. After a tax sale, delinquent tax collection moves from the county treasurer to the county clerk, and the clerk’s office processes redemptions directly.⁴

Request a redemption estimate from the county clerk. You’ll need the Permanent Index Number (PIN) from your tax bill; many counties post estimate tools online.
Pay the full amount to the clerk. Most counties require the entire redemption amount in a single payment.
Keep the receipt. Once payment is processed, the lien is immediately removed and the tax buyer loses all interest in the property. The clerk mails a redemption receipt as proof.

The date that matters is the day the clerk receives payment, not the day you mail it. Don’t cut it close.

Payment Plans

Private tax buyers generally expect a lump sum. When the county itself holds the certificate, however, the county clerk has authority to set up a payment plan during the redemption period, and the clerk can waive penalty charges when you keep to the plan.² Not every county offers plans even though the law allows them. Peoria County, for example, has stated it does not accept partial payments.⁴ Ask your clerk’s office directly and ask early.

If You Receive a Take Notice, the Clock Is Nearly Up

Between three and six months before the redemption period expires, the tax buyer must send a formal “Take Notice” to the property owner, anyone occupying the property, all parties with a recorded interest (including mortgagees), and any other interested parties.⁵ It identifies the property, states the sale date, gives the redemption expiration date, and warns that a tax deed petition has been or will be filed. It must appear in at least 10-point type and follow a statutory form. Treat it as an urgent deadline.

What Happens If You Don’t Redeem

Once the redemption period ends without payment, the tax buyer petitions the circuit court for a tax deed. The court will grant it only if the buyer proves the redemption period expired without redemption, all subsequent taxes and special assessments were paid, every required notice was properly served, and every statutory requirement was met.⁶ If the buyer skipped paying subsequent taxes, they cannot get a deed.

Courts apply a strict compliance standard to the notice requirements. Deficiencies in the Take Notice or failure to serve every required party can be grounds to deny the deed. For county-held certificates, the county can cure a defective notice by delivering a corrected version to the clerk; when that happens, the redemption period restarts from the date the corrected notice was delivered, giving you additional time.⁷

Bankruptcy Does Not Reliably Pause the Deadline

Filing for bankruptcy triggers an automatic stay on most creditor actions, but whether the stay pauses the tax redemption clock is unsettled. Most federal courts have held it does not. Instead, federal law gives you the later of the original redemption deadline or 60 days after the bankruptcy filing.⁸ Sixty days is not much room if your deadline is about to run. A minority of courts have held that the stay does fully pause the clock, but you shouldn’t count on that outcome. In Chapter 13, some Illinois courts have allowed debtors to fold the tax buyer’s lien into a repayment plan. If bankruptcy is part of your plan to save the property, talk to an attorney before the redemption deadline passes, not after.

1
Justia Law. Illinois Code 35 ILCS 200 – Title 7 Tax Collection
2
Illinois General Assembly. Illinois Code 35 ILCS 200 – Property Tax Code Redemption Provisions
3
DuPage County, Illinois. DuPage County Tax Redemption Process
4
Peoria County, IL. Tax Redemption
5
FindLaw. Illinois Code 35 ILCS 200/22-10
6
Illinois General Assembly. Illinois Code 35 ILCS 200/22-40
7
Illinois General Assembly. Illinois Code 35 ILCS 200/22-5 – Notice of Sale and Redemption Rights
8
Office of the Law Revision Counsel. 11 U.S. Code 108 – Extension of Time