Illinois Statute of Limitations on Debt: How Long Can You Be Sued?

In Illinois, a creditor or debt collector generally has 10 years to sue you on a debt based on a written contract and 5 years to sue on an oral (unwritten) contract or open account. These deadlines come directly from the Illinois Code of Civil Procedure: 735 ILCS 5/13-206 sets the 10-year limit for written contracts, bonds, and written instruments, while 735 ILCS 5/13-205 sets the 5-year limit for unwritten contracts, open accounts, and most other civil claims for money. Once the applicable period runs out, the debt is "time-barred" — the lender or collection agency can no longer win a lawsuit against you for it, as long as you raise the expired deadline as a defense.

This is one of the most important consumer protections in Illinois debt law, and it is more generous to creditors than many states. Several states cap written-contract claims at 4 to 6 years; Illinois allows a full decade. Knowing which deadline applies to your specific debt — and exactly when the clock started — can be the difference between owing a court judgment and walking away free.

How long Illinois gives creditors to sue, by debt type

The deadline depends on how Illinois classifies the debt, not on what a collector calls it. Here is how the main categories generally break down:

• Written contracts (10 years): Personal loans, auto loans, mortgages, student loans, and other agreements signed in writing fall under 735 ILCS 5/13-206. The creditor has 10 years from the date of default to file suit.
• Oral contracts and open accounts (5 years): Agreements made by spoken word, and "open accounts" where the balance fluctuates with ongoing charges, fall under 735 ILCS 5/13-205. The creditor has 5 years.
• Promissory notes (often 6 years): A negotiable promissory note payable at a definite time is generally governed by Illinois's Uniform Commercial Code, 810 ILCS 5/3-118, which sets a 6-year limit. Non-negotiable notes may instead be treated as ordinary written contracts.

Where does credit card debt fit?

Credit card debt is the trickiest category in Illinois. Collectors often argue that a signed cardholder agreement makes the debt a written contract subject to the 10-year period. Consumers frequently argue the account is an unwritten or open account subject to the shorter 5-year period. Illinois courts have gone both ways depending on whether a complete written agreement governing the account is actually produced. Because the outcome turns on the specific paperwork in your case, do not assume a credit card balance is automatically subject to either deadline. If you are being sued, the burden is on the plaintiff to prove the existence and terms of a written agreement — and many debt buyers cannot.

When does the clock start ticking?

In Illinois, the limitations clock generally starts on the date of your last activity or default — typically the date of your last payment, after which you never brought the account current again. It does not restart simply because the original creditor sold the debt to a collection agency or debt buyer. The age of the debt is measured from your conduct on the original account, not from when a new collector acquired it.

This matters because debt buyers routinely purchase old, near-expired accounts for pennies on the dollar and then file suit hoping you will not realize the deadline has passed. Pulling your records to pin down the exact date of last payment is one of the most valuable things you can do.

The critical trap: a payment or written admission can RESTART the clock

This is the rule that catches the most Illinois consumers off guard. Under long-standing Illinois law (reflected in 735 ILCS 5/13-206 and related case law), making a partial payment on an old debt, or signing a new written promise or acknowledgment that you owe it, can reset the statute of limitations back to zero. A debt that was only months away from being time-barred can suddenly be enforceable for years again.

That is why collectors on aged accounts will press you to "just make a small good-faith payment" or to confirm details of the debt in writing. Even a modest payment, or a written statement acknowledging the balance, can revive an otherwise dead claim. Before you pay anything or sign anything on an old debt, find out whether the statute of limitations has already expired. If it has, a single payment can throw away a complete legal defense.

Note that an expired statute of limitations does not erase the debt itself or remove it from your credit report — the debt still legally exists. What expires is the creditor's ability to win a lawsuit and obtain a court judgment, garnish wages, or levy a bank account. Under the federal Fair Debt Collection Practices Act (FDCPA), a collector may still ask you to pay a time-barred debt, but filing or threatening a lawsuit on a debt the collector knows is time-barred can itself violate the FDCPA.

An expired deadline is a defense you must raise — it is not automatic

Here is the catch that costs Illinois consumers dearly: the statute of limitations is an affirmative defense. The court will not dismiss a time-barred lawsuit on its own. If you are sued and you ignore the summons or fail to appear, the creditor can obtain a default judgment against you even on a debt that was decades too old to sue on. The judge has no obligation to notice the deadline for you.

To use the protection, you must show up and raise it. That means filing a written appearance and answer by the deadline on your court summons, and specifically pleading that the claim is barred by the applicable statute of limitations. Once a money judgment is entered in Illinois, it is enforceable for years and can be revived, so the time to act is before judgment — not after.

Federal law works alongside these Illinois rules. The FDCPA governs how third-party collectors may contact you, the Fair Credit Reporting Act (FCRA) governs how the debt appears on your credit report, and federal law caps most wage garnishment at 25% of disposable earnings — though Illinois law provides its own, often more protective, garnishment and exemption limits.

How to enforce your rights and where to verify the law

If a collector contacts or sues you in Illinois:

• Do not pay or sign anything on an old debt until you confirm the date of last payment and whether the limitations period has run.
• Demand validation in writing within 30 days of a collector's first contact, as allowed under the FDCPA, and require proof of the written agreement and the chain of ownership.
• Respond to any lawsuit on time. File your appearance and answer by the date on the summons and raise the statute-of-limitations defense in writing.
• Keep records of every statement, payment date, and communication.

Because deadlines and classifications can turn on the precise facts of your account, verify the current law before acting. The Illinois Attorney General's Consumer Protection Division publishes guidance on debt collection and consumer rights and accepts complaints against abusive collectors. You can also read the statutes yourself through the Illinois General Assembly's website (735 ILCS 5/13-205 and 5/13-206). For a lawsuit, consult a licensed Illinois consumer-protection attorney or a local legal aid organization — this article is general information, not legal advice for your specific situation.

Official Illinois Sources

This page is based on Illinois law. Limits and deadlines change — verify the current details directly with the official Illinois sources below. This is general legal information, not legal advice.

• Illinois Attorney General - Consumer Protection — official Illinois agency.
• File a Consumer Fraud Complaint - Illinois Attorney General
• Consumer Fraud and Deceptive Business Practices Act (815 ILCS 505/)

Federal law also applies. Federal laws like the Fair Debt Collection Practices Act and Fair Credit Reporting Act protect you nationwide, on top of Illinois’s own rules.