Illinois Gives You 10 Years to Sue on a Written Contract, With Important Exceptions
Key Takeaways: In most cases, you have 10 years from the date of the breach to sue for breach of a written contract in Illinois under 735 ILCS 5/13-206. The clock usually starts when the breach happens, not when the contract was signed. Contract language can change the accrual date or shorten the deadline. Shorter deadlines may apply to oral contracts (generally 5 years), UCC sale-of-goods contracts (typically 4 years), implied indemnity and contribution claims (generally 2 years), and Illinois Franchise Disclosure Act claims (as short as 90 days). If an agreement’s essential terms are not in writing, a court may treat it as oral, which halves the filing window. Finding a breach late usually does not extend the deadline, because Illinois courts start the clock at the breach, apply the discovery rule to contract claims only on a case-by-case basis, and read tolling exceptions narrowly.
In most cases, you have 10 years from the date of the breach to sue for breach of a written contract in Illinois. This deadline comes from 735 ILCS 5/13-206, part of the Illinois Code of Civil Procedure. Some claims have much shorter deadlines, though, including sales of goods under the Uniform Commercial Code, oral agreements, certain indemnity claims, franchise disputes, and contracts that set their own shorter limitations period. The applicable deadline can determine whether your claim survives.
If you think a counterparty has breached a written agreement, or someone has accused your company of breaching one, getting your deadline right is the first step. King & Jones prepares contract cases for trial from day one. Call 312-372-4142 or contact us now to talk through your timeline.
What the Breach of Contract Statute of Limitations in Illinois Actually Says
The main rule is in 735 ILCS 5/13-206. It says that actions on bonds, promissory notes, bills of exchange, written leases, written contracts, or other evidences of indebtedness in writing must be filed within 10 years after the cause of action accrued. A written payment or new written promise to pay can restart the 10-year period. The statute begins with an important exception: “Except as provided in Section 2-725 of the Uniform Commercial Code.” That exception comes up often in business disputes.
Section 13-206 sits in Article XIII of the Illinois Code of Civil Procedure, 735 ILCS 5. These rules control when you can file a lawsuit in court. Deadlines for administrative or government claims work differently.
The 10-Year Deadline Covers More Than Traditional Contracts
The 10-year period generally applies to a wide range of written commitments. As FindLaw’s summary of Illinois limitations notes, it also covers collecting a debt on an account when there is a written agreement. If the agreement was only oral, the limit generally drops to 5 years under 735 ILCS 5/13-205. For businesses collecting unpaid invoices, whether the essential terms are in writing can cut the deadline in half.
When Does the Clock Start Running?
The limitations period usually starts when the breach happens, not when the contract was signed. So if a vendor signed a supply agreement in 2018 and breached it in 2022, you would generally have until 2032 to file under Section 13-206, not 2028. If the agreement is a UCC sale-of-goods contract, though, the 4-year rule would apply instead.
Finding the exact breach date is not always simple. Installment obligations, ongoing service commitments, and earnout payments can involve several separate breaches, each with its own accrual date. A contract claim ordinarily accrues when the breach occurs, not when you discover it. Illinois courts apply the discovery rule to contract claims only case by case, typically where the breach could not reasonably have been discovered, so do not count on a late discovery extending the deadline. Tolling doctrines such as fraudulent concealment (735 ILCS 5/13-215) are narrow and depend on the facts.
Contract Language Can Change the Accrual Date
Your agreement itself may say when a claim accrues, or set a shorter deadline. Illinois courts have enforced contract provisions that set the accrual date, and they generally enforce shorter contractual limitations periods if reasonable. Some agreements also waive the discovery rule, and Illinois courts have enforced those provisions, although equitable estoppel may still apply if the other side’s misrepresentations delayed your discovery of the claim. These clauses are common in construction contracts, insurance policies, and other complex commercial agreements. Check your contract for accrual, notice, limitations, or claim-period language.
💡 Pro Tip: Pull your full contract file now, including amendments, change orders, and side letters. A later amendment may contain an accrual or limitations clause that the original agreement did not have.
Does Your Agreement Qualify as a “Written Contract”?
Not every signed document gets the 10-year period. Illinois courts have generally held that all essential terms must appear in the document itself, without relying on outside (parol) evidence to fill the gaps. For written evidence of debt, that usually means the parties, the amount, and a promise to pay. This requirement comes from case law, not the statute’s text, and parties often dispute it.
If essential terms are missing from the writing, a court may treat the agreement as oral, which generally carries a 5-year limit. A string of emails, a handshake deal with a short invoice, or a term sheet missing key terms could all draw this challenge. In Portfolio Acquisitions, L.L.C. v. Feltman, for example, the Illinois Appellate Court held that monthly credit card statements were not complete agreements and did not qualify as written evidence of indebtedness, so the 10-year period did not apply. Businesses can protect themselves by putting key terms in the written agreement itself.
Common Documentation Gaps That Create Risk
These problems can put the 10-year period in question:
-
Payment amounts that appear only in phone calls or verbal side deals
-
Missing signatures or unclear identification of the parties
-
Pricing formulas that rely on outside documents the contract never incorporated
-
Changes agreed to orally but never written down
Shorter Deadlines That Can Override the 10-Year Rule
Several types of claims have shorter deadlines than the general written contract rule. If you miss one, you could lose a claim you thought you had years left to bring.
| Claim Type | General Deadline | Authority |
|---|---|---|
| Written contract | 10 years | 735 ILCS 5/13-206 |
| Oral contract | 5 years | 735 ILCS 5/13-205 |
| Sale of goods (UCC) | Typically 4 years (may be shortened by contract to no less than 1 year) | 810 ILCS 5/2-725 |
| Implied indemnity / contribution | Generally 2 years | 735 ILCS 5/13-204 |
| Franchise Disclosure Act claims | Earliest of 3 years, 1 year, or 90 days | 815 ILCS 705/27 |
Sale of Goods Contracts Under the UCC
The Uniform Commercial Code generally governs contracts for the sale of goods and typically sets a 4-year limitations period. Section 13-206 expressly defers to UCC Section 2-725, under which the parties can agree to shorten the period to as little as 1 year. Warranty claims usually accrue when the goods are delivered, even if the buyer finds the defect later, unless the warranty explicitly extends to future performance. When a contract covers both goods and services, courts typically look at its main purpose to decide which rule controls.
Indemnity Claims Depend on How the Claim Is Framed
Express indemnity claims based on a written contract generally fall under the 10-year limit. Implied indemnity and contribution claims, by contrast, generally have a 2-year limit under 735 ILCS 5/13-204, running from payment, service of process in the underlying action, or discovery, depending on the circumstances. In Travelers Casualty & Surety Co. v. Bowman, the Illinois Supreme Court applied the 10-year period to a written indemnity agreement that a contractor’s principals signed in favor of the surety on its performance bonds, instead of the 4-year construction-claim deadline under Section 13-214, and it held that Section 13-204’s 2-year limit applies only to implied indemnity. How you describe the claim in your complaint can matter a great deal.
Franchise Disputes Move Fast
Claims under the Illinois Franchise Disclosure Act, 815 ILCS 705/27, generally have a much shorter deadline. The franchisee must file by whichever of three dates comes first: 3 years after the violation, 1 year after becoming aware of facts reasonably suggesting a claim, or 90 days after receiving written notice disclosing the violation. Ordinary breach of franchise agreement claims may still follow contract deadlines, subject to any limitations clause in the agreement. King & Jones recently resolved an enforcement matter for a national franchisor whose franchisee had fallen out of compliance with core franchise agreement obligations. The case settled on confidential terms that strongly favored our client. Every matter is different, and past results do not guarantee future outcomes.
Practical Steps for a Business Contract Dispute
Acting early can help protect your options, whether you plan to bring a claim or defend one. A successful claim generally requires a valid and enforceable contract, your own substantial performance (or a legal excuse), a breach by the other party, and resulting damages. To review those elements, see what counts as a breach under Illinois law. Evidence fades over time, and witnesses change jobs.
Defendants should look at timing just as closely. A limitations defense may end a stale claim early. It depends on finding the correct accrual date, classifying the agreement correctly as written, oral, or UCC, and checking for any written payment or promise that may have restarted the clock.
💡 Pro Tip: Send a litigation hold notice inside your company as soon as a dispute looks likely. Keeping emails, invoices, and performance records can strengthen your position and help you avoid spoliation claims.
Frequently Asked Questions
1. What is the breach of contract statute of limitations in Illinois for written agreements?
Generally, it is 10 years from the date the cause of action accrued under 735 ILCS 5/13-206. Exceptions apply for UCC sale-of-goods contracts, contracts with shorter limitations clauses, and certain statutory claims.
2. How long do I have to sue on an oral contract in Illinois?
Oral contracts generally have a 5-year limitations period under 735 ILCS 5/13-205. Courts may treat written agreements that leave out essential terms as oral.
3. Can my contract shorten or change the deadline?
Yes, in many cases. Illinois courts generally enforce reasonable shorter limitations periods and provisions that set when a claim accrues.
4. Does discovering the breach late extend my deadline?
Usually not. Illinois courts generally do not apply the discovery rule to contract claims, and they read tolling exceptions such as fraudulent concealment narrowly.
5. Do franchise disputes follow the 10-year rule?
Claims under the Illinois Franchise Disclosure Act, 815 ILCS 705/27, generally have much shorter deadlines. In some cases the deadline can be as short as 90 days after written notice of the violation.
Protecting Your Rights Before Time Runs Out
The 10-year rule under 735 ILCS 5/13-206 is generous, but it has limits. UCC claims, oral agreements, implied indemnity, franchise claims, and contractual limitations or accrual clauses can all shorten your window. How fully your agreement is documented, and the exact date of the breach, may decide which deadline applies.
Whether you are pursuing a claim or defending against one, a timely review of your contract can help protect your position. A breach of contract statute of limitations Illinois lawyer at King & Jones can review your agreement and your timeline. Call 312-372-4142 or schedule your consultation today.
Disclaimer: This content is for informational purposes only and is not legal advice. Every case is unique, and results may vary. Consult an attorney about your specific circumstances.
