Yes — Illinois generally requires accrued unused vacation to be paid out when you leave. Under the Illinois Wage Payment and Collection Act (IWPCA § 5), accrued unused vacation is generally treated as earned wages that cannot be forfeited at termination. The rule is similar to California's and Massachusetts's, but the remedies differ — the IWPCA generally provides 5% per month statutory damages and attorney's fees on prevailing employees, rather than the multipliers found in Massachusetts. How any of this plays out depends on your situation, and these rules and figures can change.
Does Illinois require PTO payout when you leave?
Yes. Accrued unused vacation is generally owed at separation in Illinois, because the Illinois Department of Labor treats it as earned wages that cannot be forfeited at termination. The Illinois Wage Payment and Collection Act generally requires payment of all final compensation, and the IDOL reads that to include an accrued vacation balance. An employer may generally pause further accrual once you reach a cap, and a clear policy that caps accrual going forward — with notice and a reasonable opportunity to use the time — is generally enforceable; a policy that wipes an earned balance at separation or year-end generally is not. Paid leave under the state's Paid Leave for All Workers Act is treated separately, and local ordinances in Chicago and Cook County have their own rules. Statutory damages back the whole framework. The points that generally decide the question:
- Vacation is generally earned wages: The Illinois Department of Labor (IDOL) says that once vacation is accrued, it generally cannot be forfeited at termination. IWPCA § 5(a) generally requires payment of all "final compensation," which the IDOL treats as including accrued vacation.
- Cap on accrual generally permitted: Under IDOL guidance, an employer may cap accrual (pause further accrual at a maximum balance) but generally cannot retroactively forfeit earned vacation.
- Use-it-or-lose-it (limited): Illinois generally does not enforce policies that retroactively erase already-accrued vacation. Per IDOL guidance, a clear policy that caps accrual prospectively — with a reasonable opportunity to use the time and notice of the terms — is generally enforceable; a policy that wipes an earned balance at separation or year-end generally is not. Your employer's specific policy may differ.
- Sick leave (Paid Leave for All Workers Act, effective 2024): Paid leave under the state act generally does not require payout at termination unless the employer's policy promises payout. Local ordinances (Chicago, Cook County) have separate rules, so the local picture may differ.
- Commissions: Earned commissions are generally treated as wages owed under the IWPCA. Plan language typically controls the "earned" definition.
- Statutory damages: IWPCA § 14 generally provides a prevailing employee 5% per month statutory damages, plus attorney's fees and costs.
What can you say?
Nothing has to be said a particular way, though a written request that names the rule you are relying on tends to help. Three situations come up most often in Illinois: a plain request for payout of an accrued vacation balance, a response to an employer asserting that the balance was forfeited, and a note about the statutory damages that attach to unpaid final compensation. The useful details are the same in each — your accrued balance in hours, your final rate of pay, and the provision you are citing, which is generally the Illinois Wage Payment and Collection Act at 820 ILCS 115/5 for vacation as earned wages, and § 14 for damages and attorney's fees. A plain, unheated message generally gets further than an ultimatum, since it leaves room for a payroll correction. Wording people adapt to their own facts:
To raise vacation payout at termination, some people use language like:
"Under the Illinois Wage Payment and Collection Act (820 ILCS 115/5), my accrued unused vacation is earned wages owed at termination. My balance is [N] hours at my final rate of pay. Please include this in my final paycheck."
When the employer claims forfeiture, a common response is:
"Illinois law generally does not allow retroactive forfeiture of accrued vacation at termination. A policy capping prospective accrual is generally enforceable; a policy erasing earned vacation at separation generally is not. Please correct the final paycheck."
As a statutory-damages reminder, people sometimes note:
"Failure to pay all final compensation can trigger statutory damages of 5% per month under IWPCA § 14, plus attorney's fees. Please cure any underpayment by [date]."
What should you document?
What helps most is the paperwork that turns a vacation balance into a figure someone else can verify. Two of them do most of the work: your accrued balance as of your last day worked and your final rate of pay, both traceable to pay stubs or an accrual statement rather than to memory. The policy is the other half of the record — the version in effect at separation, any accrual cap it sets, and how the policy changed over your tenure — because Illinois generally draws its line between capping accrual going forward, which the IDOL treats as generally enforceable, and erasing a balance already earned, which it generally does not. Pay stubs showing accrual through the last day are what usually connect the two, and a policy's history of changes matters when a balance was built up under an earlier version. What people generally keep:
- The vacation/PTO policy in effect at separation, including any caps
- Your accrued balance at the last day worked
- Your final rate of pay
- Pay stubs showing accrual through the last day
- The policy's history of changes during your tenure
How do you escalate?
If an employer underpays or refuses to pay accrued vacation, the usual first move in Illinois is administrative rather than legal. The Illinois Department of Labor accepts wage claims online with no filing fee and generally does not require an attorney; it investigates, can order payment plus statutory penalties, and its decisions are generally enforceable through the courts. Larger or systemic claims more often go directly to court, since IWPCA § 14 generally allows a suit for actual damages, statutory damages, attorney's fees and costs. Workers in Chicago often have a second set of rules to check, because the Chicago Paid Sick Leave Ordinance and local final-pay rules may differ from the state picture. Which of these fits depends on the size of the underpayment and on your situation. The order people tend to follow:
- Many people file a wage claim with the Illinois Department of Labor. Online filing, no filing fee, and the IDOL generally does not require an attorney.
- The IDOL investigates and can order payment plus statutory penalties; its decisions are generally enforceable through the courts.
- For larger or systemic claims, IWPCA § 14 generally allows direct filing in court for actual damages, statutory damages, attorney's fees, and costs.
- Chicago workers often also check the Chicago Paid Sick Leave Ordinance and local ordinances on final pay, since those rules may differ.
Note: the IWPCA's remedies — including the mandatory attorney's fees the statute generally provides on prevailing claims — tend to make these cases attractive to plaintiffs' attorneys. Many people find that a clear demand letter referencing § 14 resolves vacation-payout disputes quickly.
Official sources
- Illinois Department of Labor — Wage Payment and Collection Act
- Illinois Department of Labor — Vacation FAQ
- Illinois Department of Labor — Fair Labor Standards Division