In Illinois, earned but unused vacation is treated as wages, and your employer must pay it out when you leave a job. Under the Illinois Wage Payment and Collection Act (IWPCA, 820 ILCS 115), the monetary equivalent of all earned vacation that you have not used must be included in your final compensation and paid no later than the next regularly scheduled payday after your last day. This applies whether you quit, are laid off, or are fired. Just as importantly, Illinois does not allow true "use-it-or-lose-it" policies that wipe out vacation you have already earned. An employer can put limits on how much you accrue going forward, but it cannot force you to forfeit vacation time you have already banked.
The core Illinois rule: earned vacation is wages
The IWPCA is the central law here. It defines "wages" broadly and specifically includes earned vacation in "final compensation" owed at separation. Section 5 of the Act (820 ILCS 115/5) states that whenever a contract of employment or an employer's policy provides for paid vacation, and an employee is separated without having taken all vacation earned to that point, the unused vacation must be paid as part of the final wages. The Illinois Department of Labor (IDOL) enforces this rule and has issued regulations interpreting it at 56 Illinois Administrative Code Part 300.
This is a meaningful contrast with federal law. The federal Fair Labor Standards Act (FLSA) sets a $7.25 federal minimum wage and the 40-hour weekly overtime standard, but it says nothing about paid vacation or PTO. Under the FLSA, an employer is not required to offer vacation at all, and is not required to pay out unused vacation when you leave. So whether you get a payout depends entirely on state law and your employer's policy. Illinois is one of the states that protects earned vacation as wages, which puts it on the more employee-friendly side of this issue.
Illinois bans use-it-or-lose-it forfeiture of earned time
A "use-it-or-lose-it" policy says that if you do not use your vacation by a certain date, you forfeit it with no payout. Illinois law does not permit forfeiture of vacation that has already been earned. IDOL's regulations make clear that an employment policy or agreement providing for forfeiture of earned vacation upon separation violates the Act. In plain terms: once you have earned the vacation under your employer's accrual schedule, it is your money, and a policy cannot take it back.
What an employer can lawfully do is cap accrual. For example, a policy may say you stop accruing new vacation once your balance reaches a set maximum (such as 1.5 times your annual accrual) until you use some of it. That is a prospective limit on future earning, not a forfeiture of time already banked, and Illinois courts and IDOL have treated reasonable accrual caps as permissible. The key distinction is timing: rules that limit what you earn going forward are generally allowed; rules that erase vacation you already earned are not.
How an employer's written policy controls the details
Illinois law guarantees that earned vacation is paid out, but the written policy or employment agreement controls how vacation is earned in the first place. Your policy can define:
The accrual rate - for example, hours earned per pay period or a lump grant on a certain date.
Whether there is an eligibility or waiting period before new employees begin accruing.
A reasonable cap on the maximum balance you can accrue.
The rate of pay used to value the payout (typically your final regular rate).
Because the policy defines what counts as "earned," reading it carefully matters. If a policy front-loads a full year of vacation on January 1 but you leave in June, the policy language and IDOL interpretation determine whether you are owed the full grant or a prorated share. Where a policy is silent or ambiguous, IDOL generally resolves the question in favor of paying out vacation the employee has reasonably earned.
What about PTO and the Paid Leave for All Workers Act?
Many Illinois employers now use a single "PTO" bank instead of separate vacation and sick categories. If that PTO functions as vacation - time you accrue and can take for any reason - it is generally treated like earned vacation and must be paid out at separation under the IWPCA.
Separately, Illinois enacted the Paid Leave for All Workers Act, effective January 1, 2024, which lets most employees earn up to 40 hours of paid leave per year usable for any reason. Importantly, paid leave provided only to satisfy that Act does not have to be paid out at separation unless the employer credits it to a vacation or PTO account that already requires payout. So the payout question often comes down to how the employer structures and labels the time. If your time is genuinely vacation or all-purpose PTO, expect a payout; if it is strictly statutory paid leave under the 2024 Act, payout may not be required.
How to enforce your right to a payout
If your former employer does not pay your earned vacation, you have options:
Ask in writing first. Send a short, dated request to HR or payroll citing your accrued balance and the IWPCA requirement to include earned vacation in final compensation. Keep a copy.
Gather records. Collect pay stubs, the written PTO/vacation policy, your offer letter or handbook, and any screenshots showing your accrued balance.
File a wage claim with IDOL. The Illinois Department of Labor accepts wage claims under the IWPCA. There are filing deadlines, so do not wait - act promptly after the missed payday.
Consider an attorney. The IWPCA allows successful employees to recover the unpaid wages plus statutory damages and attorney's fees in court, which is why many wage-and-hour lawyers will review these cases.
Retaliation for asserting your wage rights - such as demanding a vacation payout - is prohibited under Illinois law, so an employer cannot lawfully punish you for filing a claim.
Where to verify the current rule
The authoritative source is the Illinois Department of Labor (IDOL), which administers the Illinois Wage Payment and Collection Act and publishes guidance and the wage-claim process. The statute itself is 820 ILCS 115, and the implementing rules are in Title 56 of the Illinois Administrative Code. Because agencies update guidance and dollar thresholds over time - and because the minimum wage and certain figures change - confirm any current numbers directly with IDOL before relying on them. As of 2026, Illinois's state minimum wage is higher than the $7.25 federal floor; check the IDOL website for the exact current rate. When in doubt about whether your specific PTO arrangement must be paid out, IDOL is the office to contact.
Official Illinois Sources
This page is based on Illinois employment law. Rules and figures change — verify the current details directly with the official Illinois sources below. This is general legal information, not legal advice.
Federal law and local ordinances may also apply. Federal laws like the Fair Labor Standards Act set a national floor, and your city or county may add protections (such as a higher local minimum wage or paid sick leave). Check both alongside Illinois state law.
Frequently asked questions
Does my Illinois employer have to pay out my unused vacation when I leave?
Yes. Under the Illinois Wage Payment and Collection Act, earned but unused vacation is treated as wages and must be included in your final compensation, paid no later than the next regularly scheduled payday after you leave - whether you quit, are laid off, or are fired.
Are use-it-or-lose-it vacation policies legal in Illinois?
No, not for vacation you have already earned. Illinois prohibits policies that force you to forfeit earned vacation. An employer may cap how much you accrue going forward, but it cannot erase time you have already banked.
Does the Illinois Paid Leave for All Workers Act have to be paid out when I leave?
Generally no. Paid leave provided only to satisfy the 2024 Paid Leave for All Workers Act does not have to be paid out at separation unless the employer credits it to a vacation or PTO account that already requires payout. Vacation or all-purpose PTO, by contrast, must be paid out.
What can I do if my Illinois employer refuses to pay my accrued vacation?
Request payment in writing, gather your pay stubs and written policy, and file a wage claim with the Illinois Department of Labor. The IWPCA also lets employees recover unpaid wages plus statutory damages and attorney's fees through court.
Can an Illinois employer cap how much vacation I accrue?
Yes. A reasonable accrual cap that stops you from earning more vacation once you hit a maximum balance is allowed, because it limits future earning rather than taking away time you have already earned.
This article is general legal information, not legal advice, and may not reflect the most current law or the law in your jurisdiction. Laws vary by state and change over time. For advice about your specific situation, consult a licensed attorney.
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