This page covers PTO carryover and year-end rollover rules in Illinois for 2026 — including what your employer can and cannot do with your unused balance, how accrual caps differ from forfeiture, and practical steps to protect your earned time.
Can Your Employer Enforce Use-It-or-Lose-It in Illinois?
Forfeiture clauses are heavily restricted. Employers must honor handbook language on carryover.
Accrual Caps vs. Forfeiture — Critical Difference
| Policy type | Legal in Illinois? | What it means for you |
|---|---|---|
| Accrual cap | Yes — always legal | You stop earning new PTO at the cap, but existing balance stays intact |
| Use-it-or-lose-it (with advance notice) | Not enforceable — earned PTO is treated as wages in this state | Unused PTO forfeited at year-end if policy clearly stated this before PTO was earned |
| Retroactive forfeiture | Not allowed anywhere | Employer cannot zero out PTO you already earned without prior written notice |
PTO Payout at Separation in Illinois
Statute: Illinois Wage Payment and Collection Act (820 ILCS 115)
Accrued vacation is wages. Employers must pay out vacation per their written policy. If the policy promises payout, it is legally binding.
See full details: Illinois PTO Payout Laws
Paid Sick Leave Carryover in Illinois
Illinois Paid Leave for All Workers Act (2024): 1 hour per 40 hours worked, up to 40 hours per year.
Note: Sick leave and vacation/PTO carryover are governed by separate rules. In most states with mandatory paid sick leave, unused sick hours must carry over year to year — even if vacation hours do not.
Year-End PTO Planning Checklist for Illinois Employees
- Check your balance in November — log into your HR portal or check your last pay stub
- Review your handbook year-end policy — look for "forfeiture date," "carryover cap," "rollover maximum," or "December 31 deadline"
- Calculate how many days you need to use — use our hours-to-days calculator
- Request time off before the deadline — note that your employer can deny requests for staffing reasons
- If policy changed mid-year — confirm in writing what happens to PTO earned before the policy change date
Frequently Asked Questions — Illinois PTO Carryover
Can my employer change the carryover policy mid-year in Illinois?
For future accrual, yes — with advance written notice. For PTO already earned, it depends on state law. Forfeiture clauses are heavily restricted. Employers must honor handbook language on carryover.
What happens to my carryover PTO if I leave in Illinois?
Accrued vacation is wages. Employers must pay out vacation per their written policy. If the policy promises payout, it is legally binding. Use our payout calculator to estimate your separation value.
Does unused sick leave carry over in Illinois?
Illinois Paid Leave for All Workers Act (2024): 1 hour per 40 hours worked, up to 40 hours per year. Sick leave carryover rules are separate from vacation/PTO rules.
Resources
Track your balance with our accrual calculator and rollover calculator. For official Illinois guidance, contact: Illinois Department of Labor.