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Illinois Final Paycheck Law & Calculator

Add your unpaid Illinois wages and accrued PTO to estimate your last-day total after tax.

$

$3,750.00

Gross final paycheck

Est. taxes: ~$1,297.51 (34.6%)

Estimated net take-home

Break down the PTO portion in detail →

Estimates only. PTO payout rights and tax withholding vary by state, employer policy, and individual circumstances. This is not legal, tax, or financial advice. Consult your state labor department or a qualified professional. See our methodology.

Researched & maintained by The PTO Payout Research Team Primary sources verified June 11, 2026 4.9/5 platform rating

Final Pay and Illinois PTO Payout Law

Understanding the illinois pto payout law is essential for any departing employee in the state. Under the Illinois Wage Payment and Collection Act (IWPCA), your final paycheck must combine any regular wages you earned but were not yet paid with a payout of your accrued, unused vacation hours. Use-it-or-lose-it forfeiture of earned time is not allowed in Illinois, and you have 3 to 10 years to claim unpaid final wages. This calculator pre-selects Illinois so your state tax estimate is built-in.

For the governing statute (reference: Illinois Wage Payment & Collection Act) and a full PTO breakdown, see the Illinois PTO payout guide and final paycheck rules by state. For more details, check out our in-depth article on the Illinois PTO Payout Law.

Illinois Use It or Lose It Vacation Rules

Many employers attempt to implement policies where employees lose their accrued time off at the end of the year or upon separation. However, under the rules for illinois use it or lose it vacation policies, this is strictly prohibited. Under the Illinois Wage Payment and Collection Act, use-it-or-lose-it policies that cause employees to forfeit earned vacation wages are strictly prohibited. Once vacation time is earned, it is considered wages under state law and cannot be taken away. While employers can enforce a reasonable cap on future vacation accruals, they cannot force you to forfeit hours already earned.

Illinois Paid Leave for All Workers Act & PLAWA vs PTO

Recent state legislation introduced the illinois paid leave for all workers act (PLAWA). It is critical for employees and employers to understand the key differences of plawa vs pto when employment ends. Under pto laws in Illinois, traditional accrued vacation/PTO must legally be paid out at termination. However, standard paid leave accrued strictly under PLAWA (up to 40 hours) is not required to be paid out upon separation unless the employer explicitly combines it with a vacation policy or promises a payout in the employee handbook. If both are combined in a unified PTO bank, the entire balance must be paid out.

When is your final paycheck due in Illinois?

SituationFinal paycheck deadline
If you are fired or laid offAt separation if possible, but no later than the next payday
If you quitAt separation if possible, but no later than the next payday

This deadline applies to your entire final paycheck, including any accrued PTO Illinois requires to be paid. Late or missing final pay can entitle you to penalties or interest under the IWPCA. If your employer holds your final pay, you can file an unpaid-wage claim with the Illinois Department of Labor.

Official Illinois Wage Claim Resources

If your employer holds your final paycheck or fails to pay you correct wages, you can contact the official state agency to get help:

Frequently asked questions

When is my final paycheck due in Illinois?

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Under the Illinois Wage Payment and Collection Act, if your employment ends in Illinois, your final paycheck—including any owed PTO payout—is due no later than your next regularly scheduled payday.

does a company have to pay out pto if you quit

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Yes. Under the Illinois Wage Payment and Collection Act (IWPCA), if it is earned vacation time in Illinois, it must be paid out in full regardless of whether the employee quits, resigns, or is fired.

How does the Illinois Paid Leave for All Workers Act affect PTO laws?

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When cashing out or separating, it's vital to clarify the distinction of plawa vs pto. Under Illinois pto laws, accrued vacation/PTO must legally be paid out at termination. However, standard paid leave accrued strictly under the illinois paid leave for all workers act (up to 40 hours) is not required to be paid out at separation unless the employer's written policy combines it into a vacation bank.

How is a final paycheck taxed in Illinois?

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Regular final paycheck wages are taxed normally. The PTO payout portion is supplemental wages taxed at a flat 22% federal rate, FICA taxes of 7.65%, and an estimated 4.95% Illinois state tax rate.