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You quit in Illinois — when is your final paycheck due?

Employers often tell departing employees that quitting forfeits the last paycheck, or that pay will arrive "when payroll gets to it". Neither is the law in Illinois.

Same rule on resignation: final compensation at separation if possible, otherwise by the next regularly scheduled payday.

Statute
820 ILCS 115/5 (Illinois Wage Payment and Collection Act); 115/14 (penalties)
If fired
Final compensation is due at the time of separation if possible; if it is not possible to calculate it then, it is due no later than the next regularly scheduled payday (820 ILCS 115/5).
If you resigned
Same rule on resignation: final compensation at separation if possible, otherwise by the next regularly scheduled payday.
Late-pay penalty
820 ILCS 115/14(a): damages of 5% of the underpayment per month it stays unpaid (2% per month where the underpayment is $200 or less), capped at 100%, plus a court-awarded attorney's fee and costs.
PTO
Illinois requires payout of earned, unused vacation only if the employer's written policy or contract provides for it; the policy is what a claim turns on.
Small claims limit
$10,000 for an individual
Last verified
2026-11-03 single source

What to put in the file before you write anything

  1. Your written resignation and the date it was delivered — email timestamps are enough, and the delivery date is what starts the clock.
  2. Whether you gave notice, and how much: some states shorten or lengthen the deadline based on notice, and the letter has to state it accurately.
  3. Your final timesheet or shift records for the last pay period, including any hours worked after you announced you were leaving.
  4. Any policy the employer says forfeits pay, PTO or commissions. Ask for it in writing — that request is itself part of the record.

What the letter does that a phone call cannot

A demand letter fixes three things at once: the amount, the date each item was due, and the date the employer was on notice. Every forum that can help you — the Illinois Department of Labor — Wage Payment and Collection, a small claims judge — starts from those three facts. The letter is built from 820 ILCS 115/5 (Illinois Wage Payment and Collection Act); 115/14 (penalties) and your own figures, so the deadline it states is the one that applies to your separation, not a generic thirty days.

If the amount fits inside $10,000, small claims court is usually faster than an agency queue; if it does not, the agency route and a demand first is the cheaper path.

Build the Illinois letter — $9.99 Free: calculate my deadline

Questions

Does giving notice change my final pay date in Illinois?

Same rule on resignation: final compensation at separation if possible, otherwise by the next regularly scheduled payday.

Can my employer hold my last check until I return equipment in Illinois?

Not lawfully as a condition of wages. Deductions and offsets are limited, and holding earned wages to force the return of property is the kind of self-help that turns a wage claim into a penalty claim.

Other situations in Illinois

being fired · a layoff · unused PTO · unpaid commissions · all Illinois rules

Reviewed 2026-11-03 against the sources listed on the Illinois page. This is a self-help document tool, not legal advice, and no outcome is guaranteed.