Illinois Pay Stub Rules: What Employers Must Show, Keep and Provide
Since January 1, 2025, Illinois law spells out exactly what every pay stub must contain, how long employers must keep copies, and how fast they must hand them over when asked. Here is the full rulebook — plus a line-by-line guide to reading the stub itself.
The Pay Stub Protection Act
For decades, Illinois required little more than an itemized statement of deductions with each paycheck. That changed with the Pay Stub Protection Act, which amended the Illinois Wage Payment and Collection Act (820 ILCS 115) and took effect on January 1, 2025. The amendment turned the pay stub from a courtesy into a defined legal document, with content requirements, retention rules, response deadlines and penalties.
The practical effect is that every Illinois employee now has a right to a complete, verifiable record of each pay period — and a right to get copies of old records for years after leaving a job. Employers that treated pay stubs casually, or whose payroll software omitted hours or year-to-date figures, have had to catch up.
What every Illinois pay stub must show
Under the amended Act, each pay stub must state, for its pay period:
- Hours worked;
- Rate of pay;
- Overtime pay and overtime hours, shown separately from regular time;
- Gross wages earned in the period;
- Every deduction, itemized — each tax, benefit premium, retirement contribution and garnishment on its own line; and
- Year-to-date totals of wages and of deductions.
The year-to-date requirement is the quiet workhorse of the list. Running totals are what let you verify that your Social Security withholding stops at the wage base, that a raise actually flowed through, or that a payroll error in March did not silently compound through December. If your stub's math looks off, the walkthrough of how much tax comes out of a paycheck shows what each withholding line should roughly be.
Electronic pay stubs satisfy the law, provided the employee can access them and obtain copies on request. Paper is not required — but access is.
Getting copies: requests, deadlines and retention
The Act pairs the content rules with an access regime. An employer must keep a copy of every pay stub for at least 3 years after the date of payment, and that duty survives the end of employment. Within that window, employees can demand copies:
| Current employee | Former employee | |
|---|---|---|
| Requests allowed | 2 per year | 1 per year, for up to 3 years after separation |
| Employer's deadline | 21 calendar days | 21 calendar days |
| Written request? | Employer may require it | Employer may require it |
| Format of copies | Employee chooses physical or electronic | Employee chooses physical or electronic |
If a former employee will lose access to an electronic pay stub system more than a year before the 3-year retention period ends — the normal case when a company uses a payroll portal — the employer must offer, by the end of the final pay period, to furnish the last year of pay stubs, and must record both the offer and the employee's response. If you are leaving a job, say yes: downloading a year of stubs takes minutes and saves a formal request later.
An employer that violates any of this — a non-compliant stub, a blown 21-day deadline, purged records — faces a civil penalty of up to $500 per violation, payable to the Illinois Department of Labor, on top of the Wage Payment and Collection Act's existing remedies for unpaid wages.
How to read your Illinois pay stub
Payroll systems abbreviate aggressively, and the same deduction can carry three different labels at three different companies. This table decodes the lines that appear on nearly every Illinois stub, and — the part that matters for your taxes — which ones reduce your taxable wages.
| Label on the stub | What it is | Reduces taxable wages? |
|---|---|---|
| Gross Pay / Total Earnings | Everything earned this period before any deduction: regular wages, overtime, bonuses, commissions | Starting point |
| FED, FIT or Fed W/H | Federal income tax withheld, based on your Form W-4 | No — it is a tax, not a deduction |
| IL, SIT or State W/H | Illinois income tax withheld at the flat 4.95%, after IL-W-4 allowances | No |
| FICA-OASDI or SS | Social Security tax: 6.2% of wages up to the $184,500 wage base for 2026 | No |
| FICA-HI or Med | Medicare tax: 1.45% of all wages, no cap | No |
| Sec 125 or Pre-Tax Med | Health, dental and vision premiums through a Section 125 cafeteria plan | Yes — for income tax and FICA |
| 401(k) | Traditional retirement deferral | Yes for federal and Illinois income tax; no for FICA |
| Roth | Roth 401(k) contribution, made after tax | No — taxed now, tax-free later |
| YTD columns | Running year-to-date totals of each earning and deduction | Verification, not a deduction |
| Net Pay | What actually reaches your bank account | The end result |
If any line looks wrong, compare the stub against the Illinois paycheck calculator, which reproduces the federal, Illinois and FICA math for a given salary and W-4. Hourly workers juggling overtime and multiple rates can do the same with the hourly paycheck calculator.
Pre-tax versus after-tax, and why the order matters
Deductions fall into two families. Pre-tax deductions come out before taxes are computed, shrinking the wage base the taxes apply to. After-tax deductions — Roth contributions, union dues, wage garnishments, parking — come out of what is left and save you nothing on tax.
Within the pre-tax family there is a hierarchy worth knowing. A traditional 401(k) deferral escapes federal and Illinois income tax but still pays FICA: Social Security and Medicare are charged on the money before it enters the plan. Section 125 cafeteria plan items — health, dental and vision premiums, plus FSA and HSA contributions run through the plan — escape income tax and FICA. Dollar for dollar, a Section 125 premium therefore saves 7.65% more than the same dollar deferred into a 401(k). That is why the same $200 deduction can shrink your net pay by different amounts depending on which box it sits in.
What your employer may deduct at all
Illinois does not leave deductions to the employer's discretion. Under Section 9 of the Wage Payment and Collection Act, an employer may deduct from wages only when the deduction is:
- required by law — income tax withholding and FICA;
- for the employee's benefit — insurance premiums, retirement contributions and similar items;
- expressly authorized in writing by the employee, given freely at the time the deduction is made — a blanket consent signed at hiring does not cover a deduction invented two years later; or
- made under a valid court order, such as a wage deduction order for a judgment creditor or a child support withholding order.
This is the rule that stops an employer from unilaterally docking pay for a broken laptop, a cash-register shortage or an overpayment it only just noticed. Court-ordered deductions have their own strict limits on how much of a paycheck can be taken — the Illinois wage garnishment calculator applies the statutory tests to your numbers.
How often you must be paid — and when final pay is due
The Wage Payment and Collection Act also fixes the payroll calendar. Most employees must be paid at least semi-monthly. Wages for a semi-monthly or bi-weekly period must be paid within 13 days of the end of the period; weekly wages within 7 days; daily wages within 24 hours. Executive, administrative and professional employees — broadly, the classic salaried exempt categories — may be paid monthly, with wages due within 21 days of the period's close. Employers' broader obligations around withholding, unemployment insurance and remittance schedules are covered in the guide to Illinois payroll taxes.
When employment ends, for any reason, final compensation is due at the time of separation where possible, and no later than the next regularly scheduled payday. That includes earned wages, earned commissions and the monetary value of unused, earned vacation. An employer may not hold a final check hostage for equipment returns or exit paperwork.
Pay stubs for State of Illinois employees
Employees paid through the Illinois Comptroller do not receive stubs from a private payroll vendor. Their earnings statements live in the Comptroller's electronic earnings statement portal at mypaystub.illinoiscomptroller.gov, where each pay period's statement can be viewed and downloaded after a one-time registration. Many agencies also route employees through ePASS, the electronic pay stub system, which serves the same records. The statements themselves follow the same anatomy as any other stub — earnings, itemized deductions, year-to-date totals. For context on what those paychecks look like across job titles and agencies, see the guide to State of Illinois employee salaries.
When a pay stub is wrong or missing
Work through it in order. First, check the year-to-date column. A one-period glitch often self-corrects in the running totals; a YTD figure that is genuinely short tells you the size of the real problem and gives payroll a number to fix. Second, ask payroll for the Form W-4 and Form IL-W-4 on file. A surprising share of "payroll errors" turn out to be a withholding certificate that does not say what the employee remembers — the guide to Form IL-W-4 explains what each line should contain. Third, put the request in writing and note the date, which starts the 21-day clock if what you need is copies of past stubs.
If the employer will not correct an error, will not produce stubs, or the missing stub conceals missing wages, file a wage claim with the Illinois Department of Labor. The claim process covers unpaid wages, unlawful deductions and final compensation, and the Department can add the $500-per-violation pay stub penalties on top. Keep every stub you do have — under the new law they are the record the whole dispute will be decided on.
People also ask about Illinois pay stubs
Since January 1, 2025, every Illinois pay stub must show the hours you worked, your rate of pay, overtime pay and overtime hours, gross wages, an itemized list of every deduction, and year-to-date totals of both wages and deductions. The requirement comes from the Pay Stub Protection Act, which amended the Illinois Wage Payment and Collection Act (820 ILCS 115). Before 2025 Illinois required only an itemized statement of deductions; the new law turned the pay stub into a complete, standardized record of each pay period.
Yes, electronic pay stubs are permitted in Illinois, provided you can actually access them and obtain copies on request. Most employers now deliver stubs through a payroll portal rather than on paper. The important protections sit around the electronic system: you can request copies, and when you ask for them you choose whether to receive them physically or electronically. There is also a special rule for departing employees who will lose portal access, requiring the employer to offer the final year of stubs before the last pay period ends.
At least 3 years after the date of payment. The retention duty continues even after the employee leaves the company, so a former employer cannot lawfully tell you your records were purged the month after your last day. This matters in practice because pay stubs are the primary evidence in wage disputes, unemployment claims, loan applications and child support calculations. If you anticipate needing your history, request copies while you are still employed — current employees may make two requests per year at no charge under the Act.
Make a request — the employer may require it in writing — and the company must provide the copies within 21 calendar days. As a former employee you are entitled to one request per year, for up to 3 years after you separated, and you choose whether the copies come on paper or electronically. If the employer misses the deadline or refuses, that is a violation of the Wage Payment and Collection Act, and you can file a complaint with the Illinois Department of Labor, which can assess a civil penalty of up to $500 per violation.
An employer that fails to furnish a compliant pay stub, misses the 21-day deadline on a request, or ignores the retention rules faces a civil penalty of up to $500 per violation, payable to the Illinois Department of Labor. That penalty sits on top of the existing remedies in the Wage Payment and Collection Act, so an employer that also underpaid wages can owe the unpaid amounts, statutory damages and the pay stub penalties at the same time. Complaints are filed through the Department of Labor's wage claim process.
Under Section 9 of the Wage Payment and Collection Act, a deduction is lawful only when it is required by law (taxes, FICA), is for your benefit (insurance premiums, retirement contributions), is expressly authorized by you in writing at the time the deduction is made, or is made under a valid court order such as a wage deduction order. An employer generally cannot dock pay for a cash register shortage, breakage or a mistake without your freely given contemporaneous written consent. Deductions that fail these tests can be recovered through a wage claim.
Most Illinois employees must be paid at least semi-monthly. Wages earned in a semi-monthly or bi-weekly period are due within 13 days after the period ends, weekly wages within 7 days, and daily wages within 24 hours. Executive, administrative and professional employees may be paid monthly, with wages due within 21 days of the period's end. Final compensation for a departing employee is due at the time of separation if possible, and no later than the next regularly scheduled payday — regardless of whether the employee quit or was let go.
State workers paid through the Illinois Comptroller view and download their earnings statements online at mypaystub.illinoiscomptroller.gov, the Comptroller's electronic earnings statement portal, after registering with their employee information. Many agencies also use ePASS, the electronic pay stub system, for the same purpose. The statements carry the same detail as a private-sector stub: earnings, every deduction, and year-to-date totals. Paper statements have largely been phased out, so new state hires should register for the portal during their first pay periods.
Sources
- Illinois Department of Labor — Wage Payment and Collection Act
- 820 ILCS 115 — Illinois Wage Payment and Collection Act, full text
- IDOR — Booklet IL-700-T, 2026 Illinois withholding tables
- Social Security Administration — contribution and benefit base
- Illinois Comptroller — electronic earnings statement portal
General information about Illinois pay stub and wage payment law, not legal advice. Statutes are summarized; the full text of 820 ILCS 115 and Illinois Department of Labor guidance control. For a dispute about your own wages, consider the IDOL wage claim process or an employment attorney.