Illinois Unemployment Benefits Calculator 2026
Estimate your weekly benefit amount (WBA) and total unemployment benefits for Illinois. Enter your high-quarter wages or annual salary for an instant estimate.
Use this Illinois unemployment benefits calculator to estimate your weekly benefit amount (WBA) and total benefits. Illinois calculates your weekly unemployment benefit using your base-period wages, often the high-quarter (highest-earning quarter). This calculator estimates your WBA using the common formula (high-quarter ÷ 26), capped between Illinois's minimum ($51/week) and maximum ($859/week). You can receive benefits for up to 26 weeks, subject to eligibility.
Your Wages — Illinois
Enter high-quarter wages or annual salary for an estimate
Total wages in your highest-earning quarter of the base period.
Uses salary ÷ 4 as estimated high quarter.
Tax reminder: Unemployment benefits are taxable income. You can choose to have federal (and sometimes state) tax withheld. Eligibility and base-period rules vary — check Illinois's official unemployment website for details.
How unemployment benefits are calculated in Illinois
Illinois sets your weekly benefit amount (WBA) using wages from your base period — usually the first four of the last five completed calendar quarters before you file. Many states use a formula based on your high-quarter wages (the quarter in that period when you earned the most). A typical calculation is high-quarter wages divided by 26, rounded down to the nearest dollar, then capped between the state minimum and maximum.
Usually the first 4 of the last 5 completed calendar quarters before you file in Illinois.
The single highest-earning quarter of your base period — the key input to the WBA formula.
$51/wk minimum to $859/wk maximum — your WBA is capped within this range.
Unemployment benefit limits in Illinois
In Illinois, the maximum weekly benefit is $859 and the minimum is $51. You can receive regular unemployment benefits for up to 26 weeks, depending on your work history and state law. Total benefits over the benefit year are limited by both your weekly amount and the number of weeks — the maximum possible total is $22,334.
Eligibility and how to file in Illinois
To qualify for unemployment in Illinois, you generally must have lost your job through no fault of your own, meet minimum earnings or base-period requirements, and be able and available to work. File your claim with Illinois's unemployment agency as soon as possible after becoming unemployed — most states allow you to file online.
Laid off, downsizing, or position eliminated. Generally not quitting voluntarily or termination for cause.
Must have earned enough wages during the base period in Illinois. Requirements vary by state.
Actively seeking employment and available to start work. Part-time work may be allowed while claiming.
File with Illinois's unemployment agency (often online) as soon as you become unemployed. A 1-week waiting period may apply.
Base period and high-quarter wages in Illinois
Your base period is usually the first four of the last five completed calendar quarters before you file. For example, if you file in January 2026, the base period is often October 2024 through September 2025. Your high-quarter is the single quarter in that period in which you earned the most. Illinois uses these wages to determine both eligibility and your weekly benefit amount. If you enter your annual salary in this calculator, we estimate your high-quarter as one-fourth of that amount. For a more accurate estimate, use your actual high-quarter wages from your base period.
Frequently asked questions — Illinois unemployment
Disclaimer: This calculator provides estimates only. Illinois uses its own formula, eligibility rules, and base-period definition. Always verify with Illinois's official unemployment insurance program. Amounts and weeks are subject to change.
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Approximate 2025–2026 data. Verify with Illinois's unemployment agency.
Green = at state max. Orange = at state min.
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