Illinois unemployment benefits calculator

Use this Illinois unemployment calculator to estimate weekly benefits (WBA) from high-quarter wages. Mock cap $577, duration 26 weeks. File only with IDES — we are not the state.

Mock IL formula: WBA = clamp(HQ × 0.03846, $51$577). Not official IDES math.

Estimated weekly benefit

$462

Max duration
26 weeks
Max total (mock)
$12,012

How the Illinois weekly benefit amount is estimated

IDES uses a standard base period of four quarters. WBA is tied to high-quarter wages with a statutory min/max.

Our mock multiplies highest-quarter earnings by 0.03846, then clamps between $51 and $577. Dependents, partial unemployment and severance offsets are not modeled.

How to file Illinois unemployment

File with IDES. Illinois has a flat wage tax — compare after-tax pay on the Illinois paycheck calculator before you take a lower hourly gig.

Waiting week plus weekly certification. Keep the last pay stub; IDES will ask last employer, last day worked, and reason for separation.

IDES →After a US layoff checklist →Next-job paycheck →

Other state unemployment calculators

UI is state law. Texas max $577 / 26 weeks; California max $450 / 26 weeks; New York max $504 / 26 weeks; Florida max $275 / 12 weeks.

Texas UI calculator →California UI calculator →New York UI calculator →Florida UI calculator →

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Frequently asked questions

What is the maximum weekly unemployment benefit in Illinois?

This mock cap is $577 per week. Confirm on IDES.

How many weeks can I collect in Illinois?

This mock duration is 26 weeks. Extensions are not modeled.

How is the Illinois weekly benefit calculated?

Mock WBA = highest quarter × 0.03846, then $51–$577.

Is there a waiting week in Illinois?

Waiting week plus weekly certification. Keep the last pay stub; IDES will ask last employer, last day worked, and reason for separation.

Where do I file Illinois unemployment?

File with IDES. Illinois has a flat wage tax — compare after-tax pay on the Illinois paycheck calculator before you take a lower hourly gig.

Is this official?

No. File with IDES.

Will a part-time gig stop benefits?

Often it reduces WBA. Report all work on weekly certifications. Suitable-work rules vary.