Illinois Biweekly Paycheck Calculator 2026

Illinois Biweekly Paycheck Calculator (2026)

See what lands in your account every two weeks in Illinois. The estimate applies 2026 federal brackets, FICA and Illinois state income tax to a biweekly pay schedule.

Your details

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Pay type

Annual salary ($)

Hourly rate ($)

Hours per week

Paid weeks per year

Filing status

State

Pay frequency

401(k) deferral (% of gross)

Pre-tax deductions per check ($)

Estimated result

2026 rates

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Illinois income tax in 2026

Illinois taxes all taxable wages at a flat 4.95%. The state standard deduction is no state standard deduction, and the modeled personal exemption is $2,925 per person ($5,850 per couple) where applicable.

Illinois rates compiled from the Tax Foundation 2026 state tables and IRS Rev. Proc. 2025-32 · retrieved 2026-09-01.

Illinois tax brackets (single filers, 2026)

Taxable income	Rate
$0 – and above	4.95%

Married filing jointly brackets are the same as single filers here.

Frequently asked questions

What is the state income tax in Illinois in 2026?

Illinois taxes all taxable wages at a flat 4.95%. The state standard deduction is no state standard deduction.

How is my paycheck calculated in Illinois?

Net pay = gross pay − federal income tax − Social Security (6.2% up to $184,500) − Medicare (1.45%, plus 0.9% above $200k single / $250k joint) − Illinois state income tax − pre-tax deductions.

Are local income taxes included for Illinois?

This calculator covers state-level income tax only; any city or county wage taxes in Illinois would be additional.