Illinois paycheck calculator
On a $78,000 salary filing single — $3,716 a year, 4.76% of gross pay, before federal withholding and FICA.
- Top rate
- 4.95%
- Rate on your last dollar
- 4.95%
- State taxable income
- $75,075
- Tax for the year
- $3,716
Illinois taxes every dollar of state taxable income at a single rate of 4.95% — the 24th-highest top rate of the 51 jurisdictions. Illinois has no standard deduction, so a single filer subtracts a $2,925 personal exemption instead. Because the rate itself never changes, the effective rate moves only as those fixed dollar amounts shrink against a bigger salary — 4.59% on $40,000, rising to 4.85% on $150,000.
Illinois 2026 tax rate
One rate, applied to state taxable income after the deductions below.
Single · Married filing jointly · Head of household
| State taxable income | Rate |
|---|---|
| All state taxable income | 4.95% |
Illinois deductions and exemptions
| Amount | Single | Married filing jointly | Head of household |
|---|---|---|---|
| Personal exemption (subtracted from income) | $2,925 | $5,850 | $2,925 |
Work out your own Illinois paycheck
Already set to Illinois, filing single, paid every two weeks, with no 401(k) or health premium so the tax lines stand alone. Change any of it.
Before any deductions. Use the salary calculator to convert an annual figure.
Traditional (pre-tax) deferrals reduce income-tax withholding but not Social Security or Medicare.
Pre-tax (Section 125) premiums, which reduce both income tax and FICA wages.
Uses that state's own rate schedule and standard deduction on your annualized wages. Pick the last option to type a flat rate instead.
Only used when State is set to “Not listed”. A flat estimate applied to taxable wages.
- Annual take-home pay
- $59,987
- Federal income tax withheld
- $320.38
- Social Security (6.2%)
- $186.00
- Medicare (1.45%)
- $43.50
- State income tax
- $142.93From the selected state's rate schedule, or your flat rate.
- Pre-tax deductions (401(k) + health)
- $0.00
- Total taxes as % of gross
- 23.1%
Assumptions
- 2026 Publication 15-T percentage-method tables (automated payroll systems) with a 2020-or-later Form W-4 and no Step 4(a)/4(b) entries.
- Social Security at 6.2% up to the 2026 wage base of $184,500 and Medicare at 1.45% plus 0.9% over $200,000 (IRS Topic 560), both averaged evenly across the year.
- State tax uses each state's published rate schedule, standard deduction and personal exemption for the tax year shown with the results — annualized, then divided by your pay periods rather than run through that state's own withholding formula. The source URL, year and per-state simplifications are printed above the results.
- No local or city income taxes, state disability insurance, HSA/FSA deductions or supplemental-wage withholding. A state that isn't listed falls back to the flat rate you enter.
- Take-home$2,30777%
- Federal income tax$32011%
- Social Security$1866%
- Medicare$441%
- State tax$1435%
| Item | Per two weeks | Annual |
|---|---|---|
| Gross pay | $3,000.00 | $78,000 |
| 401(k) (pre-tax) | -$0.00 | -$0 |
| Health premium (pre-tax) | -$0.00 | -$0 |
| Federal income tax | -$320.38 | -$8,330 |
| Social Security | -$186.00 | -$4,836 |
| Medicare | -$43.50 | -$1,131 |
| State income tax | -$142.93 | -$3,716 |
| Take-home pay | $2,307.18 | $59,987 |
Take-home pay in Illinois by salary
| Salary | Gross / paycheck | Federal | FICA | Illinois | Take-home |
|---|---|---|---|---|---|
| $40,000 | $1,538.46 | $100.77 | $117.69 | $70.59 | $1,249.41 |
| $60,000 | $2,307.69 | $193.08 | $176.54 | $108.66 | $1,829.41 |
| $78,000 | $3,000.00 | $320.38 | $229.50 | $142.93 | $2,307.18 |
| $100,000 | $3,846.15 | $506.54 | $294.23 | $184.82 | $2,860.57 |
| $150,000 | $5,769.23 | $951.31 | $441.35 | $280.01 | $4,096.57 |
| $250,000 | $9,615.38 | $1,973.23 | $596.69 | $470.39 | $6,575.07 |
Per biweekly paycheck, filing single, no 401(k) and no pre-tax premiums. Illinois tax is the annual liability from its 2026 schedule spread evenly across 26 paychecks.
How the neighbours compare
Illinois borders 5 other jurisdictions. Moving across a state line is the one way most people can actually change which of these schedules applies to them, so here is the same income run through each of them.
| State | Rate structure | Per paycheck | A year |
|---|---|---|---|
| Illinois | Flat 4.95% | $142.93 | $3,716 |
| Indiana | Flat 2.95% | $87.37 | $2,272 |
| Iowa | Flat 3.8% | $88.93 | $2,312 |
| Kentucky | Flat 3.5% | $100.48 | $2,612 |
| Missouri | 0% – 4.7% | $105.76 | $2,750 |
| Wisconsin | 3.5% – 7.65% | $120.06 | $3,122 |
State income tax on a single filer, after each state’s own deductions. Federal tax is identical wherever you live, so the difference between these rows is the whole difference.
What these Illinois figures leave out
Recorded against Illinois in the data rather than glossed over, because they change real bills.
- Illinois has no standard deduction; the only subtraction modelled is the $2,925 personal exemption allowance for 2026.
- The exemption allowance is disallowed entirely if federal AGI exceeds $250,000 ($500,000 married filing jointly); that cliff is not modelled.
Frequently asked questions
▸Does Illinois withhold state income tax from your paycheck?
Yes. On a $78,000 salary paid every two weeks, roughly $142.93 a paycheck goes to Illinois income tax — about $3,716 over a year — on top of federal withholding and FICA.
▸What is taken out of a paycheck in Illinois?
Federal income tax withheld under the IRS Publication 15-T tables, Social Security at 6.2% up to the annual wage base, and Medicare at 1.45%, plus Illinois income tax from its 2026 schedule. Pre-tax 401(k) and health premiums come out before the income-tax lines are worked out.
▸How is Illinois withholding calculated here?
Your pay is annualised, run through Illinois's 2026 schedule — a flat 4.95% — with its own exemptions, and the resulting annual liability is spread evenly over your pay periods. That is the annual tax you actually owe; a real Illinois withholding table can differ by a few dollars a period and squares up when you file.
Source
Illinois Department of Revenue — Income tax rates and 2026 exemption allowance
Tax year 2026 figures, last checked against the source on 2026-09-09.
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Illinois paycheck calculator: Illinois tax withheld per biweekly paycheck is $142.93. Source: https://www.calculateitnow.dev/illinois-paycheck-calculator