How does the Illinois paycheck calculator work?
It estimates your net take-home pay by subtracting the main payroll deductions from your gross income. Here's what it accounts for:
- Federal income tax, calculated using 2026 marginal tax brackets and the updated standard deduction ($16,100 single / $24,150 head of household / $32,200 married filing jointly, per the OBBB Act).
- Illinois state income tax, a flat rate of 4.95% on your Illinois taxable income, minus the IL personal exemption ($2,850 per person).
- Social Security (FICA), 6.2% of wages up to the $184,500 cap.
- Medicare, 1.45% of all wages, plus an additional 0.9% on income above $200,000 (single / HoH) or $250,000 (married).
- Pre-tax deductions, optional 401(k) and HSA contributions that reduce your federal taxable income.
The result is then divided by your chosen pay frequency to show the per-paycheck amount. You can enter your salary as an annual amount or as an hourly wage.
Tip: Illinois has no local income taxes, you won't owe any city or county taxes. That makes it simpler to calculate take-home pay in Illinois compared to states with local levies.
Illinois income tax: what you need to know
Illinois uses a flat income tax rate, currently set at 4.95%. Every worker pays the same state tax percentage regardless of whether they earn $30,000 or $300,000.
Compared to neighboring states: Wisconsin ranges from 3.5% to 7.65%, Iowa charges 3.8%, Missouri ranges from 0% to 4.7%, Kentucky charges 3.5%. Understanding these differences matters when comparing take-home pay between states.
Illinois also offers a personal exemption of $2,850 per person for 2026, which reduces your state taxable income before the 4.95% rate is applied. If you're married with dependents, this adds up, adjust the exemptions field above to see the impact on your paycheck.
Note on Illinois payroll tax: As an employer or self-employed individual in Illinois, you should know that Illinois payroll taxes include the standard FICA obligations (Social Security + Medicare) plus the 4.95% state income tax withholding. There is no separate state unemployment insurance paid by employees. Our calculator covers the employee side of these deductions.
Who benefits most from Illinois's tax structure?
Retirees benefit the most in Illinois, since all retirement income is exempt from the flat state tax, while working residents pay the same 4.95% rate regardless of income level.
Illinois paycheck tax breakdown
Here's a summary of each tax that comes out of your Illinois paycheck. This Illinois salary tax breakdown applies whether you use the annual salary or hourly wage mode:
Federal Income Tax
10%–37%
Marginal brackets
Illinois State Tax
4.95%
Flat rate; $2,850 exemption/person
Social Security
6.2%
Wage base limit 2026
Medicare
1.45%+
+0.9% above $200k/$250k
Local Taxes
0%
None in Illinois
2026 Federal income tax brackets
Federal income tax uses a progressive system, you pay a higher rate only on income within each bracket. Standard deductions updated per the OBBB Act (July 2025). These brackets apply to all states, including when you use this Illinois paycheck calculator for 2026.
Standard deduction: $16,100
| Bracket | Rate |
|---|---|
| $0 – $12,400 | 10% |
| $12,400 – $50,400 | 12% |
| $50,400 – $105,700 | 22% |
| $105,700 – $201,775 | 24% |
| $201,775 – $256,225 | 32% |
| $256,225 – $640,600 | 35% |
| $640,600+ | 37% |
Example calculation
Let's walk through a single filer earning $75,000/year paid bi-weekly, with no 401(k) or HSA contributions:
- Federal standard deduction: $75,000 − $16,100 = $58,900 taxable income
- Federal tax: Applied using 2026 marginal brackets = ≈ $7,670
- Illinois state tax: 4.95% × ($75,000 − $2,850 deductions) = $3,571
- FICA: (6.2% + 1.45%) × $75,000 = $5,738
Result: $75,000 − $16,979 = $58,021/year → ≈ $2,232 per paycheck (bi-weekly)
Take-home pay for common Illinois salaries
Here's a quick-reference table showing estimated annual and bi-weekly take-home pay for common salaries in Illinois (single filer, 1 exemption, no 401k/HSA). Use the Illinois salary calculator above to get a precise estimate for your specific situation.
| Gross Salary | Total Tax | Annual Net | Bi-weekly |
|---|---|---|---|
| $40,000 | $7,519 | $32,481 | $1,249 |
| $50,000 | $9,979 | $40,021 | $1,539 |
| $60,000 | $12,439 | $47,561 | $1,829 |
| $75,000 | $16,979 | $58,021 | $2,232 |
| $100,000 | $25,629 | $74,371 | $2,860 |
| $125,000 | $34,343 | $90,657 | $3,487 |
| $150,000 | $43,493 | $106,507 | $4,096 |
Estimates based on 2026 tax brackets, IL 4.95% flat rate, 1 personal exemption. Your actual take-home may differ based on filing status, dependents, and pre-tax contributions.
Take-home on $75,000: Illinois vs. neighboring states
Cross a border and the same $75,000 salary changes size. A single filer nets $58,021 in Illinois; among its neighbors, the same paycheck stretches furthest in Indiana ($59,410) and thinnest in Wisconsin ($58,981):
| State | Annual net | Effective rate | vs IL |
|---|---|---|---|
| Illinois (this page) | $58,021 | 22.6% | — |
| Indiana | $59,410 | 20.8% | +$1,389 |
| Iowa | $59,354 | 20.9% | +$1,333 |
| Kentucky | $59,085 | 21.2% | +$1,064 |
| Missouri | $59,025 | 21.3% | +$1,004 |
| Wisconsin | $58,981 | 21.4% | +$960 |
Single filer, 2026 rates, standard deduction, 1 exemption where applicable, no pre-tax deductions or local taxes — same assumptions as the tables above. State taxes are one factor; cost of living, property and sales taxes also differ.
Marginal vs. effective tax rate
Marginal rate: your last dollar
On a $75,000 single-filer salary in Illinois, the next dollar you earn is taxed at the 22% federal bracket plus Illinois's flat 4.95%.
Effective rate: what you actually pay
Total tax ÷ gross income. That same Illinois earner pays $16,979 in combined federal, state, and FICA taxes, an effective rate of 22.6%, well below the marginal headline.
The calculator shows your effective total rate next to the annual net figure; the marginal rate is what matters when weighing a raise, bonus, or an extra 401(k) dollar. For the full explainer with bracket charts, see 2026 tax brackets explained.
2025 vs. 2026: what changed?
Key differences affecting your Illinois paycheck:
Std. deduction (single)
Std. deduction (married)
SS wage base
On the state side, this calculator applies Illinois's current 2026 flat rate of 4.95%. Several states adjusted their rates for 2026, so state-side year-over-year changes vary; the federal changes above apply to every Illinois worker either way, and the larger standard deduction means slightly more take-home at the same salary than in 2025.
FAQs
What is the Illinois state income tax rate?
Illinois has a flat income tax rate of 4.95%. Every worker pays the same state tax percentage regardless of income level.
Does Illinois have local income taxes?
No. Illinois does not impose any local, city, or county income taxes on employees.
How much is taken out of my paycheck in Illinois?
For a typical $75,000 salary (single filer), approximately 22.6% goes to taxes. This includes federal income tax, Illinois state tax (4.95%), Social Security (6.2%), and Medicare (1.45%). Use our Illinois paycheck calculator above for your exact deductions.
What is the tax percentage in Illinois?
The Illinois state income tax rate is 4.95%. On top of that, you'll pay federal income tax (10%–37% depending on your bracket), Social Security (6.2%), and Medicare (1.45%). Combined, most Illinois workers pay an effective total tax rate between 20% and 30% depending on income.
Does Illinois tax Social Security or retirement income, and are there other state payroll deductions?
Illinois does not tax Social Security benefits or any other retirement income, 401(k), IRA, and pension withdrawals are all fully exempt from state tax regardless of amount. There is no state disability or paid-family-leave payroll deduction; Chicago and Cook County have separate paid-leave ordinances for employers, but those are not a payroll tax.
What is the Illinois personal exemption?
Illinois provides a personal exemption of $2,850 per person claimed (self, spouse, and dependents). This reduces your state taxable income before the 4.95% rate is applied.
How do I calculate my bi-weekly paycheck?
Divide your annual take-home pay by 26 (the number of bi-weekly pay periods in a year). For example, a $75,000 salary with $58,021 net → approximately $2,232 per paycheck. You can also switch to weekly, semi-monthly, or monthly frequency using the dropdown in the calculator above.
How accurate is this calculator?
This is a solid estimate using 2026 federal tax brackets, OBBB-updated standard deductions, IL state tax rates, and Additional Medicare Tax. It does not account for itemized deductions, tax credits (like EITC or child tax credit), non-wage income, or local taxes. For tax planning purposes, it provides a reliable paycheck estimate for Illinois workers.
General paycheck questions, federal withholding, the Social Security wage base, how 401(k) contributions cut your tax, are answered on the take-home pay calculator and in 2026 tax brackets explained.
Illinois paycheck calculators by city
Living in a specific Illinois city? Use our city-specific paycheck calculators below, each accounts for any local income tax, the state's tax structure, and city-specific cost-of-living context. Major employers, neighborhood breakdowns, and commute notes are included for each:
Each city page includes federal + Illinois state tax calculations, local employers, neighborhoods, and commute information.
More Illinois calculators
Explore other free Illinois money calculators, all using the same 2026 federal and Illinois state tax data:
Paycheck calculators for other states
Paycheck calculators by state
Click any state to view its paycheck calculator. Green states have no income tax.
Moving to a different state or comparing your Illinois take-home pay? Use our free paycheck calculators for other popular states:
All calculators are free, require no signup, and are updated for 2026 tax brackets.