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Tax year 2026 · state vs state

Illinois vs Kansas Income Tax Comparison (2026)

On a $75,000 salary (single filer, 2026), you pay $182 less state income tax a year in Kansas than in Illinois, which is about $15 a month. At $150,000 the gap is $290 in favor of Illinois.

Illinois: 4.95% flatKansas: up to 5.58%Updated October 10, 2026

Compare Illinois and Kansas for your income

Estimate for education only, not tax advice. 2026 federal and state rules, standard deductions, no local taxes. How we calculate.

State comparison

Comparing 2 states, sorted by lowest overall tax rate.

1Kansas

Lowest

22.4%

Overall effective tax rate

  • Net
  • Federal
  • State
  • FICA
Federal income tax
$7,670
State income tax
$3,385
Payroll tax (FICA)
$5,738
Total tax
$16,793
Net income (annual)
$58,207

2Illinois

22.6%

Overall effective tax rate

  • Net
  • Federal
  • State
  • FICA
Federal income tax
$7,670
State income tax
$3,568
Payroll tax (FICA)
$5,738
Total tax
$16,975
Net income (annual)
$58,025

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💰 Monthly breakdown

Your take-home pay, spread across the year

Kansas

Monthly gross$6,250
Monthly tax$1,399
Monthly take-home$4,851

Illinois

Monthly gross$6,250
Monthly tax$1,415
Monthly take-home$4,835

Estimates use 2026 federal and state rates, the standard deduction for your filing status and no local taxes. Rankings use state income tax only.

Illinois vs Kansas: how the two systems differ

IllinoisKansas
Wage income taxFlat 4.95%Progressive, 2 brackets
Top rate4.95%5.58%
Lowest rate4.95%5.2%
Deductions and credits (single)$2,925 personal exemption$3,605 standard deduction, $9,160 personal exemption

State income tax and take-home pay at every salary

The same salary can leave you with different take-home pay depending on the state. This table applies each state’s 2026 rules to a single filer with no pre-tax contributions.

IncomeIL state taxKS state taxDifferenceIL take-homeKS take-home
$30,000$1,340$896$444 less in Kansas$24,945$25,389
$40,000$1,835$1,432$403 less in Kansas$32,485$32,888
$50,000$2,330$1,990$340 less in Kansas$40,025$40,365
$60,000$2,825$2,548$277 less in Kansas$47,565$47,842
$75,000$3,568$3,385$182 less in Kansas$58,025$58,207
$100,000$4,805$4,780$25 less in Kansas$74,375$74,400
$150,000$7,280$7,570$290 less in Illinois$106,511$106,221
$250,000$12,230$13,150$920 less in Illinois$170,952$170,032

Single filer, 2026, federal standard deduction. Take-home is after federal, state and payroll tax. No local taxes.

Married filing jointly

IncomeIL state taxKS state taxDifferenceIL take-homeKS take-home
$75,000$3,423$2,528$895 less in Kansas$61,200$62,094
$100,000$4,660$3,923$737 less in Kansas$80,050$80,787
$150,000$7,135$6,713$422 less in Kansas$116,050$116,472
$250,000$12,085$12,293$208 less in Illinois$185,383$185,175

Married filing jointly, 2026, federal standard deduction. Uses each state's joint brackets where they differ.

Does the lower-tax state change as income rises?

For a single filer, Kansas is the lower-tax state up to roughly $105,000 of income, and Illinois becomes the lower-tax state above that.

Rates side by side

Illinois (single filers)

4.95%Over $0

Kansas (single filers)

5.2%Up to $23,000
5.58%Over $23,000

Full details for each state: Illinois income tax calculator and Kansas income tax calculator. Federal rates are on the 2026 federal tax brackets page.

Illinois vs Kansas FAQ

Which has lower income tax, Illinois or Kansas?+

Kansas is lower at $75,000: $3,385 of state income tax versus $3,568 in Illinois. At $150,000 it is $7,280 in Illinois and $7,570 in Kansas. For a single filer, Kansas is the lower-tax state up to roughly $105,000 of income, and Illinois becomes the lower-tax state above that.

How much more do I keep on $100,000 in Illinois versus Kansas?+

A single filer keeping $74,375 a year in Illinois would keep $74,400 in Kansas after federal, state and payroll tax. The difference is $25 a year, or $2 a month.

How do the Illinois and Kansas income tax systems differ?+

Illinois uses a flat 4.95% rate; Kansas uses progressive rates up to 5.58%. State deductions and exemptions also differ, which changes how much income is taxed.

Are local taxes included in this Illinois vs Kansas comparison?+

No. It covers federal income tax, Social Security, Medicare and state income tax only. City, county, sales and property taxes are not included, and they can change the real cost of living in each state.

Should I move from Illinois to Kansas to save on taxes?+

State income tax is one cost among many. Property and sales taxes, housing, insurance and wages also differ, and you may owe tax to both states in the year you move. Use this comparison as one input and confirm details with a tax professional.

Sources

Last checked October 10, 2026. Confirm with your state tax agency before filing.

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Estimates for education only, not tax, legal or financial advice. Not a substitute for a tax professional or your state revenue department.