Skip to main content
USTaxGauge
Tax year 2026

Kansas vs Oklahoma Income Tax — 2026

A single filer earning $100,000 pays $826 less per year in Oklahoma than in Kansas — $69 a month. Kansas charges $4,780; Oklahoma charges $3,955.

Why this pair has a page: bordering states.

Kansas at $100K
$4,780
4.78%
Oklahoma at $100K
$3,955
3.95%
Annual difference
$826
$69 a month
National ranks
41 vs 28
of 50, lowest tax first

The bill at every income

Single filer, standard deduction, no dependents. State income tax only.

Kansas and Oklahoma income tax compared at seven income levels, 2026
Gross incomeKansas taxOklahoma taxDifference
$50,000$1,990$1,705$286 less in OK
$75,000$3,385$2,830$556 less in OK
$100,000$4,780$3,955$826 less in OK
$150,000$7,570$6,205$1,366 less in OK
$250,000$13,150$10,705$2,446 less in OK
$500,000$27,100$21,955$5,146 less in OK
$1,000,000$55,000$44,455$10,546 less in OK
Annual state income tax, Kansas versus Oklahoma
KS at $50,000: $1,990KS at $50,000$1,990OK at $50,000: $1,705OK at $50,000$1,705KS at $75,000: $3,385KS at $75,000$3,385OK at $75,000: $2,830OK at $75,000$2,830KS at $100,000: $4,780KS at $100,000$4,780OK at $100,000: $3,955OK at $100,000$3,955KS at $150,000: $7,570KS at $150,000$7,570OK at $150,000: $6,205OK at $150,000$6,205KS at $250,000: $13,150KS at $250,000$13,150OK at $250,000: $10,705OK at $250,000$10,705KS at $500,000: $27,100KS at $500,000$27,100OK at $500,000: $21,955OK at $500,000$21,955KS at $1,000,000: $55,000KS at $1,000,000$55,000OK at $1,000,000: $44,455OK at $1,000,000$44,455

How the two systems differ

Kansas and Oklahoma income tax systems compared
KansasOklahoma
Tax structureGraduatedGraduated
Top marginal rate5.58%4.5%
Number of brackets24
Standard deduction (single)$3,605$6,350
Personal exemption$9,160$1,000
Local income taxesYesNo
Capital gainsordinaryordinary
Population (2024)2,970,6064,095,393

By filing status

Kansas and Oklahoma tax on $100,000 by filing status, 2026
Filing statusKansasOklahomaDifference
Single$4,780$3,955$826 less in OK
Married filing jointly$3,923$3,409$514 less in OK
Married filing separately$4,752$3,955$797 less in OK
Head of household$4,507$3,605$902 less in OK

Change the assumptions

Adjust income and filing status, or swap either state. The URL updates so you can share the exact comparison.

At $100,000 as a single filer, Oklahoma costs $826 less per year than Kansas — $69 a month.

Kansas compared with Oklahoma at $100,000
KansasOklahomaDifference
State income tax$4,780$3,955$826
Per month$398$330$69
Effective rate4.78%3.95%0.83 pts
Marginal rate5.58%4.5%1.08 pts
Standard deduction$3,605$6,350$2,745
Taxable income$87,235$92,650$5,415
Tax structureGraduatedGraduated
Local income taxesYesNo

Local taxes are not included above. Kansas has localities that levy their own income tax on top of the state figure. See each state page for the rates that apply.

Full detail: Kansas · Oklahoma · methodology

Local income taxes change this picture

What this comparison leaves out

Sources for both states

  1. 1.Kansas Department of RevenueState revenue department
    2026 Kansas Individual Estimated Tax (K-40ES), including the 2026 tax computation schedules and standard deduction chart
    https://www.ksrevenue.gov/pdf/k-40es26.pdf
    Retrieved
  2. 2.Tax FoundationResearch organisation (cross-check)
    State Individual Income Tax Rates and Brackets, 2026
    https://taxfoundation.org/data/all/state/state-income-tax-rates-2026/
    Retrieved
  3. 3.Oklahoma Tax CommissionState revenue department
    2026 Oklahoma Income Tax Withholding Tables (Packet OW-2, revised 11-2025)
    https://www.oklahoma.gov/content/dam/ok/en/tax/documents/resources/publications/businesses/withholding-tables/WHTables-2026.pdf
    Retrieved

Figures on this page were last checked against these sources on . Found something wrong? Report it.