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Tax year 2026

Arkansas vs Oklahoma Income Tax — 2026

A single filer earning $100,000 pays $742 less per year in Arkansas than in Oklahoma — $62 a month. Arkansas charges $3,212; Oklahoma charges $3,955.

Why this pair has a page: bordering states.

Arkansas at $100K
$3,212
3.21%
Oklahoma at $100K
$3,955
3.95%
Annual difference
$742
$62 a month
National ranks
18 vs 28
of 50, lowest tax first

The bill at every income

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

Arkansas and Oklahoma income tax compared at seven income levels, 2026
Gross incomeArkansas taxOklahoma taxDifference
$50,000$1,362$1,705$342 less in AR
$75,000$2,287$2,830$542 less in AR
$100,000$3,212$3,955$742 less in AR
$150,000$5,062$6,205$1,142 less in AR
$250,000$8,762$10,705$1,942 less in AR
$500,000$18,012$21,955$3,942 less in AR
$1,000,000$36,512$44,455$7,942 less in AR
Annual state income tax, Arkansas versus Oklahoma
AR at $50,000: $1,362AR at $50,000$1,362OK at $50,000: $1,705OK at $50,000$1,705AR at $75,000: $2,287AR at $75,000$2,287OK at $75,000: $2,830OK at $75,000$2,830AR at $100,000: $3,212AR at $100,000$3,212OK at $100,000: $3,955OK at $100,000$3,955AR at $150,000: $5,062AR at $150,000$5,062OK at $150,000: $6,205OK at $150,000$6,205AR at $250,000: $8,762AR at $250,000$8,762OK at $250,000: $10,705OK at $250,000$10,705AR at $500,000: $18,012AR at $500,000$18,012OK at $500,000: $21,955OK at $500,000$21,955AR at $1,000,000: $36,512AR at $1,000,000$36,512OK at $1,000,000: $44,455OK at $1,000,000$44,455

How the two systems differ

Arkansas and Oklahoma income tax systems compared
ArkansasOklahoma
Tax structureGraduatedGraduated
Top marginal rate3.7%4.5%
Number of brackets54
Standard deduction (single)$2,470$6,350
Personal exemption$29 credit$1,000
Local income taxesNoNo
Capital gainspreferentialordinary
Population (2024)3,088,3544,095,393

By filing status

Arkansas and Oklahoma tax on $100,000 by filing status, 2026
Filing statusArkansasOklahomaDifference
Single$3,212$3,955$742 less in AR
Married filing jointly$3,121$3,409$288 less in AR
Married filing separately$3,212$3,955$742 less in AR
Head of household$3,212$3,605$392 less in AR

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, Arkansas costs $742 less per year than Oklahoma — $62 a month.

Arkansas compared with Oklahoma at $100,000
ArkansasOklahomaDifference
State income tax$3,212$3,955$742
Per month$268$330$62
Effective rate3.21%3.95%0.74 pts
Marginal rate3.7%4.5%0.80 pts
Standard deduction$2,470$6,350$3,880
Taxable income$97,530$92,650$4,880
Tax structureGraduatedGraduated
Local income taxesNoNo

Full detail: Arkansas · Oklahoma · methodology

What this comparison leaves out

Sources for both states

  1. 1.Arkansas Department of Finance and AdministrationState revenue department
    Withholding Tax Formula Method, Effective 01/01/2026 (Tax Year 2026 brackets)
    https://www.dfa.arkansas.gov/wp-content/uploads/Withholding-Tax-Formula.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.