Oklahoma Income Tax Calculator
Estimate your 2026 Oklahoma state income tax in seconds. Enter your annual income and filing status — this free Oklahoma income tax calculator applies the verified 2026 Oklahoma brackets, standard deduction, exemptions and credits. Runs entirely in your browser.
In 2026, Oklahoma has a graduated income tax ranging from 2.5% to 4.5%. Oklahoma offers a $6,350 standard deduction for single filers ($12,700 joint) and a $1,000 personal exemption per filer. Oklahoma collapsed six brackets into three and cut the top rate to 4.5% effective January 1, 2026.
Oklahoma 2026 Income Tax Brackets
| Taxable income (Single) | Rate |
|---|---|
| Over $3,750 – $4,900 | 2.5% |
| Over $4,900 – $7,200 | 3.5% |
| Over $7,200 | 4.5% |
Married filing jointly
| Taxable income (Joint) | Rate |
|---|---|
| Over $7,500 – $9,800 | 2.5% |
| Over $9,800 – $14,400 | 3.5% |
| Over $14,400 | 4.5% |
Marginal rates: only income inside each band is taxed at that band's rate.
Frequently Asked Questions
What is the Oklahoma income tax rate for 2026?
Oklahoma has a graduated income tax ranging from 2.5% to 4.5%.
What deductions and exemptions does Oklahoma offer?
Oklahoma offers a $6,350 standard deduction for single filers ($12,700 joint) and a $1,000 personal exemption per filer.
How accurate is this Oklahoma income tax estimate?
It is an annualized estimate: your income minus the 2026 standard deduction (and any state exemptions/credits shown), run through 2026 marginal brackets. It does not include pre-tax deductions like 401(k) contributions, itemized deductions, phaseouts, or local income taxes. Your actual liability can differ.
Sources
Tax figures verified September 2026 for tax year 2026.
Estimate only — not tax advice. This calculator annualizes your income, subtracts the 2026 standard deduction (and state personal exemptions/credits where shown), and applies 2026 marginal brackets. It does not model pre-tax deductions (401(k), health insurance), itemized deductions, credits you may qualify for, phaseouts, or local/city/county income taxes. Consult a tax professional for your situation.