Oklahoma Income Tax Calculator
Estimate Oklahoma state income tax and take-home pay. Oklahoma has 4 tax brackets from 0% to 4.5%.
2026 tax year. Top rate cut from 4.75% to 4.5% on 1 January 2026, and the six previous brackets were consolidated into three. Local city or county income taxes, credits, and itemized deductions are not modeled.
About the Oklahoma Income Tax Calculator
The Oklahoma Income Tax Calculator gives you an instant answer from just a few inputs — filing status, gross annual income, pre-tax deductions (401(k), hsa, premiums). It runs entirely in your browser, so the numbers you enter stay private and never touch a server, and the result recalculates the moment you change a value. It's free to use with no sign-up, no limits, and nothing to install.
Worth Knowing
Oklahoma runs a progressive income tax with 4 brackets, starting at 0% on the first $3,750 of taxable income and topping out at 4.5% on income above $7,200 for a single filer. As with federal tax, each rate applies only to the slice of income inside its own bracket — reaching the top rate does not retroactively tax your earlier dollars at that rate, which is why the effective rate this calculator reports always lands below your marginal rate. Before any of those rates apply, Oklahoma subtracts a standard deduction of $6,350 for single filers and $12,700 for joint filers. Joint filers also get wider brackets, so a couple with one income usually pays less than two single filers splitting the same total. This estimate covers state income tax, federal income tax, and FICA on wage income using 2026 figures. It does not model city or county income taxes, tax credits, itemized deductions, self-employment income, or part-year residency — if you moved into or out of Oklahoma during the year you will generally file a part-year return and allocate income between states rather than paying full-year tax to either. Treat the result as a planning estimate and confirm anything you file with the Oklahoma tax authority or a qualified tax professional.
How to Use
- Enter Filing status into the first field of the Oklahoma Income Tax Calculator.
- Fill in the rest: Gross annual income, Pre-tax deductions (401(k), HSA, premiums).
- Your result appears instantly as you type — there's no submit button or page reload.
- 2026 tax year. Top rate cut from 4.75% to 4.5% on 1 January 2026, and the six previous brackets were consolidated into three. Local city or county income taxes, credits, and itemized deductions are not modeled.
2026 example: $60,000 annual salary
Illustration for a single filer with $60,000 in annual wages and no pre-tax contributions. Uses the model's standard deductions. Excludes local income taxes, credits, itemized deductions, and part-year residency; this is a planning estimate, not a tax return or payroll withholding calculation.
| Result | Estimate |
|---|---|
| Oklahoma state income tax | $2,199.50 |
| Oklahoma effective rate | 3.67% |
| Oklahoma marginal rate | 4.50% |
| Oklahoma taxable income | $53,650.00 |
| Federal income tax | $5,020.00 |
| FICA (Social Security + Medicare) | $4,590.00 |
| Total tax | $11,809.50 |
| Combined effective tax rate | 19.68% |
| Annual take-home pay | $48,190.50 |
| Monthly take-home pay | $4,015.88 |
Reference data and methodology
Tax year: 2026. Reference data last revised: . The estimate uses the rates stored in this calculator, not a live tax-authority lookup. Review the assumptions and exclusions above before using a result.