State Income Tax
Oklahoma imposes a state income tax using a graduated tax structure with 6 brackets ranging from 0.25% to 4.75%. The filing deadline is 2026-04-15. Social Security benefits are exempt from Oklahoma state income tax. Retirement income is generally taxable. Social Security exempt; up to $10,000 of retirement income exclusion for some taxpayers.
Retirement Income Details
Social Security exempt; up to $10,000 of retirement income exclusion for some taxpayers.
Does Oklahoma have a state income tax?
Yes. Oklahoma has a state income tax with a graduated structure ranging from 0.25% to 4.75% across 6 brackets.
What is the Oklahoma income tax rate?
Oklahoma has a graduated income tax with 6 brackets. The lowest rate is 0.25% and the highest rate is 4.75%.
Is Social Security taxed in Oklahoma?
No. Oklahoma does not tax Social Security benefits, which can be significant for retirees living on fixed incomes.
Is retirement income taxed in Oklahoma?
Yes. Oklahoma generally taxes retirement income. Social Security exempt; up to $10,000 of retirement income exclusion for some taxpayers.
When is the Oklahoma income tax filing deadline?
The Oklahoma state income tax filing deadline is 2026-04-15. You can file and pay through the official Oklahoma Department of Revenue portal.
What is the standard deduction in Oklahoma?
Oklahoma's standard deduction is $6,350 for single filers and $12,700 for married filing jointly. A personal exemption of $1,000 (single) may also apply.
How does Oklahoma income tax compare to neighboring states?
Oklahoma's top rate of 4.75% is in the moderate range nationally. Use the comparison table above to see how neighboring states compare.
Official Payment Portal
Oklahoma Department of Revenue
Last verified: 2026-03-31 · Always consult a tax professional before making financial decisions.