How much is Oklahoma income tax?
Estimate your Oklahoma state income tax for 2026. Type your federal AGI and filing status; the page applies Oklahoma's deduction, exemptions, and rates. An estimate, not tax advice.
- Oklahoma income tax
- $2,829.50
On $75,000.00 of AGI, filing Single, Oklahoma income tax is $2,829.50 (3.77% effective).
- State income tax
- $2,829.50
- Effective rate
- 3.77%
- State marginal rate
- 4.5%
- State taxable income
- $67,650.00
- Deduction
- $6,350.00
- Exemptions
- $1,000.00
- Credits
- $0.00
Oklahoma income tax: $2,829.50. On $75,000.00 of AGI, filing Single, Oklahoma income tax is $2,829.50 (3.77% effective).
Oklahoma income tax by federal adjusted gross income
The results are estimates for information only. They are not financial, tax, or legal advice. Check the numbers with your lender or a qualified professional before you decide. Terms of use
How to calculate
Estimates 2026 Oklahoma income tax from federal AGI, filing status, and dependents.
Example with the default inputs (Filing status Single, Federal adjusted gross income $75,000.00, Dependents 0): On $75,000.00 of AGI, filing Single, Oklahoma income tax is $2,829.50 (3.77% effective).
Method: Taxable income = AGI − larger of standard or itemized deduction − exemptions; tax = state rates on taxable income − credits.
- An estimate for a full-year resident, 2026 rates, not tax advice.
- Starts from federal AGI; Oklahoma additions and subtractions are not modelled.
- Not modelled: part-year and nonresident returns, other state credits, and state AMT.
Worked examples
Each example is checked against the calculator on every build.
- Filing status Single, Federal adjusted gross income $50,000.00, Dependents 0 gives State taxable income $42,650.00, State income tax $1,704.50, Oklahoma income tax $1,704.50.Source: Oklahoma Tax Commission, Summary of 2025 Tax Legislation (HB 2764, 2026 brackets), https://oklahoma.gov/content/dam/ok/en/tax/documents/resources/publications/legislation/2025LegislativeUpdate.pdf (worked from it at AGI $50,000, single)
- Filing status Married filing jointly, Federal adjusted gross income $100,000.00, Dependents 2 gives State taxable income $83,300.00, State income tax $3,319.00, Oklahoma income tax $3,319.00.
- Filing status Head of household, Federal adjusted gross income $200,000.00, Dependents 1 gives State taxable income $188,650.00, State income tax $8,059.75, Oklahoma income tax $8,059.75.
Other questions people ask
What is the Oklahoma income tax rate?
Oklahoma taxes income at 2.5% to 4.5% in 4 brackets (single filers). For a single filer the schedule is 0% from $0, 2.5% from $3,750, 3.5% from $4,900, 4.5% above $7,200 of taxable income. These are the 2026 rates.
How is Oklahoma income tax calculated?
Start from federal adjusted gross income. Subtract the larger of the Oklahoma standard deduction and your itemized deductions, then the exemptions. Apply the rates to what is left and subtract any credits. The standard deduction is $6,350 single, $12,700 married filing jointly, $6,350 separately, and $9,350 head of household. The model takes a personal exemption of $1,000 ($2,000 joint), $1,000 for each dependent.
Does Oklahoma have a local income tax?
This page has no local income tax for Oklahoma; if your city or county has one, add it yourself.
What does this Oklahoma calculator leave out?
It also leaves out state additions and subtractions to federal AGI (such as retirement or Social Security exclusions), part-year and nonresident returns, and credits such as child care, earned income, and tax paid to another state.
Which tax year do the Oklahoma rates cover?
Tax year 2026, the return you file in 2027. They come from Oklahoma Tax Commission.
Which states have no income tax on wages?
Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. They have no page of their own, because there is no wage income tax to work out; the state income tax calculator answers 0 for them. Federal income tax and Social Security and Medicare still apply.
Is this the same as my paycheck withholding?
No. This is the tax for the whole year on your return. Your employer withholds by the state's own withholding formula, so your refund or balance due is the difference between the two.