Oklahoma has a top marginal income tax rate of 4.75% for 2026. See the full brackets, standard deduction, and how it stacks up against the national average.
Last updated: May 2026 · Data: state revenue departments, IRS, BLS
Oklahoma uses a graduated (progressive) income tax system administered by the Oklahoma Tax Commission. The top marginal rate for 2026 is 4.75% on the highest bracket.
| Taxable Income | Tax Rate (2026) |
|---|---|
| $0 to $1,000 | 0.25% |
| $1,000 to $2,500 | 0.75% |
| $2,500 to $3,750 | 1.75% |
| $3,750 to $4,900 | 2.75% |
| $4,900 to $7,200 | 3.75% |
| Over $7,200 | 4.75% |
Oklahoma income tax starts from your taxable income after deductions. For 2026 (2025 tax year), the federal standard deduction is $15,000 for single filers and $30,000 for married filing jointly, which reduces the income subject to federal tax.
| Standard Deduction (2026) | Amount |
|---|---|
| Federal - Single | $15,000 |
| Federal - Married Filing Jointly | $30,000 |
| Federal - Head of Household | $22,500 |
State standard deductions, personal exemptions, and credits vary and may differ from the federal amounts above. Confirm Oklahoma figures with the Oklahoma Tax Commission.
| Benchmark | Top Marginal Rate |
|---|---|
| Oklahoma (2026) | 4.75% |
| National average - all 50 states | 4.86% |
| National average - 41 states with an income tax | 5.93% |
| Highest in the U.S. (California) | 13.3% |
| Lowest among states that tax income | 2.5% |
| States with no income tax | 0% (9 states) |
At 4.75%, Oklahoma's top rate is below the national average of 4.86% (all 50 states).
Oklahoma has six income tax brackets with a top rate of 4.75%. The state does not tax Social Security benefits and allows a partial deduction for retirement income.
| Oklahoma Tax Snapshot | 2026 |
|---|---|
| Top Income Tax Rate (2026) | 4.75% |
| Income Tax Structure | 6-bracket graduated |
| State Sales Tax | 4.5% |
| Minimum Wage | $7.25/hour |
| Median Household Income | $61,000 |
| Tax Agency | Oklahoma Tax Commission |
Run the numbers for Oklahoma with our free calculators:
See how nearby states tax income in 2026:
Oklahoma has a top marginal state income tax rate of 4.75% for 2026, applied to the highest income bracket. Lower brackets are taxed at lower rates. It is administered by the Oklahoma Tax Commission.
Oklahoma uses a graduated, progressive income tax system, so different portions of your income are taxed at different rates as shown in the bracket table above.
Oklahoma has 6 income tax brackets for 2026, ranging up to a top rate of 4.75%.
The 2026 federal standard deduction is $15,000 for single filers and $30,000 for married filing jointly. Oklahoma state deductions, exemptions, and credits can differ; verify current figures with the Oklahoma Tax Commission.
At 4.75%, Oklahoma's top rate is below the national average of 4.86% (all 50 states). The national average top marginal rate is 4.86% across all 50 states and 5.93% among the 41 states that levy an income tax.
State income tax in Oklahoma is collected by the Oklahoma Tax Commission. Federal income tax and FICA (Social Security and Medicare) are paid separately to the IRS.