Oklahoma income tax rates for 2026
0% on the first $3,750 of taxable income ($7,500 joint), then 2.5%, 3.5% and a 4.5% top rate. The calculation starts from federal adjusted gross income with Oklahoma adjustments. Each rate applies only to the slice of taxable income inside its bracket, so earning enough to reach a higher bracket never lowers your income after tax.
| Rate | Taxable income |
|---|---|
| 0% | $0 – $3,750 |
| 2.5% | $3,751 – $4,900 |
| 3.5% | $4,901 – $7,200 |
| 4.5% | Over $7,200 |
| Rate | Taxable income |
|---|---|
| 0% | $0 – $7,500 |
| 2.5% | $7,501 – $9,800 |
| 3.5% | $9,801 – $14,400 |
| 4.5% | Over $14,400 |
Heads of household use the joint brackets. Married people filing separately use the single brackets.
Deductions, exemptions and credits
Before the rates apply, Oklahoma allows a standard deduction of $6,350 (single) or $12,700 (married filing jointly) and a personal exemption of $1,000 (single) or $2,000 (joint). The calculator uses these for the filing status you choose; dependent exemptions and credits, which lower the tax further for families, are not included.
Worked example: $75,000 in Oklahoma
Single filer with $75,000 of income before state deductions.
Taxable income = $75,000 − $6,350 (standard deduction) − $1,000 (personal exemption) = $67,650.00
Brackets: 0% × $3,750.00 + 2.5% × $1,150.00 + 3.5% × $2,300.00 + 4.5% × $60,450.00 = $2,829.50
Oklahoma income tax = $2,829.50 — an effective rate of 3.77% and a marginal rate of 4.5%.
Oklahoma income tax at common incomes
| Income | Single | Effective | Married jointly | Effective |
|---|---|---|---|---|
| $30,000 | $805 | 2.68% | $259 | 0.86% |
| $50,000 | $1,705 | 3.41% | $1,159 | 2.32% |
| $75,000 | $2,830 | 3.77% | $2,284 | 3.05% |
| $100,000 | $3,955 | 3.95% | $3,409 | 3.41% |
| $150,000 | $6,205 | 4.14% | $5,659 | 3.77% |
| $250,000 | $10,705 | 4.28% | $10,159 | 4.06% |
Income before state deductions; standard deduction and personal exemptions for the filer (and spouse) only; no dependents, itemized deductions or local taxes.
Oklahoma compared with nearby states
At $75,000 (single), Oklahoma ranks 21 of 51 for state income tax, where 1 is the highest. Texas does not tax wages.
| State | Tax on $75,000 | Effective rate | Top rate |
|---|---|---|---|
| Oklahoma | $2,830 | 3.77% | 4.5% |
| Kansas | $3,385 | 4.51% | 5.58% |
| Missouri | $2,534 | 3.38% | 4.7% |
| Arkansas | $2,287 | 3.05% | 3.7% |
| Texas | $0 | 0% | none |
| New Mexico | $2,359 | 3.15% | 5.9% |
| Colorado | $2,592 | 3.46% | 4.4% |
More about taxes in Oklahoma
- Oklahoma consolidated its income tax brackets for 2026, with a 4.5% top rate.
Frequently asked questions
What is the Oklahoma income tax rate for 2026?
0% on the first $3,750 of taxable income ($7,500 joint), then 2.5%, 3.5% and a 4.5% top rate. A single filer with $75,000 of income is in the 4.5% bracket but pays an effective 3.77%, because lower slices of income are taxed at lower rates.
How much Oklahoma income tax do I pay on $75,000?
About $2,830 for a single filer — 3.77% of income — after $6,350 of standard deduction and $1,000 of personal exemption. A married couple with $150,000 owes about $5,659.
What deductions does Oklahoma allow?
Oklahoma allows a standard deduction of $6,350 (single) or $12,700 (married filing jointly) and a personal exemption of $1,000 (single) or $2,000 (joint). Dependent exemptions or credits, where the state offers them, lower the tax further.
Is Oklahoma's income tax higher than its neighbors'?
At $75,000 (single), Oklahoma ranks 21 of 51 for state income tax, where 1 is the highest. Among nearby states, Texas is lowest at $0 and Kansas is highest at $3,385.
Estimates only — not tax advice. Oklahoma figures: Tax Foundation, State Individual Income Tax Rates and Brackets, 2026 (as of Jan. 1, 2026). Checked October 2026. Your return may include income, deductions and credits this estimate leaves out.