Oklahoma income tax brackets
Oklahoma has 4 brackets for single filers, from 0% on the first $3,750 of taxable income to 4.5% on income over $7,200; joint filers reach the top rate at $14,400. The Oklahoma standard deduction is $6,350 for single filers, $12,700 for married couples filing jointly and $9,350 for heads of household.
This is Oklahoma's 2026 schedule. It was checked on 2026-09-30 against Oklahoma Tax Commission Packet OW-2 2026 withholding tables (annual: 0 to $10,100 single / $20,200 married, then 2.5%/3.5%/4.5%).
| Rate | Single | Married filing jointly | Tax at the top of the single band |
|---|---|---|---|
| 0% | up to $3,750 | up to $7,500 | $0 |
| 2.5% | $3,750 – $4,900 | $7,500 – $9,800 | $29 |
| 3.5% | $4,900 – $7,200 | $9,800 – $14,400 | $109 |
| 4.5% | over $7,200 | over $14,400 | — |
Oklahoma and federal income tax by income
At the calculator's default $85,000, Oklahoma takes $3,325 of a $13,195 total income tax bill, or 25%. Filing status matters too: a married couple filing jointly on $170,000 owes Oklahoma $6,649 — exactly what two single filers earning $85,000 each would pay.
| Gross income | Oklahoma tax | Oklahoma rate | Federal tax | Combined effective rate |
|---|---|---|---|---|
| $30,000 | $850 | 2.83% | $1,420 | 7.57% |
| $50,000 | $1,750 | 3.50% | $3,820 | 11.14% |
| $65,000 | $2,425 | 3.73% | $5,620 | 12.38% |
| $85,000 (default) | $3,325 | 3.91% | $9,870 | 15.52% |
| $100,000 | $4,000 | 4.00% | $13,170 | 17.17% |
| $125,000 | $5,125 | 4.10% | $18,734 | 19.09% |
| $200,000 | $8,500 | 4.25% | $36,734 | 22.62% |
| $300,000 | $13,000 | 4.33% | $68,134 | 27.04% |
| $400,000 | $17,500 | 4.37% | $103,134 | 30.16% |
Marginal tax rate in Oklahoma
The next dollar a single filer earns above $85,000 is taxed at 26.5%: 22% federal and 4.5% by Oklahoma. That is already Oklahoma's top rate.