Oklahoma State Income Tax Calculator
Calculate your Oklahoma state income tax liability for 2026
About Oklahoma State Income Tax
Tax Brackets & Rates (2026)
| Income Range | Tax Rate |
|---|---|
| $0 - $1,000 | 0.25% |
| $1,000 - $2,500 | 0.75% |
| $2,500 - $3,750 | 1.75% |
| $3,750 - $4,900 | 2.75% |
| $4,900 - $7,200 | 3.75% |
| Over $7,200 | 4.75% |
Deductions & Exemptions
- Standard Deduction: $6,350
- Personal Exemption: $1,000 per taxpayer
How Oklahoma State Income Tax Works
Oklahoma uses a progressive tax system with 6 tax brackets. As your income increases, different portions are taxed at higher rates. Only the income within each bracket is taxed at that bracket's rate.
Tips for Oklahoma Taxpayers
- File your state return by the same deadline as federal taxes (typically April 15)
- Consider itemizing deductions if they exceed the standard deduction
- Make estimated quarterly payments if you're self-employed or have significant investment income
- Keep detailed records of all income, deductions, and tax payments
- Consider contributions to tax-advantaged accounts like 401(k)s and IRAs to reduce taxable income