Oklahoma tax summary for 2026
| Tax on wages | Graduated brackets |
|---|---|
| Starting point | Federal adjusted gross income |
| Rates (single) | 0% – 4.5% |
| Standard deduction | Single $6,350 · Married filing jointly $12,700 · Head of household $9,350 · Married filing separately $6,350 |
| Personal exemption | Single $1,000 · Married filing jointly $2,000 · Head of household $1,000 · per dependent $1,000 — a deduction from income |
| Federal income tax deduction | Not allowed |
| Employee payroll taxes | None |
| Local income taxes | None |
Oklahoma income tax brackets 2026
Rates apply to Oklahoma taxable income, after the deductions above.
| Rate | Single: income over | Married filing jointly: income over | Head of household: income over | Married filing separately: income over |
|---|---|---|---|---|
| 0% | $0 | $0 | $0 | $0 |
| 2.5% | $3,750 | $7,500 | $7,500 | $3,750 |
| 3.5% | $4,900 | $9,800 | $9,800 | $4,900 |
| 4.5% | $7,200 | $14,400 | $14,400 | $7,200 |
Worked example: $65,000, single, paid biweekly
Computed by the same engine as the calculator, with no pre-tax deductions.
| Line | Per paycheck | Annual |
|---|---|---|
| Gross pay | $2,500.00 | $65,000 |
| Federal income tax | $216.15 | $5,620 |
| Social Security | $155.00 | $4,030 |
| Medicare | $36.25 | $943 |
| Oklahoma income tax | $91.52 | $2,380 |
| Take-home pay | $2,001.08 | $52,028 |
Effective tax rate 20.0%; tax on the next dollar earned 24.1%. Oklahoma taxable income is $57,650.
Second example: $120,000, married filing jointly, two children
Take-home $100,961 a year ($3,883.12 biweekly). Federal income tax $5,640 after a $4,400 Child Tax Credit, Social Security and Medicare $9,180, Oklahoma income tax $4,219.
How the Oklahoma estimate is calculated
- Start from federal adjusted gross income — wages minus traditional 401(k) and Section 125 deductions.
- Subtract the Oklahoma standard deduction for your filing status. Subtract personal exemptions (dependents = the number of children you enter).
- Apply the brackets.
- Divide the annual total by your number of paychecks.
What this Oklahoma calculator does not model
- Oklahoma itemized deductions (capped at $17,000 excluding charitable contributions and medical expenses; required if taxpayer itemized federally)
- Automatic 0.25% rate reduction if State Board of Equalization certifies revenue growth ≥ 5% — not modeled as certification occurs in February
- Oklahoma Earned Income Credit
- Various other credits (adoption, clean-burning motor vehicle, investment in qualified Oklahoma small business, etc.)
- Part-year and nonresident apportionment
Data notes
- HB 2764 (2025) consolidated brackets and cut the top rate to 4.5% for tax year 2026. Re-verified against the OTC 2026 MeF Developer Guide rate schedules: single/MFS 0% to $3,750, 2.5% to $4,900, 3.5% to $7,200, 4.5% above; MFJ/HOH/surviving spouse thresholds doubled ($7,500 / $9,800 / $14,400).
- Standard deduction (return values, fixed by statute): $6,350 single/MFS, $12,700 MFJ, $9,350 HOH. Exemptions: $1,000 per exemption (taxpayer, spouse, each dependent). These match the return instructions, not just the withholding tables.
- Oklahoma requires the same deduction method (standard or itemized) as the federal return; Oklahoma itemized deductions are capped at $17,000 excluding charitable and medical.
- Oklahoma taxable income = federal AGI ± Oklahoma adjustments − deductions − exemptions.
Sources
- State income tax: OTC 2026 MeF Developer Guide – Appendix B standard deductions and Appendix C 2026 Tax Rate Schedules (read 2026-10-07)
- State income tax: 2026 Form OW-8-ES Oklahoma Individual Estimated Tax worksheet ($1,000 per exemption) (read 2026-10-07)
- State income tax: Form 511 Packet – standard deduction ($6,350 / $12,700 / $9,350) and exemptions (read 2026-10-07)
- State income tax: Summary of 2025 Oklahoma Tax Legislation (HB 2764 — rate reduction effective tax year 2026) (read 2026-10-07)
Federal figures come from the IRS and SSA; see the methodology page.
Compare nearby and similar states
Neighboring states: Arkansas, Colorado, Kansas, Missouri, New Mexico, Texas
States with a similar tax setup: Wisconsin, Montana, West Virginia, Nebraska, Maine, New Jersey
See every state side by side in the salary comparison by state, or browse all state paycheck calculators.