Oklahoma Tax Calculators.
Tax year 2026 income tax rates, brackets, and sales tax for Oklahoma. Returns for tax year 2026 are generally filed in 2027; source links and last-verified dates are shown below.Tax year 2026 means income earned during calendar year 2026; those returns are generally filed in 2027. State and local sales tax rates can change during the year, so confirm current rules before filing or remitting tax.
Income Tax
Oklahoma’s 2026 schedule has a zero band followed by 2.5%, 3.5% and 4.5%; future rate triggers are not assumed. The basic standard deductions are $6,350 single, $12,700 joint and $9,350 head of household, and require the federal standard method. Federal itemizers must supply the reviewed Oklahoma allowed total after addbacks and the applicable $17,000 cap, with charity/medical exceptions. Eligible personal/dependent and blindness exemptions are $1,000 each. The $1,000 age-65 exemption requires federal AGI not exceeding $15,000 single, $25,000 joint or $19,000 head of household. State AGI does not substitute for federal AGI. Review allowed credits separately. Payments, withholding, mixed-source proration and final-return rounding are not modeled.
| Taxable Income | Rate |
|---|---|
| $0 - $3,750 | 0% |
| $3,750 - $4,900 | 2.5% |
| $4,900 - $7,200 | 3.5% |
| Over $7,200 | 4.5% |
Estimate only. Does not include federal tax, itemized deductions, credits, or other Oklahoma adjustments. Consult a tax professional for filing.
Sales Tax
Qualifying food and food ingredients have been exempt from Oklahoma state sales tax since August 29, 2024; local taxes still apply. Prepared food and other excluded products remain taxable. Qualifying prescription drugs are exempt. Combined rates shown are population-weighted July 1, 2026 estimates; actual item and local rates vary.
Oklahoma’s top marginal income-tax rate is 4.5%; its combined sales tax rate of 9.06% (July 1, 2026 population-weighted estimate) is among the highest in the nation due to extensive local taxes.
What is Oklahoma's income tax rate?
Oklahoma’s four 2026 rates are 0%, 2.5%, 3.5% and 4.5%. The joint/head-of-household schedule differs from the single schedule. Future revenue-triggered reductions are not assumed. The state and federal income bases, deduction method and exemption eligibility require review.
Does Oklahoma tax groceries?
Qualifying food and food ingredients have been exempt from Oklahoma state sales tax since August 29, 2024. Local taxes still apply; prepared food and excluded products have different treatment.
How does Oklahoma's sales tax compare?
Oklahoma's combined state and local sales tax averaged 9.06% in July 2026. Local cities and counties add substantial taxes to the state rate.
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