Oklahoma Income Tax Calculator 2026

Calculate your Oklahoma state income tax for 2026. Oklahoma uses a progressive tax system with rates up to 4.5%.

$
Deduction

Federal Income Tax

$7,670.00

Effective Tax Rate

10.23%

Marginal Tax Rate

22%

FICA (SS + Medicare)

$5,737.50

Total Tax Burden

$13,407.50

After-Tax Income

$61,592.50

Tax Calculation Breakdown

Gross Income$75,000.00
Above-the-Line Deductions- $0.00
Adjusted Gross Income (AGI)$75,000.00
Standard Deduction- $16,100.00
Taxable Income$58,900.00
10% on $0.00 – $12,400.00$1,240.00
12% on $12,400.00 – $50,400.00$4,560.00
22% on $50,400.00 – $105,700.00$1,870.00
Federal Income Tax (before credits)$7,670.00
Federal Income Tax (after credits)$7,670.00
Social Security (6.2%)$4,650.00
Medicare (1.45%)$1,087.50
Total FICA$5,737.50
Total Tax$13,407.50
After-Tax Annual Income$61,592.50
Monthly Take-Home$5,132.71

Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.

Oklahoma Income Tax Overview

Oklahoma levies a graduated personal income tax that tops out at 4.5%, administered by the Oklahoma Tax Commission. The brackets are compressed by the standards of larger states, so the rate climbs through a handful of low introductory bands before reaching the 4.5% ceiling on the upper slice of taxable income. A single filer subtracts a $6,350 standard deduction first, which means the tax applies to less than gross wages. Residents owe Oklahoma tax on all income, while nonresidents are taxed only on income sourced inside the state.

This state tax sits on top of federal income tax rather than replacing any of it. The two systems are calculated separately, and Oklahoma generally begins from federal figures before applying its own deduction and brackets. Because only the dollars inside each band are taxed at that band's rate, your marginal rate, the rate on your next dollar, can be 4.5% while your effective rate across all income stays lower. Retirees get specific breaks: Social Security benefits are exempt from Oklahoma tax, and a portion of other retirement income can be excluded.

Oklahoma Income Tax Brackets 2026 (Single Filer)

Taxable Income Rate
$0 – $3,750 0.0%
$3,751 – $4,900 2.5%
$4,901 – $7,200 3.5%
Over $7,201 4.5%

Oklahoma Tax Snapshot

Sales Tax 0.045%
Avg. Property Tax 0.0085%
Minimum Wage $7.25/hr

Official Sources:

Oklahoma Income Tax FAQ

Who has to file an Oklahoma income tax return?
Oklahoma residents with gross income above the filing thresholds owe tax on all of their income, regardless of where it was earned. Nonresidents and part-year residents file when they have Oklahoma-source income, such as wages from work performed in the state or rent from Oklahoma property. The Oklahoma Tax Commission sets the exact thresholds, which track filing status and age.
How does Oklahoma's 4.5% top rate stack on top of federal tax?
The two are computed independently. You figure your federal liability under IRS brackets, then figure Oklahoma tax separately using the state's graduated schedule that caps at 4.5%, after subtracting the $6,350 standard deduction for a single filer. The state amount is in addition to, not a credit against, what you owe the IRS.
Is my effective Oklahoma rate really 4.5%?
Usually less. Because Oklahoma taxes income in bands, only the portion above the top threshold is hit with 4.5%, while lower dollars are taxed at smaller rates, and the first $6,350 escapes through the standard deduction. The result is an effective rate, your total state tax divided by your income, that lands under the 4.5% marginal figure.
Does Oklahoma tax retirement income the same as wages?
No, retirees get meaningful relief. Social Security benefits are fully exempt from Oklahoma income tax, and the state allows a partial exclusion for other qualifying retirement income such as pensions and IRA distributions. Wages and most other income remain subject to the regular graduated rates up to 4.5%.