Oklahoma Income Tax Calculator 2026
Calculate your combined federal and Oklahoma state income tax for 2026. See your federal brackets, Oklahoma tax, effective rate, and take-home pay — all calculated privately in your browser.
How the Oklahoma Income Tax Calculator Works
The Oklahoma income tax calculator estimates your 2026 federal income tax and Oklahoma state income tax from your annual income and filing status. Oklahoma uses its own standard deduction and a $1,000 personal exemption, then applies the 2026 brackets set by HB 2764, so the state figure is calculated separately from the federal one. Everything runs privately in your browser.
Oklahoma Income Tax: Brackets Up to 4.5% for 2026
For 2026 Oklahoma’s top rate is 4.5%, down from 4.75% in 2025. The brackets for single and married-filing-separately filers are:
- 0% on Oklahoma taxable income up to $3,750
- 2.5% from $3,750 to $4,900
- 3.5% from $4,900 to $7,200
- 4.5% above $7,200
Married filing jointly and head of household use doubled thresholds ($7,500, $9,800 and $14,400). Combined with federal rates of 10% to 37%, the highest combined marginal rate is 41.5%.
Oklahoma Deductions and a Worked Example
Oklahoma’s 2026 standard deduction is $6,350 (single), $9,350 (head of household) or $12,700 (married filing jointly), plus a $1,000 personal exemption per filer. A single filer earning $60,000 has $60,000 − $6,350 − $1,000 = $52,650 of Oklahoma taxable income and owes about $2,155 in Oklahoma tax (about 3.6% effective). At $100,000 the Oklahoma tax is about $3,955. This calculator does not include dependent exemptions or Oklahoma itemized deductions.
Tips to Lower Your Oklahoma Tax
Pre-tax retirement contributions such as a traditional 401(k) reduce federal AGI, which is where Oklahoma taxable income starts. The 2026 401(k) limit is $24,500 ($32,500 with catch-up for age 50+). This page treats your income as wages with no pre-tax deductions; the Oklahoma paycheck calculator uses the same 2026 state rules and lets you enter pre-tax deductions.
Tips for Getting Accurate Results
For the most accurate results, use up-to-date numbers from official sources. Double-check your inputs before calculating — small errors in the starting values can lead to significantly different outputs. If you are comparing scenarios, keep all variables the same except the one you are testing. Save or screenshot your results for future reference. This calculator uses standard formulas and is designed to give you a reliable quick estimate, though professional advice may be needed for complex situations.
Last updated 2026-10-06. Source: Oklahoma HB 2764 and Oklahoma Tax Commission 2026 rates.
Frequently Asked Questions
What is Oklahoma’s top income tax rate?
Oklahoma’s top income tax rate is 4.5% for 2026 (HB 2764), down from 4.75% in 2025. The brackets are 0%, 2.5%, 3.5% and 4.5%.
How does Oklahoma’s income tax work?
Oklahoma subtracts its own standard deduction ($6,350 single, $9,350 head of household, $12,700 married filing jointly) and a $1,000 personal exemption per filer, then taxes the rest progressively: for single filers 0% up to $3,750, 2.5% to $4,900, 3.5% to $7,200 and 4.5% above. Joint and head-of-household thresholds are doubled.
How much Oklahoma tax will I pay on $60,000?
A single filer with $60,000 of wages has $52,650 of Oklahoma taxable income and owes about $2,155 in Oklahoma income tax for 2026, about 3.6% of gross. Federal tax is calculated separately.
Does Oklahoma use the federal standard deduction?
No. Oklahoma has its own, smaller standard deduction plus a $1,000 personal exemption. If you itemize on your federal return you must also itemize on your Oklahoma return. This calculator uses the Oklahoma standard deduction and does not include dependent exemptions.
How can I lower my Oklahoma state income tax?
Traditional 401(k) and other pre-tax payroll contributions reduce federal AGI, the starting point for Oklahoma taxable income, so they lower both federal and Oklahoma tax.