Oklahoma Income Tax Calculator
Oklahoma runs six income tax brackets for 2025 — but the top 4.75% rate kicks in at just $7,200 of taxable income, so most working Oklahomans pay close to the top rate on most of their wages. That changes in 2026 when HB 2764 collapses everything into three brackets and cuts the top rate to 4.5%. No local income tax anywhere in the Sooner State, and generous retirement exemptions. This calculator covers it all.
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How Oklahoma Income Tax Actually Works
Oklahoma’s individual income tax runs six brackets for the 2025 tax year, but describing it as a “six-bracket system” can be misleading about how it actually functions in practice. The brackets step through rates of 0.25%, 1%, 2%, 3%, and 4% across the first $7,200 of taxable income — a band that’s narrow enough that someone earning $65,000 passes through all five lower brackets in the first few hundred dollars of their taxable income and then pays 4.75% on roughly $50,000 or more. In effect, Oklahoma functions much like a near-flat 4.75% tax for most working adults, with only a small amount of income sheltered in the lower brackets. This structure is similar to Missouri’s — technically graduated, but practically speaking the top rate dominates for almost every non-retiree filer. A key detail: unlike the federal government and most flat-tax states, Oklahoma does not adjust its bracket thresholds for inflation. The same $7,200 threshold that triggered the top rate a decade ago still does so today, meaning that every year of wage growth pushes a larger percentage of your income into the top bracket in real terms.
The good news for Oklahomans is a structural change coming in 2026. House Bill 2764, signed during the 2025 legislative session, collapses the six brackets into three (0.25%, 2.75%, and 4.5%) and reduces the top rate by 0.25 percentage points — effective January 1, 2026 for income earned that year. It also boosts the standard deduction to $7,350 for single filers and $14,700 for married couples filing jointly. Returns for 2025 income — the ones filed in spring 2026 — are still governed by the current six-bracket structure and $6,350/$12,700 standard deductions. Oklahoma’s current standard deduction also includes a $1,000 personal exemption per person: yourself, your spouse, and each qualifying dependent each reduce taxable income by $1,000, which is separate from and in addition to the standard deduction.
Retirement and military income treatment: Social Security is fully exempt from Oklahoma income tax with no income phase-out and no age requirement. For other retirement income — 401(k) distributions, IRA withdrawals, pensions, and annuities — Oklahoma allows a deduction of up to $10,000 per taxpayer, meaning a married couple where both spouses have retirement income can each deduct $10,000 for a combined $20,000 reduction in taxable income. Military retirees get an even more generous deal: they may deduct the greater of $10,000 or 75% of their military retirement pay, which for most career military retirees means the large majority of their pension is exempt. Active-duty military pay is fully exempt. Oklahoma has no local income tax at the city or county level anywhere in the state, so the six-bracket state schedule is the only income tax Oklahomans face.
Frequently Asked Questions
Oklahoma uses six progressive brackets for 2025: 0.25% on the first $1,000 of taxable income, 1% from $1,001 to $2,500, 2% from $2,501 to $3,750, 3% from $3,751 to $4,900, 4% from $4,901 to $7,200, and 4.75% on all income above $7,200. The same thresholds apply to every filing status. Because the top 4.75% rate starts at just $7,200 of taxable income, most working Oklahomans pay the top rate on the vast majority of their wages.
Yes. House Bill 2764, signed in 2025, restructures Oklahoma’s income tax effective January 1, 2026. The six brackets will collapse into three (0.25%, 2.75%, 4.5%), and the top rate will drop from 4.75% to 4.5%. The standard deduction also increases under HB 2764, to $7,350 for single filers and $14,700 for married filing jointly.
No. Oklahoma allows a full deduction for any Social Security benefits included in your federal adjusted gross income. Social Security is effectively exempt from Oklahoma income tax at every income level with no phase-out.
Yes. Oklahoma allows each taxpayer to deduct up to $10,000 of qualifying retirement income — including 401(k) distributions, IRA withdrawals, pensions, and annuities — from their Oklahoma taxable income. Military retirees may deduct the greater of $10,000 or 75% of their military retirement pay, whichever is larger.
The Oklahoma standard deduction for 2025 is $6,350 for single filers and married filing separately, $9,350 for head of household, and $12,700 for married filing jointly. Oklahoma’s standard deduction is not adjusted for inflation, unlike the federal standard deduction, meaning the real value of this deduction erodes over time.
No. Oklahoma does not permit any city or county to levy a local income tax on wages. Oklahoma City, Tulsa, Norman, and every other Oklahoma municipality are income-tax-free at the local level. The six-bracket state schedule is the only income tax Oklahoma residents face.
Methodology: Calculations use Oklahoma’s 2025 six-bracket income tax schedule (0.25%–4.75%, per Oklahoma Tax Commission), the 2025 standard deduction ($6,350 single/MFS, $9,350 HOH, $12,700 MFJ), a $1,000 personal exemption per filer and dependent, a $10,000 retirement income deduction per taxpayer, a military retirement deduction equal to the greater of $10,000 or 75%, the 2025 IRS federal tax brackets and Child Tax Credit rules, and 2025 Social Security (6.2% to the $176,100 wage base) and Medicare (1.45% + 0.9% additional Medicare tax) rates per IRS.gov. Social Security benefits and active-duty military pay are fully exempt from Oklahoma income tax. Note: HB 2764 restructures Oklahoma’s income tax to three brackets and reduces the top rate to 4.5% effective January 1, 2026. Oklahoma permits no local income tax. This tool provides estimates for planning purposes only and is not tax, legal, or financial advice. Last reviewed for accuracy: June 2026.