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Tax year 2026Last verified

Oklahoma Income Tax Rates & Brackets — 2026

Oklahoma has a graduated income tax with 4 brackets in 2026, running from 2.5% to 4.5%. A single filer on $100,000 owes about $3,955 — an effective rate of 3.95%.

Lowest rate
2.5%
Top rate
4.5%
Structure
Graduated
Brackets
4
Standard deduction
$6,350
Single filer
Local income tax
No
Calculate your Oklahoma taxJump to bracketsSources

The Oklahoma tax gauge at $100,000

Oklahoma

$100,000 · Single · TY2026
Estimated state tax
$3,955
Effective rate
3.95%
Top marginal rate
4.5%
Rank of the states
28th
of 50 · lowest first
Burden relative to the highest-taxing state at this income+$227 vs median state

Oklahoma tax brackets for 2026

Every filing status, as published by Oklahoma Tax Commission. Rates apply to Oklahoma taxable income — that is income after the deductions and exemptions shown on each card.

Single

Standard deduction $6,350 · Personal exemption $1,000
Oklahoma 2026 income tax brackets for Single filers
Taxable incomeMarginal rate
$0 – $3,7490%
$3,750 – $4,8992.5%
$4,900 – $7,1993.5%
$7,200 and above4.5%

Married filing jointly

Standard deduction $12,700 · Personal exemption $2,000
Oklahoma 2026 income tax brackets for Married filing jointly filers
Taxable incomeMarginal rate
$0 – $7,4990%
$7,500 – $9,7992.5%
$9,800 – $14,3993.5%
$14,400 and above4.5%

Married filing separately

Standard deduction $6,350 · Personal exemption $1,000
Oklahoma 2026 income tax brackets for Married filing separately filers
Taxable incomeMarginal rate
$0 – $3,7490%
$3,750 – $4,8992.5%
$4,900 – $7,1993.5%
$7,200 and above4.5%

Head of household

Standard deduction $9,350 · Personal exemption $1,000
Oklahoma 2026 income tax brackets for Head of household filers
Taxable incomeMarginal rate
$0 – $7,4990%
$7,500 – $9,7992.5%
$9,800 – $14,3993.5%
$14,400 and above4.5%

How the maths actually works

Rates are marginal: the 4.5% top rate applies only to the dollars above the top threshold, never to your whole income. A single filer on $100,000 in Oklahoma subtracts $7,350 of deductions and exemptions, then pays each bracket in turn on $92,650 of taxable income — $3,955 in all, or 3.95% of gross income. Marginal vs effective rate, explained.

A single filer on $100,000 in Oklahoma, bracket by bracket
0% on $3,750 = $02.5% on $1,150 = $293.5% on $2,300 = $814.5% on $85,450 = $3,8454.5%$0$92,650 taxable

What Oklahoma costs at different incomes

Single filer, standard deduction, no dependents. Rank is out of 50 jurisdictions, lowest tax first.

Oklahoma estimated income tax at seven income levels, 2026
Gross incomeTaxable incomeState taxEffective ratePer monthNational rankvs median state
$50,000$42,650$1,7053.41%$14235th of 50+$260
$75,000$67,650$2,8303.77%$23631st of 50+$282
$100,000$92,650$3,9553.95%$33028th of 50+$227
$150,000$142,650$6,2054.14%$51728th of 50+$139
$250,000$242,650$10,7054.28%$89225th of 50−$54
$500,000$492,650$21,9554.39%$1,83024th of 50−$176
$1,000,000$992,650$44,4554.45%$3,70523rd of 50−$311
Oklahoma effective and marginal rates as income rises (single filer)
Effective rateMarginal rate
0.0%3.0%6.0%$20K$60K$100K$200K$500KMarginal 4.50%Effective 4.39%

Oklahoma income tax calculator

Change the income, filing status and number of dependents to see the bracket-by-bracket breakdown.

Oklahoma tax
$3,955
Effective rate
3.95%
Marginal rate
4.5%
Per month
$330
Income
$100,000
Standard deduction
$6,350
Exemptions
$1,000
Taxable income
$92,650

Bracket by bracket

Taxable income in bracketRateIncome taxedTax
$0 – $3,7490%$3,750$0.00
$3,750 – $4,8992.5%$1,150$28.75
$4,900 – $7,1993.5%$2,300$80.50
$7,200 and above4.5%$85,450$3,845.25
Rank among all jurisdictions
28th of 50
lowest tax first
Versus the median state
+$192
median is $3,763
Versus the lowest
+$3,955
Alaska charges $0

This estimates state income tax only, using the standard deduction and personal/dependent exemptions. It does not model itemised deductions, most credits, retirement-income exclusions, or local income taxes. Your actual bill will differ. See how we calculate this and Oklahoma's full brackets and sources.

Oklahoma versus its neighbours

State income tax owed by a single filer on $100,000 in 2026.

Income tax on $100,000, Oklahoma and bordering states
Oklahoma: $3,955Oklahoma$3,955Colorado: $3,692Colorado$3,692Kansas: $4,780Kansas$4,780Missouri: $3,763Missouri$3,763Arkansas: $3,212Arkansas$3,212Texas: $0Texas$0New Mexico: $3,569New Mexico$3,569

What changed since 2025

Oklahoma's income tax changed between 2025 and 2026. A single filer on $100,000 owes $258 less than in 2025.

Oklahoma year over year, 2025 compared with 2026
20252026
Top marginal rate4.75%4.5%
Structuregraduatedgraduated
Standard deduction (single)$6,350$6,350
Tax on $100,000 (single)$4,212$3,955

The 2025 rules are kept in full on the Oklahoma 2025 tax year page, for amended returns and late filings.

Recent legislated changes

Retirement income

How Oklahoma treats retirement income in tax year 2025. This is verified separately from the rate schedule above and can be for a different tax year.

Social Security
Not taxed
Private pension
Taxed as ordinary income
401(k) / IRA
Taxed as ordinary income

Social Security benefits included in federal AGI are subtracted on the Oklahoma return.

Each individual may exclude up to $10,000 of qualifying retirement benefits, not exceeding the amount included in federal AGI. Qualifying systems are the US civil service, the Oklahoma Public Employees Retirement System, the Oklahoma Teacher's Retirement System, the Oklahoma Law Enforcement Retirement System, the Oklahoma Firefighters Pension and Retirement System, the Oklahoma Police Pension and Retirement System, and county or municipal employee retirement systems.

Private 401(k), 403(b) and traditional IRA distributions do not fall within the listed qualifying systems.

Not modelled: Oklahoma's separate exclusion for military retirement is not recorded here.

Source: Oklahoma Tax CommissionHelp Center: Individual Income Tax (retrieved 2026-09-04). Compare every state.

Capital gains

How Oklahoma taxes a capital gain in tax year 2025. This is verified separately from the rate schedule above and can be for a different tax year.

Long-term gain, top rate
4.75%
26th of 51
Short-term gain, top rate
4.75%
same as long-term
How it is taxed
Taxed as ordinary income

Oklahoma taxes gains on the ordinary schedule, up to 4.75%, but a deduction removes the tax entirely for gains on Oklahoma assets. The deduction is asset-specific, so the ordinary rate is the rate for a gain on anything else.

The Oklahoma capital gain deduction reaches "net capital gains, as defined under IRC Sec. 1222(11)", a long-term measure, so a short-term gain is taxed at the full ordinary rate.

Oklahoma starts from federal adjusted gross income and takes the deduction as a subtraction on Schedule 511-A.

Exclusions that reach only certain assets

These do not change the rates above, which are the rates on a gain that qualifies for no exclusion — a share of stock, for instance.

Not modelled: Whether a gain qualifies for the deduction turns on the asset's Oklahoma location or the company's Oklahoma headquarters and on uninterrupted holding periods of two or five years, none of which this dataset holds.

Source: Oklahoma Tax Commission2025 Oklahoma Resident Individual Income Tax Packet (Form 511) — Schedule 511-A, item A12, Oklahoma Capital Gain Deduction (retrieved 2026-09-19). Compare every state.

Local income taxes

No Oklahoma city or county levies an individual income or earnings tax.

What else to know about Oklahoma

Capital gains

Capital gains are taxed as ordinary income, but the Oklahoma capital gain deduction remains available: Schedule 511-A line 12 (Form 561) fully deducts qualifying gains on real or tangible personal property located in Oklahoma owned at least five uninterrupted years, on stock or an ownership interest in an Oklahoma headquartered company owned at least two uninterrupted years, and on property sold as part of the sale of substantially all the assets of an Oklahoma headquartered business.

What our figures leave out

Sources

  1. 1.Oklahoma Tax CommissionState revenue department
    2026 Oklahoma Income Tax Withholding Tables (Packet OW-2, revised 11-2025)
    Retrieved
  2. 2.Tax FoundationResearch organisation (cross-check)
    State Individual Income Tax Rates and Brackets, 2026
    Retrieved
  3. 3.Oklahoma Tax Commission, Tax Policy DivisionState revenue department
    Summary of 2025 Tax Legislation (H.B. 2764)
    Retrieved
  4. 4.Oklahoma Tax CommissionState revenue department
    2025 Oklahoma Resident Individual Income Tax Forms and Instructions (Form 511 Packet)
    Retrieved

Figures on this page were last checked against these sources on . Found something wrong? Report it.