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%.
The Oklahoma tax gauge at $100,000
Oklahoma
$100,000 · Single · TY2026Oklahoma 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| Taxable income | Marginal rate |
|---|---|
| $0 – $3,749 | 0% |
| $3,750 – $4,899 | 2.5% |
| $4,900 – $7,199 | 3.5% |
| $7,200 and above | 4.5% |
Married filing jointly
Standard deduction $12,700 · Personal exemption $2,000| Taxable income | Marginal rate |
|---|---|
| $0 – $7,499 | 0% |
| $7,500 – $9,799 | 2.5% |
| $9,800 – $14,399 | 3.5% |
| $14,400 and above | 4.5% |
Married filing separately
Standard deduction $6,350 · Personal exemption $1,000| Taxable income | Marginal rate |
|---|---|
| $0 – $3,749 | 0% |
| $3,750 – $4,899 | 2.5% |
| $4,900 – $7,199 | 3.5% |
| $7,200 and above | 4.5% |
Head of household
Standard deduction $9,350 · Personal exemption $1,000| Taxable income | Marginal rate |
|---|---|
| $0 – $7,499 | 0% |
| $7,500 – $9,799 | 2.5% |
| $9,800 – $14,399 | 3.5% |
| $14,400 and above | 4.5% |
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.
What Oklahoma costs at different incomes
Single filer, standard deduction, no dependents. Rank is out of 50 jurisdictions, lowest tax first.
| Gross income | Taxable income | State tax | Effective rate | Per month | National rank | vs median state |
|---|---|---|---|---|---|---|
| $50,000 | $42,650 | $1,705 | 3.41% | $142 | 35th of 50 | +$260 |
| $75,000 | $67,650 | $2,830 | 3.77% | $236 | 31st of 50 | +$282 |
| $100,000 | $92,650 | $3,955 | 3.95% | $330 | 28th of 50 | +$227 |
| $150,000 | $142,650 | $6,205 | 4.14% | $517 | 28th of 50 | +$139 |
| $250,000 | $242,650 | $10,705 | 4.28% | $892 | 25th of 50 | −$54 |
| $500,000 | $492,650 | $21,955 | 4.39% | $1,830 | 24th of 50 | −$176 |
| $1,000,000 | $992,650 | $44,455 | 4.45% | $3,705 | 23rd of 50 | −$311 |
Oklahoma income tax calculator
Change the income, filing status and number of dependents to see the bracket-by-bracket breakdown.
- Income
- $100,000
- Standard deduction
- $6,350
- Exemptions
- $1,000
- Taxable income
- $92,650
Bracket by bracket
| Taxable income in bracket | Rate | Income taxed | Tax |
|---|---|---|---|
| $0 – $3,749 | 0% | $3,750 | $0.00 |
| $3,750 – $4,899 | 2.5% | $1,150 | $28.75 |
| $4,900 – $7,199 | 3.5% | $2,300 | $80.50 |
| $7,200 and above | 4.5% | $85,450 | $3,845.25 |
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.
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.
| 2025 | 2026 | |
|---|---|---|
| Top marginal rate | 4.75% | 4.5% |
| Structure | graduated | graduated |
| 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
- CutEffective · H.B. 2764 (2025)
Six brackets (0.25%-4.75%) replaced with a 0% bracket plus 2.5%, 3.5% and 4.5% rates; top rate cut from 4.75% to 4.5%.
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 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.
- Retirement benefits exclusion — up to $10,000. Per individual, limited to the amount included in federal AGI, and only for the listed public retirement systems.
Not modelled: Oklahoma's separate exclusion for military retirement is not recorded here.
Source: Oklahoma Tax Commission — Help 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.
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
- Oklahoma capital gain deduction (Schedule 511-A line 12, Form 561) — A full deduction for qualifying gains receiving capital treatment: 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, LLC or partnership owned at least two uninterrupted years; or on property sold as part of the sale of all or substantially all the assets of an Oklahoma headquartered business, where the property was owned at least two uninterrupted years.
- Gains on exempt government obligations — The capital gain or loss from the sale of a U.S. Government obligation is exempt, as is the gain on a state or municipal bond where the statute authorising its issuance so provides.
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 Commission — 2025 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
- H.B. 2764 (2025) replaced the six-bracket schedule with a zero-rate bracket plus three rates of 2.5%, 3.5% and 4.5%, effective for tax year 2026.
- The first $3,750 of taxable income for single and married-separate filers ($7,500 for joint, head-of-household and surviving-spouse filers) is taxed at 0%.
- The top 4.5% rate begins at $7,200 of taxable income for single filers and $14,400 for joint and head-of-household filers.
- The standard deduction ($6,350 single / $12,700 joint / $9,350 head of household) is fixed at pre-2018 federal levels and is not indexed.
- H.B. 2764 also creates a revenue-trigger mechanism: all rates fall by a further 0.25 percentage point whenever certain revenue-growth conditions certified by the State Board of Equalization are met, a path the legislature describes as leading eventually to repeal of the individual income tax (62 O.S. sec. 34.103).
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.Oklahoma Tax CommissionState revenue department2026 Oklahoma Income Tax Withholding Tables (Packet OW-2, revised 11-2025)Retrieved
- 2.Tax FoundationResearch organisation (cross-check)State Individual Income Tax Rates and Brackets, 2026Retrieved
- 3.Oklahoma Tax Commission, Tax Policy DivisionState revenue departmentSummary of 2025 Tax Legislation (H.B. 2764)Retrieved
- 4.Oklahoma Tax CommissionState revenue department2025 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.