Updated October 16, 2026. Quick answer: Oklahoma lets each individual exclude retirement benefits up to $10,000, a list that includes an IRA under IRC Section 408, but its documents read do not say whether a beneficiary’s distribution from an inherited IRA qualifies: “Each individual may exclude their retirement benefits up to $10,000”.
Oklahoma at a glance
| Item | What the documents say |
|---|---|
| How the state taxes retirement-account income | Taxed as income, with an exclusion of up to $10,000 of retirement benefits per individual that includes IRAs |
| Do the state’s documents address beneficiaries? | Not addressed: the documents read do not mention inherited IRAs |
| Retirement exclusion or credit | Up to $10,000 of retirement benefits per individual (Schedule 511-A line 6), not more than the amount in federal AGI and reduced by any government retirement exclusion claimed on line 5 |
| Rate in the documents read | 2025 graduated schedule, top rate 4.75%: on taxable income over $7,200 (single) or over $14,400 (married filing jointly) |
| State inheritance or estate tax | Not mentioned in the documents read |
| Changed for 2026? | No 2026 change to this rule is stated in the documents read |
What the Oklahoma documents say
The Form 511 packet’s Other Retirement Income exclusion says “Each individual may exclude their retirement benefits up to $10,000”, but not more than the amount included in federal AGI.
The benefits must come from a listed plan and satisfy the Internal Revenue Code. The list includes “An individual retirement account, annuity or trust or simplified employee pension” under IRC Sec. 408 as well as employer plans under Sec. 401 and 457.
The exclusion is shared with the government retirement exclusion: “the exclusion on this line cannot exceed $10,000 minus” the amounts already claimed on line 5. For the line 5 exclusion the packet says the retirement income must be in your name.
Its survivor wording is narrow. The federal Civil Service Retirement exclusion covers benefits “including survivor benefits, paid in lieu of Social Security”. The Tax Commission’s rates page prints a graduated schedule whose top rate, 4.75%, applies to taxable income over $7,200 for single filers and over $14,400 for married filing jointly.
The federal 10-year rule and your Oklahoma tax year
IRS Publication 590-B says a beneficiary may be required to take the entire account balance by the “end of the 10th year following the year of the owner’s death”, with exceptions for certain beneficiaries. Because the balance generally has to come out within that window, the timing of each withdrawal decides which tax year it lands in. See the 10-year rule and annual RMDs, lump sum versus spreading withdrawals and inherited IRA rules.
Withholding and other state taxes
Whether a state withholds from a withdrawal is a separate rule: see state withholding on retirement withdrawals. For Oklahoma’s own death taxes, see inheritance tax by state.
What the documents do not say
- The documents read do not mention inherited IRAs or beneficiaries of a retirement account; the survivor wording concerns the federal Civil Service Retirement System.
- They do not say whether a beneficiary’s distribution from an inherited IRA counts as the beneficiary’s own retirement benefits for the line 6 exclusion.
- They say nothing about a deduction or credit for estate tax or income in respect of a decedent.
Common mistakes
- Assuming Oklahoma’s rule for your own retirement income also covers an account you inherited: read whether its documents address beneficiaries, and confirm the point with an Oklahoma preparer.
Related: state tax on inherited IRA withdrawals, state by state, whether Oklahoma taxes 401(k) and IRA withdrawals, Oklahoma retirement taxes, inheritance tax by state, inherited IRA rules, spouse versus non-spouse beneficiary rules, and state withholding on retirement withdrawals.
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Answer againSources
- 2025 Oklahoma Resident Individual Income Tax Forms and Instructions (Form 511 packet): https://oklahoma.gov/content/dam/ok/en/tax/documents/forms/individuals/current/511-Pkt.pdf
- Pay Taxes (2025 Tax Rates): https://oklahoma.gov/tax/individuals/pay-taxes.html
- IRS Publication 590-B, Distributions from Individual Retirement Arrangements (IRAs): https://www.irs.gov/pub/irs-pdf/p590b.pdf
Sources: the primary documents linked above, read on October 16, 2026. General information, not tax advice. Your own facts decide the outcome, and a tax professional or the state agency itself is the right place to confirm anything consequential.