Updated October 8, 2026. Quick answer: No. Oklahoma is a common law state. At divorce, 43 O.S. section 121 has the court “make such division between the parties as may appear just and reasonable” for property acquired jointly during the marriage, and at death the survivor’s protected share is tied to property acquired by joint industry. The IRS lists nine community property states.
Oklahoma community property at a glance
| Item | What the documents say |
|---|---|
| Regime | Common law |
| At divorce | Jointly acquired property is divided as just and reasonable; premarital property stays with its owner (43 O.S. 121) |
| At a spouse’s death | A right of election to a one-half interest in property acquired by joint industry; dower and courtesy are abolished (84 O.S. 44, 84 O.S. 214) |
| Federal basis at the first death | A qualified joint interest between spouses: one-half is included in the estate and steps up |
| Source | Oklahoma State Courts Network (Oklahoma Supreme Court), Oklahoma Statutes Citationized; IRS Publications 551 and 555; 26 U.S.C. 1014 |
What the Oklahoma statutes say
Oklahoma’s divorce section speaks of property acquired jointly during the marriage, whichever spouse holds title, and of a division the court finds “a fair and just division thereof”. It confirms to each spouse the property owned before the marriage.
At divorce in Oklahoma
The standard is just and reasonable; the section does not set an equal split.
At a spouse’s death in Oklahoma
Oklahoma’s protection is narrower than the percentage-of-estate shares in other states. Section 44 gives “right of election to take the one-half (1/2) interest in the property” that was “property acquired by the joint industry of the husband and wife” during the marriage. Section 214 says “Dower and courtesy are abolished.”
What it does to basis when the first spouse dies
Because Oklahoma is not on the IRS’s list of community property states, a couple’s basis at the first death depends on title. IRS Publication 551 says to “Include one-half of the value of a qualified joint interest” in the decedent’s gross estate, and the survivor’s basis is the cost of the survivor’s own half plus the basis in the half inherited. Property in the decedent’s name alone is different: 26 U.S.C. 1014(a) gives the heir a basis equal to the property’s fair market value at the date of the decedent’s death.
Computed illustration, not tax advice: suppose an Oklahoma couple paid $100,000 for shares held as a qualified joint interest, and the shares are worth $400,000 when one spouse dies. The survivor’s basis is the total of two halves: $200,000 for the half that steps up plus $50,000 as the cost of the survivor’s own half, which makes $250,000. A sale at $400,000 would then show a gain of $150,000. In a community property state the same facts would give a basis of the whole $400,000. CMG’s common law step-up page goes through the difference.
What the documents do not say
- The sections read do not state a rule for a couple who moved to Oklahoma.
Common mistakes
- Expecting a share of the decedent’s separate property; the election reaches property acquired by the joint industry of the spouses.
- Assuming the answer in this state settles it for a couple who move; the rules depend on the state where the spouses are domiciled and, for property in a trust, on the trust.
Related: why only half steps up in a common law state, Oklahoma retirement taxes, and Oklahoma probate cost.
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Answer againSources
- 43 O.S. section 121 Restoration of Maiden or Former Name: Alimony: Property Division, Oklahoma Statutes: https://www.oscn.net/applications/oscn/DeliverDocument.asp?CiteID=71844
- 84 O.S. section 44 Property Acquired by Joint Industry, Oklahoma Statutes: https://www.oscn.net/applications/oscn/DeliverDocument.asp?CiteID=72952
- 84 O.S. section 214 Abolishment of Dower and Courtesy, Oklahoma Statutes: https://www.oscn.net/applications/oscn/DeliverDocument.asp?CiteID=73030
- IRS Publication 551, Basis of Assets (December 2025): https://www.irs.gov/pub/irs-pdf/p551.pdf
- 26 U.S.C. 1014, Basis of property acquired from a decedent (United States Code, 2024 Edition): https://www.govinfo.gov/link/uscode/26/1014?link-type=html
Sources: the primary documents linked above, read on October 8, 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.