
Oklahoma Step-Up in Basis
Oklahoma step-up in basis: inherited assets reset to date-of-death value under IRC 1014, Oklahoma taxes no inheritance, and gain is taxed at sale.
When you inherit property in Oklahoma, its cost basis resets to the fair market value on the owner's date of death. That reset comes from Internal Revenue Code Section 1014, and it wipes out the capital gains tax on everything the asset gained while the owner held it. You pay tax on growth after the death, and only when you sell.
The basis rule is federal. No Oklahoma statute writes one. What Oklahoma adds is the wrapper: two death taxes that were repealed in 2010, an inventory that goes back to the district court rather than staying in a lawyer's file, a joint tenancy that exists only when a deed says so, a documentary stamp tax that reaches a sale and not an inheritance, and a capital gain deduction whose five-year clock starts over on the heir.
What The Step-Up Does, And Where The Rule Comes From
Basis is what the tax system treats as your cost in an asset. When you sell, you pay capital gains tax on the sale price minus that basis. The step-up changes the starting number.
The problem it solves
Take an example. Your father bought a house in Norman in 2001 for $96,000. At his death in 2026 it is worth $312,000. Had he signed the deed over to you during his life, you would take his $96,000 cost, called a carryover basis, and a sale at $312,000 would show a $216,000 gain.
Because you inherited the house instead, your basis steps up to $312,000. Sell at $312,000 and the gain is zero. Sell two years later for $339,000 and you report $27,000 rather than $243,000. Those figures illustrate the mechanism and are not a computation of anyone's tax.
The rule is federal
Internal Revenue Code Section 1014(a) gives property acquired from a decedent a basis equal to "the fair market value of the property at the date of the decedent's death," with three alternatives: the Section 2032 alternate valuation figure, the Section 2032A special-use figure for farm and closely held business real property, and the decedent's own basis in land to the extent of a qualified conservation easement exclusion under Section 2031(c).
The adjustment runs both ways. An asset worth less at death than the owner paid steps down to that lower figure, and the paper loss the owner could have claimed disappears. Holding a depreciated asset until death throws away a deduction that a lifetime sale would have captured.
Do you need probate in Oklahoma?
Answer a few questions to see whether Oklahoma probate is required and which process applies.
Take the 2-minute assessmentOklahoma Charges No Estate Tax And No Inheritance Tax
Take the two taxes apart, because heirs mix them up constantly.
- Nothing is charged for receiving an inheritance. Oklahoma has no inheritance tax, no inheritance tax return, and no inheritance tax waiver.
- The estate tax chapter is gone. Section after section of the Oklahoma Estate Tax Act, 68 O.S. §§ 801 through 826, prints in the current compilation under one line: "Repealed by Laws 2006, 2nd Extraordinary Session, c. 42, § 6, eff. Jan. 1, 2010." Two sections in that run survive and neither charges anything. Section 804 is a pick-up provision that levies an additional tax only to absorb the federal credit for state death taxes under 26 U.S.C. § 2011, computed off the repealed sections, and § 804.1 is the lien rule below.
- No lien, and no court order to clear one. 68 O.S. § 804.1 says that for deaths on or after January 1, 2010 no lien related to estate tax attaches to any property passing through the estate of a decedent, by joint tenancy, or otherwise, and that no order exempting estate tax liability is necessary to authorize release of the property or for the title of real property to be marketable.
- Oklahoma income tax reaches the gain. That is the tax an heir actually meets, and it arrives on the sale, not on the inheritance.
The repeal shows up in the paperwork a surviving joint tenant files. 58 O.S. § 912 lets a surviving joint tenant clear the record by filing a certified death certificate and an affidavit with the county clerk, and paragraph C(3) of that section still asks for a Tax Commission waiver or release of the estate tax lien where the joint tenancy is anything other than two spouses. The same paragraph then closes with the sentence that settles it: for deaths occurring on or after January 1, 2010, no release of estate tax liability is necessary. Where there is no administration at all, 58 O.S. § 911 gives a remainderman or a surviving joint tenant a district court petition to have the fact of the death judicially determined, on ten days' notice and one newspaper publication.
Only the federal estate tax can apply, and it reaches a narrow band of estates. Internal Revenue Code Section 2010(c)(3) sets the exclusion at $15,000,000, indexed for inflation for a decedent dying in a calendar year after 2026, and portability can carry a first spouse's unused amount to the survivor if the first estate files a return and elects it. Estate tax and basis get conflated all the time, so read the federal estate tax rules for Oklahoma estates separately from this page. That one decides whether the estate owes a transfer tax. This one decides what you pay when you sell.
Only Part Of A Jointly Owned Oklahoma Home Steps Up
This is where Oklahoma couples get the wrong answer, and the first place to look is the deed.
Oklahoma presumes nothing
60 O.S. § 74, "Joint tenancy and tenancy by entirety," describes a joint interest as one owned by several persons in equal shares, created by a single instrument, will or transfer "when expressly declared in the instrument, will or transfer to be a joint tenancy," or as between husband and wife a tenancy by entirety or joint tenancy as the grantor elects. A tenancy by entirety can only be created between husband and wife.
Three consequences follow, and each one changes the basis answer:
- No survivorship without the words. Oklahoma runs no dated presumption in favor of joint tenancy. Two siblings on a deed that says nothing about survivorship do not hold as joint tenants, so nothing passes automatically and the decedent's share travels through the estate instead.
- The granting clause wins. Where a deed grants joint tenancy or tenancy by entirety in the granting clause, § 74 makes that clause control over an inconsistent habendum clause.
- Probate proves the death. Where a joint tenant dies leaving an estate subject to probate, § 74 makes a certified copy of letters testamentary or of administration prima facie evidence of the death.
Pull the recorded deed and read the granting clause before you assume how an Oklahoma property passed. The answer decides whether half the house steps up, all of it does, or none of it does yet.
How much actually steps up
The federal rule decides that, and it splits by who the joint owners are.
- A married couple who are the only two joint tenants. Internal Revenue Code Section 2040(b) calls that a qualified joint interest and includes one half of the value in the deceased spouse's gross estate whoever furnished the purchase money. One half steps up. The survivor's half keeps its original cost, and the survivor carries a mixed basis into any later sale.
- Anyone else holding as joint tenants. Section 2040(a) applies the consideration-furnished rule. The gross estate includes the whole value except the part shown to have originally belonged to the other owner and never to have come from the decedent for less than full consideration. A child who contributed nothing to a house held jointly with a parent sees the full value included in the parent's estate, and the full value becomes the basis.
Oklahoma is not a community property state
IRS Publication 551 names the nine community property states as Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington and Wisconsin. Oklahoma is not on the list, so the full step-up on the first death that a community property state can produce is not available on ordinary Oklahoma title.
Section 74 carries one line that reads like an exception and is not. It says joint tenancies "may be created by or for persons who have elected to become bound under any community property act now in existence or which may hereafter be enacted." That sentence is about how Oklahoma title may be created. It changes nothing about federal basis.
Neighboring Texas is a community property state, and couples move north. Titles 58, 60 and 84 of the Oklahoma Statutes carry no version of the Uniform Disposition of Community Property Rights at Death Act, so Oklahoma has no chapter that carries the character of Texas community property into an Oklahoma estate. Whether the survivor's half of that property takes a federal step-up under Internal Revenue Code Section 1014(b)(6) is a federal question that turns on how the property was acquired and held. Bring the deed history and the state of domicile at the time to a CPA rather than assuming either answer. The rest of what a spouse takes here is set out in Oklahoma surviving spouse rights.
Where The Date-Of-Death Value Gets Written Down In Oklahoma
The step-up is worth exactly as much as your proof of the number.
The inventory goes back to the court
58 O.S. § 281(A), "Inventory of estate," gives the personal representative two months from the date of the order of appointment to make and return to the court an inventory and appraisement of the estate that has come to his possession or knowledge, designating the homestead and the exempt personal property. The court may extend the time for good cause shown, and § 288 lets it revoke letters and hold the representative liable on the bond for an injury caused by a late return.
Returning it to the court is the useful part. An Oklahoma inventory lands in a district court file that an heir can pull years later, which is not true in every state.
Read subsection B before you rely on the number
Section 281(B) says the personal representative "may fulfill the appraisement requirement by stating his opinion of the value of the estate described in the inventory." A family estimate typed into a filing satisfies the statute. It is a weak document to hand the IRS as proof of a $312,000 basis.
Subsection C is the lever. The court must order an appraisement on the written demand of an heir, devisee, legatee, a creditor who has filed a claim, a guardian, a conservator, a guardian ad litem, or any other person with an interest in the estate. Once ordered, 58 O.S. § 282 has the judge appoint three disinterested persons, any two of whom may act, paid reasonable compensation capped at $75.00 per day except on court order. 58 O.S. § 283 puts them under oath to appraise truly, honestly and impartially, and requires each article to be set down separately with its value in dollars and cents.
If you are an heir who expects to sell, that written demand is the cheapest move available to you, and the window to make it is while the estate is open. The job itself is covered in Oklahoma executor duties, and the Oklahoma probate guide explains when a personal representative is appointed at all.
Title 58 does not name a valuation date
Read §§ 281 through 283 looking for the words "date of death" and you will not find them. Oklahoma tells the appraisers to value the property and leaves the valuation date to the tax rules that need one. Federal law supplies it. So put the date in writing when you engage anyone: ask for an opinion of fair market value as of the date of death, and ask that the date appear on the face of the report that goes on the inventory.
What to gather, by asset
- Real estate. A written appraisal as of the date of death. A county assessor's value is not a date-of-death appraisal and is the weakest paper in the file.
- Minerals and royalty interests. Oklahoma estates hold these constantly, and 58 O.S. § 1252(A) treats an interest in real estate as reaching surface, minerals, structures and fixtures. A mineral or royalty interest is a capital asset included in the gross estate, so it takes a date-of-death basis like any other. Get a written valuation from someone who values minerals for a living, and name that person on the inventory. Royalty checks that arrive after the death are income to whoever earned them, not part of the basis.
- Listed stocks and bonds. The IRS instructions for Form 706 state the rule: fair market value is the mean between the highest and lowest selling prices quoted on the valuation date. Where only closing prices exist, use the mean of the closing price on the valuation date and on the trading day before it. Ask the broker for a date-of-death valuation statement, which most firms produce on request.
- A business interest. A written valuation from a qualified appraiser. Partnership and limited liability company interests can also raise a Section 754 election question inside the entity.
- Higher-value personal property. Appraisals for art, jewelry, firearms, vehicles and collections. Photograph them where the person who died left them.
The alternate valuation date rarely applies
Internal Revenue Code Section 2032 lets the executor elect to value the gross estate six months after death, or at the date of disposition for anything sold inside that window. Section 2032(c) allows the election only where it decreases both the value of the gross estate and the sum of the estate and generation-skipping taxes, which means a federal estate tax return has to be in play. Almost every Oklahoma estate sits far under the $15,000,000 exclusion and never files one, so the date-of-death figure is the basis.
Add what you spend afterward
Capital improvements you make after you inherit raise your basis: an addition, a roof, a furnace, a well, land work, a new fence line. Ordinary repairs do not. Keep the invoices with the inventory copy, because the two documents together support the number on the return.
What Steps Up And What Does Not
Section 1014(b) reaches property acquired by bequest, devise or inheritance, property in a revocable trust the decedent could change or revoke, property passing under a general power of appointment exercised by will, and, under Section 1014(b)(9), property acquired by reason of death or form of ownership that has to be included in the decedent's gross estate. Between them, these Oklahoma routes all produce a date-of-death basis:
- Property distributed out of Oklahoma probate, whether the estate was testate or intestate
- Assets titled to a funded revocable living trust, which Oklahoma trust administration covers
- Real estate and minerals passing under a recorded transfer-on-death deed, because 58 O.S. § 1257 keeps the record owner the legal and equitable owner until death and treats that owner as absolute as regards creditors and purchasers
- The decedent's share of a joint tenancy that the deed expressly created under 60 O.S. § 74
- Payable-on-death bank accounts and securities registered in beneficiary form
- Personal property collected on the 58 O.S. § 393 affidavit, ten or more days after the death, since that route changes the paperwork rather than the tax treatment
One Oklahoma deadline can undo the simplest of those routes. Under 58 O.S. § 1252(E), for a record owner's death on or after November 1, 2011, the transfer-on-death beneficiary has to record the acceptance affidavit, with a copy of the death certificate attached, in the county where the land sits within nine months of the death, or the interest reverts to the deceased grantor's estate. Missing it does not cost the step-up, because the property was in the gross estate either way. It costs the shortcut, because the house then needs the probate the deed was meant to avoid. The other routes around administration are compared in how to avoid probate in Oklahoma.
Three categories do not step up:
- Income in respect of a decedent. Traditional IRAs, 401(k) plans and other tax-deferred accounts carry no reset, and the beneficiary pays ordinary income tax on withdrawals. Section 1014(c) says so directly.
- Lifetime gifts. Property handed over before death carries the donor's basis, which is why giving away appreciated property during life is usually the expensive choice.
- Property you gave the decedent within a year of death. Section 1014(e) sends appreciated property back to the donor or the donor's spouse at the decedent's adjusted basis where the gift was made inside the one-year window ending at death.
What Oklahoma Charges When You Sell
One set of brackets, no separate capital gains rate
Oklahoma runs no capital gains rate of its own. A gain rides into Oklahoma taxable income and is taxed at the individual rates in 68 O.S. § 2355, "Tax imposed - Classes of taxpayers," last amended by Laws 2025, c. 307, § 2, effective November 1, 2025.
| Tax year | Top marginal individual rate | Where it sits |
|---|---|---|
| 2024 and 2025 | 4.75% | § 2355(C)(1)(f) and (C)(2)(f) |
| 2026 and later | 4.5% | § 2355(D)(1)(d) and (D)(2)(d) |
Use the rate for the year of the sale, not the year of the death. An heir who inherited in 2025 and sells in 2026 is in the 4.5% band. Subsection D also opens the brackets with a zero-rate band, 0% on the first $3,750 of Oklahoma taxable income for a single filer and the first $7,500 on a joint return, and subsection E can cut every rate by another 0.25 of a point after a State Board of Equalization certification, so check the operative figure for your filing year before you plan around it.
The Oklahoma capital gain deduction, and the clock that restarts
Oklahoma does publish a capital gain deduction, and heirs hear the name and stop reading. 68 O.S. § 2358(F) lets an individual deduct qualifying gains receiving capital treatment from Oklahoma adjusted gross income where the gain comes from the sale of real or tangible personal property located in Oklahoma "that has been directly or indirectly owned by the individual taxpayer for a holding period of at least five (5) years" before the sale. Stock or an ownership interest in an Oklahoma company runs on a two-year clock. Subsection D gives an estate or trust the same deduction on a five-year clock for Oklahoma realty.
The statute's holding-period definition says the period "shall include any additional period when the property was held by another individual or entity, if such additional period is included in the taxpayer's holding period for the asset pursuant to the Internal Revenue Code." That sends you to federal law, and federal law does not hand an heir the decedent's years. The Tax Commission says the same thing in plainer words. The instructions to Form 561, Oklahoma Capital Gain Deduction tell you to complete Column B with the date the property was acquired, and add: "If you entered 'VARIOUS' or 'INHERITED' from your federal form, enter the date you actually acquired the property."
So an heir selling an inherited Oklahoma house measures five years from the inheritance, not from the day the person who died bought it. A family that sells in the year after a death is generally outside the deduction. A family that keeps a farm or a mineral interest for six years is generally inside it. Take the acquisition dates and the federal forms to a CPA before claiming it, because the deduction turns on dates rather than on how the property was used.
Documentary stamp tax reaches the sale, not the inheritance
68 O.S. § 3201 taxes each deed by which "realty sold" is conveyed, at 75 cents for each $500 of consideration or a fractional part of it, once the consideration exceeds $100 and excluding any lien remaining on the property at the time of sale. Subsection B settles the question an heir asks: "The tax is limited to conveyances of realty sold and does not apply to other conveyances."
A personal representative's deed distributing a house to the heirs for no consideration conveys realty that was not sold, so the stamp tax does not attach. The later sale to a buyer does, and 68 O.S. § 3203 requires the stamps on the deed before the county clerk will accept it for recording. Section 3202 also exempts deeds between spouses, between parent and child, and between persons related within the second degree of consanguinity where there is no actual consideration. Who signs that deed, what a title company will want and when an estate can convey at all are covered in selling inherited property in Oklahoma.
If the estate sells before distributing
68 O.S. § 2368(G) requires every resident estate and trust to make an Oklahoma return for each taxable year stating taxable income and the adjustments needed to reach Oklahoma taxable income, and every nonresident estate or trust with Oklahoma taxable income to do the same. The return has to carry a schedule showing the distribution to beneficiaries of the income items reported on the federal return, and the fiduciary signs it. The Tax Commission prescribes the form, which it publishes as form 513 for a resident fiduciary in its forms library.
Where the gain is passed out to beneficiaries, the beneficiaries report it. Where the estate keeps it, the estate does. That choice can also change the federal answer below, so make it deliberately rather than by default. Timing it against the rest of the administration is easier with the Oklahoma probate timeline in front of you, and creditor payments come first under the order in Oklahoma creditor claims.
The federal side of the same gain
- Your holding period is long-term automatically. Internal Revenue Code Section 1223(9) treats property acquired from a decedent as held for more than one year where it is sold within a year of the death, so the lower long-term rates apply even on a quick sale. Note what it does not do: it supplies long-term character, not the decedent's actual years, which is why the Oklahoma five-year clock above starts fresh.
- The net investment income tax. Section 1411 adds 3.8% on the lesser of net investment income or the excess of modified adjusted gross income over a threshold: $250,000 on a joint return or for a surviving spouse, half that for a married person filing separately, and $200,000 in any other case. Those figures sit in the statute and carry no inflation indexing. An estate or trust reaches the tax far earlier, because its threshold is the dollar amount where the highest trust bracket starts. That alone can argue for distributing an asset before selling it.
- A surviving spouse selling the family home. Section 121(b)(4) lets an unmarried surviving spouse use the $500,000 exclusion rather than $250,000 where the sale happens no later than two years after the spouse's death and the ownership and use tests were met immediately before that death. Stacked on a half step-up, that combination often erases the gain. The two-year clock is the part people miss.
Records To Keep
Hold these together in one place, indefinitely rather than for a few years:
- The § 281 inventory and appraisement filed with the district court, plus any appraiser's report ordered under § 281(C)
- Date-of-death appraisals for real estate and minerals, and the broker's date-of-death valuation statement for securities
- The recorded deed, because the granting clause decides whether 60 O.S. § 74 created a joint tenancy at all
- Closing documents from the original purchase where the property was jointly held, since Section 2040(a) turns on who furnished the money
- The recorded § 1252 beneficiary affidavit, or the § 912 termination affidavit, whichever cleared the title
- Invoices for every capital improvement made after you inherited
- The settlement statement, commission receipts, and legal and accounting fees from the eventual sale
Frequently Asked Questions
Does Oklahoma tax me when I inherit property?
No. Oklahoma charges no inheritance tax and no estate tax. The Oklahoma Estate Tax Act at 68 O.S. §§ 801 through 826 prints in the current compilation under the line "Repealed by Laws 2006, 2nd Extraordinary Session, c. 42, § 6, eff. Jan. 1, 2010," and 68 O.S. § 804.1 says that for deaths on or after January 1, 2010 no lien related to estate tax attaches to any property passing through an estate, by joint tenancy or otherwise, and no order exempting estate tax liability is needed to release the property or make title marketable. What can reach you is Oklahoma income tax on the gain, and only if you sell the asset for more than its stepped-up basis.
Where does the date-of-death value get written down in an Oklahoma estate?
In the inventory, and it goes back to the court. 58 O.S. § 281(A) gives the personal representative two months from the date of the appointment order to make and return to the district court an inventory and appraisement designating the homestead and the exempt personal property. Read subsection B before you rely on the number: the personal representative may satisfy the appraisement by stating his own opinion of value. Subsection C is the lever, because the court must order an appraisement on the written demand of an heir, devisee, legatee, a creditor who has filed a claim, a guardian, or anyone else with an interest in the estate.
If my spouse and I own our Tulsa home together, does the whole house step up when one of us dies?
No. Oklahoma is a common-law property state. IRS Publication 551 names the nine community property states as Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington and Wisconsin, and Oklahoma is not among them. Where a married couple holds a home as the only two joint tenants with right of survivorship, Internal Revenue Code Section 2040(b) puts one half of the value in the deceased spouse's gross estate whoever paid for it, so one half steps up to date-of-death value and the survivor's half keeps its original cost. Pull the deed first, because 60 O.S. § 74 creates a joint tenancy only when the instrument expressly declares one.
Does the step-up still apply if the house passed by an Oklahoma transfer-on-death deed?
Yes. 58 O.S. § 1257 says a record owner who signs a transfer-on-death deed remains the legal and equitable owner until death and is treated as an absolute owner as regards creditors and purchasers during life. The owner keeps everything, so the property sits in the gross estate and takes a date-of-death basis under Internal Revenue Code Section 1014(b)(9). Watch the deadline that follows the death: under 58 O.S. § 1252(E), for a death on or after November 1, 2011 the beneficiary must record the acceptance affidavit and the death certificate with the county clerk within nine months, or the interest reverts to the estate.
Do inherited retirement accounts get a step-up in Oklahoma?
No, and no state rule changes that. A traditional IRA, a 401(k) and similar tax-deferred accounts are income in respect of a decedent. Internal Revenue Code Section 1014(c) says the basis rule does not apply to property that constitutes a right to receive an item of income in respect of a decedent, so the beneficiary pays ordinary income tax on withdrawals with no reset. The step-up reaches capital assets: a house, a mineral interest, a taxable brokerage account, a business interest.
Can I claim Oklahoma's capital gain deduction on an inherited house?
Usually not right away, because the clock restarts on you. 68 O.S. § 2358(F) lets an individual deduct qualifying gains from the sale of real property located in Oklahoma that the taxpayer has owned for at least five uninterrupted years before the sale. The Oklahoma Tax Commission's 2025 Form 561 instructions tell you what date to use: where the federal form says INHERITED, enter the date you actually acquired the property. So an heir who sells soon after the death is measuring a short holding period, and the deduction that a long-time owner would have claimed is out of reach. Take the acquisition dates to a CPA before you count on it.
Related Oklahoma Guides
- Oklahoma Estate Tax Calculator
- Selling Inherited Property in Oklahoma
- Oklahoma Surviving Spouse Rights
- Oklahoma Federal Estate Tax
- Oklahoma Probate Guide
- How to Avoid Probate in Oklahoma
- Oklahoma Trust Administration
- Oklahoma Intestate Succession
- Oklahoma Executor Duties
- Oklahoma Probate Timeline
Sources:
- Title: Okla. Stat. tit. 58, § 281, Inventory of estate. Publisher: Oklahoma Legislature. Publication Date: Compilation through the 2025 session, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os58.pdf
- Title: Okla. Stat. tit. 58, § 282, Appraisement, and § 283, Oath of appraisers - Their duties. Publisher: Oklahoma Legislature. Publication Date: Compilation through the 2025 session, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os58.pdf
- Title: Okla. Stat. tit. 58, § 911, Petition for determination - Hearing - Notice - Order and decree - Filing, and § 912, Termination of joint tenancy or life tenancy with remainder interest by affidavit. Publisher: Oklahoma Legislature. Publication Date: Compilation through the 2025 session, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os58.pdf
- Title: Okla. Stat. tit. 58, § 1252, Transfer-on-death deed - Notice to beneficiary - Acceptance of transfer-on-death deed, and § 1257, Record owner considered absolute owner. Publisher: Oklahoma Legislature. Publication Date: Compilation through the 2025 session, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os58.pdf
- Title: Okla. Stat. tit. 58, § 393, Payment or delivery of property to successor by affidavit. Publisher: Oklahoma Legislature. Publication Date: Compilation through the 2025 session, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os58.pdf
- Title: Okla. Stat. tit. 60, § 74, Joint tenancy and tenancy by entirety. Publisher: Oklahoma Legislature. Publication Date: Compilation through the 2025 session, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os60.pdf
- Title: Okla. Stat. tit. 68, § 804.1, Estate tax lien, and §§ 801 to 826 (repealed effective January 1, 2010). Publisher: Oklahoma Legislature. Publication Date: Compilation through the 2025 session, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os68.pdf
- Title: Okla. Stat. tit. 68, § 2355, Tax imposed - Classes of taxpayers. Publisher: Oklahoma Legislature. Publication Date: Amended by Laws 2025, c. 307, § 2, eff. Nov. 1, 2025, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os68.pdf
- Title: Okla. Stat. tit. 68, § 2358, Adjustments to arrive at Oklahoma taxable income and Oklahoma adjusted gross income. Publisher: Oklahoma Legislature. Publication Date: Compilation through the 2025 session, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os68.pdf
- Title: Okla. Stat. tit. 68, § 2368, Persons required to make returns - Income of estates and trusts - Income of partnerships. Publisher: Oklahoma Legislature. Publication Date: Compilation through the 2025 session, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os68.pdf
- Title: Okla. Stat. tit. 68, § 3201, Imposition of tax - Definitions, § 3202, Exemptions, and § 3203, Persons obligated to pay tax. Publisher: Oklahoma Legislature. Publication Date: Compilation through the 2025 session, accessed 2026-09-02. URL: https://www.oklegislature.gov/OK_Statutes/CompleteTitles/os68.pdf
- Title: 2025 Form 561, Oklahoma Capital Gain Deduction for Residents Filing Form 511. Publisher: Oklahoma Tax Commission. Publication Date: 2025 tax year, accessed 2026-09-02. URL: https://oklahoma.gov/content/dam/ok/en/tax/documents/forms/individuals/current/561.pdf
- Title: Forms. Publisher: Oklahoma Tax Commission. Publication Date: Not listed, accessed 2026-09-02. URL: https://oklahoma.gov/tax/forms.html
- Title: 26 U.S.C. 1014, Basis of property acquired from a decedent. Publisher: Office of the Law Revision Counsel, United States House of Representatives. Publication Date: Not listed, accessed 2026-09-02. URL: https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title26-section1014&num=0&edition=prelim
- Title: 26 U.S.C. 1223, Holding period of property. Publisher: Office of the Law Revision Counsel, United States House of Representatives. Publication Date: Not listed, accessed 2026-09-02. URL: https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title26-section1223&num=0&edition=prelim
- Title: 26 U.S.C. 2032, Alternate valuation. Publisher: Office of the Law Revision Counsel, United States House of Representatives. Publication Date: Not listed, accessed 2026-09-02. URL: https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title26-section2032&num=0&edition=prelim
- Title: 26 U.S.C. 2040, Joint interests. Publisher: Office of the Law Revision Counsel, United States House of Representatives. Publication Date: Not listed, accessed 2026-09-02. URL: https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title26-section2040&num=0&edition=prelim
- Title: 26 U.S.C. 2010, Unified credit against estate tax. Publisher: Office of the Law Revision Counsel, United States House of Representatives. Publication Date: Not listed, accessed 2026-09-02. URL: https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title26-section2010&num=0&edition=prelim
- Title: 26 U.S.C. 1411, Imposition of tax. Publisher: Office of the Law Revision Counsel, United States House of Representatives. Publication Date: Not listed, accessed 2026-09-02. URL: https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title26-section1411&num=0&edition=prelim
- Title: 26 U.S.C. 121, Exclusion of gain from sale of principal residence. Publisher: Office of the Law Revision Counsel, United States House of Representatives. Publication Date: Not listed, accessed 2026-09-02. URL: https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title26-section121&num=0&edition=prelim
- Title: Publication 551, Basis of Assets. Publisher: Internal Revenue Service. Publication Date: December 2025, accessed 2026-09-02. URL: https://www.irs.gov/publications/p551
- Title: Instructions for Form 706, United States Estate (and Generation-Skipping Transfer) Tax Return. Publisher: Internal Revenue Service. Publication Date: September 2025, accessed 2026-09-02. URL: https://www.irs.gov/instructions/i706
This guide explains how the step-up in basis works for Oklahoma inherited property. Tax outcomes turn on facts that vary by family, so take yours to a CPA or a tax attorney. It is not legal advice.



