Oklahoma probate is administered by the District Court in the county where the deceased was domiciled at death. Oklahoma has 77 counties — each with a District Court handling probate on a general civil docket. Oklahoma is NOT a Uniform Probate Code (UPC) state; all probate is governed by Oklahoma Statutes Title 58 (Probate Procedure). Most Oklahoma estates require at least two court hearings: one to open the estate and one for final settlement. Oklahoma's 2-month creditor period is the defining feature — publish Notice to Creditors immediately after appointment to start that clock and close the estate as quickly as possible.
Oklahoma Probate Deadline Table
| Deadline | Trigger / Timing | Statutory Reference |
|---|---|---|
| File Application to Probate Will or Application for Letters | As soon as practical after death — no fixed outside deadline like Texas's 4-year rule, but prompt filing is advisable | 58 O.S. § 21 et seq. |
| Opening hearing before District Court judge | Scheduled by court after filing; typically 2–4 weeks after application; will admitted and Personal Representative appointed | 58 O.S. § 62 |
| Receive Letters Testamentary or Letters of Administration | Issued at opening hearing upon appointment and oath — appointment date triggers all running deadlines | 58 O.S. § 162 |
| Publish Notice to Creditors | Promptly after appointment — publish in county newspaper; starts 2-month creditor period | 58 O.S. § 331 |
| Mail notice to known creditors | Promptly after appointment — direct written notice to all known creditors | 58 O.S. § 333 |
| File Inventory with District Court | Within 2 months of appointment (60 days from appointment date) | 58 O.S. § 282 |
| Creditor claim deadline | 2 months from date of first publication of Notice to Creditors — one of the shortest in the country | 58 O.S. § 333 |
| File deceased's final Oklahoma Form 511 | April 15 of the year following death (or extension to October 15) | Oklahoma Tax Commission |
| File Oklahoma Form 513 (Fiduciary Income Tax, if applicable) | April 15 following close of the estate's tax year; file if estate earns income during administration | Oklahoma Tax Commission |
| File deceased's final federal Form 1040 | April 15 of the year following death (or extension) | IRS |
| File federal Form 1041 (estate income, if applicable) | April 15 (calendar year estates); file if estate earns income over $600 | IRS |
| File Final Account with District Court | After all debts paid, taxes filed, and assets distributed | 58 O.S. § 541 |
| Closing hearing before District Court judge | Scheduled after Final Account filed; receive Order of Final Distribution and discharge | 58 O.S. § 561 |
Phase-by-Phase Summary
Phase 1 — Opening (Weeks 1–4): Gather the original will — the District Court requires the original. Order 6–8 certified death certificates from Oklahoma Vital Records (oklahoma.gov/health). File Application to Probate Will or Application for Letters of Administration with the District Court in the county of domicile. Pay the filing fee ($50–$150). Attend the opening hearing (typically 2–4 weeks after filing). Receive Letters Testamentary or Letters of Administration — request 6–8 certified copies. File Oath of Personal Representative. Post bond if required (the will may waive bond).
Phase 2 — Notice, EIN, and Bank Account (Weeks 1–3 after appointment): Apply for the estate's EIN at irs.gov immediately after appointment (select "Estate" entity type — immediate online delivery, no cost). Open a dedicated estate checking account using the Letters and EIN. Publish Notice to Creditors in a newspaper of general circulation in the county — this starts the 2-month creditor period (58 O.S. § 333). Mail direct written notice to all known creditors. Track the first publication date — it controls your closing timeline.
Phase 3 — Inventory (Weeks 2–8 after appointment): Prepare a complete Inventory of all probate assets with their fair market values as of the date of death. Obtain professional appraisals for real estate and high-value personal property items. File the Inventory with the District Court within 2 months of appointment (58 O.S. § 282). The inventory deadline runs concurrently with the early part of the creditor period — begin asset identification immediately upon appointment. Send a copy to all interested persons.
Phase 4 — Claims and Taxes (Months 2–4): Wait for the 2-month creditor period to expire from the first publication date. Review all creditor claims — pay valid claims in priority order from the estate account; reject invalid or time-barred claims in writing. Oklahoma has no estate tax and no inheritance tax (both repealed 2010). File the deceased's final Oklahoma Form 511 (income tax) by April 15. File Oklahoma Form 513 (Fiduciary Income Tax) if the estate earns income. File federal Form 1040 and Form 1041 if applicable.
Phase 5 — Distribution (Month 3+): Distribute assets to heirs per the will or Oklahoma intestacy law (84 O.S. § 213). Obtain signed distribution receipts from all heirs and legatees. Transfer real estate by recording a deed with the county clerk. Transfer vehicle titles at the Oklahoma Tax Commission. Close or transfer financial accounts using Letters Testamentary. Search Oklahoma unclaimed property (ok.gov/treasurer) before closing — the deceased may have unclaimed assets.
Phase 6 — Closing (Month 4+): File a Final Account with the District Court showing all receipts, disbursements, and distributions. Attend the closing hearing before the District Court judge. Receive the Order of Final Distribution and discharge from the court. Close the estate bank account after final distribution. Retain all estate records for at least 3 years after closing.
- No Oklahoma estate tax — repealed in 2010; no state estate tax return required regardless of estate size
- No Oklahoma inheritance tax — repealed in 2010; no inheritance tax on any beneficiary class
- Oklahoma Form 511 — deceased's final Oklahoma income tax return; graduated up to 4.75%; due April 15
- Oklahoma Form 513 — Fiduciary Income Tax Return; file if estate earns income during administration; due April 15
- Federal Form 1040 — deceased's final federal return; due April 15
- Federal Form 1041 — required if estate earns gross income over $600; due April 15
- Federal Form 706 — only if gross estate exceeds $13.61 million (2024); due 9 months from death
Typical Oklahoma Probate Timeline
Minimum: ~4–5 months (2-month creditor period from first publication, plus time for the opening hearing, inventory, tax filing, and closing hearing). Oklahoma's short creditor period makes it one of the fastest-closing non-UPC states.
Typical: 5–8 months for a standard Oklahoma estate with real estate and bank accounts.
Extended: 8–14+ months for estates involving:
- Real estate that must be appraised and sold (listing, marketing, closing)
- Business interests requiring professional valuation
- Disputes among beneficiaries or contested creditor claims
- Multiple properties across different Oklahoma counties
- Complex federal estate tax (Form 706) preparation for large estates
- IRS examination of the final Form 1040 or Form 1041
Oklahoma vs. Neighboring States — Creditor Periods
| State | Creditor Period | Triggered By | State Estate Tax? |
|---|---|---|---|
| Oklahoma | 2 months from first publication | First publication of Notice to Creditors | No |
| Arkansas | 3 months from first publication | First publication of Notice to Creditors | No |
| Texas | 4 months from first publication | First publication of Notice to Creditors | No |
| Kansas | 4 months from first publication | First publication of Notice to Creditors | No |
| Colorado | 1 year from death (UPC) | Date of death | No |
| Missouri | 6 months from first publication | First publication of Notice to Creditors | No |