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How much does probate cost in Oklahoma?

Opening a probate or guardianship case in an Oklahoma district court costs a $135 flat fee under 28 O.S. §152(A)(3), plus the statute's mandatory assessments of $6, $25, $10, $2 and $10 — $188 collected in total when the case is filed. Unlike states that charge a percentage of the estate or scale the fee to the inventory, Oklahoma charges the same flat fee for a small estate and a large one; the value of what the deceased owned does not appear anywhere in the §152 probate line. The same paragraph of the statute prices the follow-on filings an estate is likely to meet, and this page lists them all.

Oklahoma probate fees at a glance

Each assessment stacked on the $135 has a named destination in the statute: $6 to the county Law Library Fund under subsection B, which expressly lists paragraph 3 cases; $25 to the Oklahoma Court Information System Revolving Fund under C; $10 to the court-appointed special advocates programme under D; $2 split between the Council on Judicial Complaints and the Supreme Court's interpreter fund under E; and $10 to the Court Clerk's Records Management and Preservation Fund under G, an assessment the statute keeps in place until November 1, 2027. A county may add up to $10 more for courthouse security under subsection F with its commissioners' approval — that charge is optional and local, so it is not counted in the $188. Section 152 also promises that the flat fees are the only charge for court costs except as specifically provided, which is why an Oklahoma estate does not meet a second, value-based clerk's bill when the inventory is filed. The national comparison is on the probate court costs hub and the state picture is on the Oklahoma court costs guide.

What kind of case pays the $135

Probate in Oklahoma is the district court's process for proving a will, appointing a personal representative, and supervising the payment of debts and distribution of the estate; guardianship of an incapacitated adult or a minor shares the same A(3) line and the same $135 flat fee. The petition is filed in the county where the deceased resided, or where a guardianship subject lives. Because the fee is flat, the real cost divisions in an Oklahoma estate are procedural, not monetary: an uncontested estate may pay only the opening $188 at the clerk, while an estate that must sell land pays the additional $43 sale proceeding fee, an estate whose will is attacked pays the $43 revocation-proceeding fee from the challenger's side, and a guardianship that runs for years pays the $33 annual report fee each year it reports.

Small estates and the affidavit route

Not every Oklahoma estate needs the full probate filing. Oklahoma law provides summary and small-estate procedures for estates below statutory value limits, and property can also pass outside probate entirely where assets carry beneficiary designations or joint ownership. Those routes have their own eligibility rules, and a filer should confirm with the clerk or an attorney which procedure an estate qualifies for before paying for the wrong door: the $135 flat fee buys the full probate or guardianship case, and §152 makes its flat fees non-refundable (none of which shall ever be refundable), so choosing the correct procedure first is worth more than the fee itself. Where a judicial determination of death is the only thing needed — for example for a missing person or a simultaneous-death question — the statute prices that standalone proceeding separately at $58 under A(7), with the $6 law library assessment applying to it as a listed paragraph.

How probate runs

1. Locate the will, if any, and confirm the county of the deceased's residence for filing
2. Complete the petition for probate (or for guardianship), with the death certificate and the will where one exists
3. File with the district court clerk and pay the flat fee and assessments $188 total
4. Give the statutory notice to heirs, devisees and creditors, and attend the hearing at which the personal representative is appointed and letters are issued
5. Inventory and administer the estate, paying the $43 sale-proceeding fee only if estate property must be sold through a court proceeding, and close with the final account and decree of distribution

What probate really costs beyond the clerk

The clerk's $188 is the smallest predictable part of an Oklahoma estate. Notice to creditors is published in a newspaper, which charges its own rate. A bond for the personal representative, where required and not waived by the will, is priced by the surety. Appraisals, accounting and attorney fees are professional charges paid from the estate, and Oklahoma, like most states, allows the personal representative and attorney reasonable compensation rather than a fee fixed in §152 — so this page does not invent a percentage. What the statute does fix, it fixes completely: the opening fee, the report and proceeding fees in the table, and the promise that no other court costs will be charged except as the statute specifically provides. Compare percentage-based systems in North Carolina probate costs and California probate costs, and flat-fee neighbours in Texas probate costs.

Can't afford the fee?

Probate fees are normally paid from the estate rather than the petitioner's pocket, but where a litigant genuinely cannot pay, 28 O.S. §152(H) allows an affidavit in forma pauperis: on a satisfactory showing of poverty and inability to employ counsel, no fees or costs are required, the clerk must allow the case to proceed while eligibility is decided, and a false affidavit is perjury. Guardianship petitioners should ask the clerk how the court handles the fee where the proposed ward's estate is the intended source of payment. The general mechanics are explained in the fee waiver guide.

Sources: Oklahoma Statutes tit. 28, §152 (2025), read directly at build time — flat fee in subsection A plus the mandatory assessments in subsections B ($6 Law Library, on listed paragraphs), C ($25 Oklahoma Court Information System), D ($10 OCASA), E ($2) and G ($10 Court Clerk's Records Management and Preservation Fund, until Nov. 1, 2027); subsection F allows a county to add up to $10 for courthouse security, not counted in the totals on this page. Last verified: October 2026 — confirm current figures with the district court clerk.