Oklahoma judgment & prejudgment interest rates
Everything Oklahoma charges in interest on a money judgment or an overdue debt, in one place — the rate after judgment and the rate before it, each verified against the statute and linked to its full page with sources, history, and carve-outs.
| Metric | Rate | Basis |
|---|---|---|
| Post-judgment interest | 8.75% | Set by statute |
| Prejudgment interest | 4.13% | Formula rate |
Post-judgment interest
Oklahoma's post-judgment interest rate is 8.75% per year. Oklahoma post-judgment interest is currently 8.75% — a statutory formula rate under 12 O.S. Sec. 727.1 that resets each year. Different formulas. Postjudgment = WSJ prime + 2% (8.75% for 2026). Prejudgment = average U.S. Treasury Bill rate of the preceding calendar year,…
→ Full Oklahoma post-judgment page — statute, effective-date history, and source.
Prejudgment interest
Oklahoma's prejudgment interest rate is 4.13% per year (formula rate). Oklahoma prejudgment interest is currently 4.13% per year — a statutory formula rate under 12 O.S. Sec. 727.1 that resets each year. Sharply restricted and split across two statutes.
→ Full Oklahoma prejudgment page — when it applies, accrual, compounding, and carve-outs.
Frequently asked
What is the post-judgment interest rate in Oklahoma?
As of January 1, 2026, the Oklahoma post-judgment interest rate is 8.75% per year. Oklahoma judgment interest — a formula rate, reset each year.
What is the prejudgment interest rate in Oklahoma?
Oklahoma's prejudgment interest rate is 4.13% per year (formula rate). Sharply restricted and split across two statutes.
Is Oklahoma judgment interest simple or compound, and when does it start?
See each rate's page for the exact compounding rule, accrual date, and statutory carve-outs — Oklahoma prejudgment interest in particular turns on the type of claim.
Compare every state on the state interest-rate index and the prejudgment interest index, or run the numbers with our interest calculators. Reference data only — not legal advice.