2026 Missouri judgment & prejudgment interest rates
Current 2026 snapshot: Missouri post-judgment interest is 9% / 8.75% per year; the recorded prejudgment reference is 9% non-tort; tort rule varies per year.
Everything Missouri charges in interest on a money judgment or an overdue debt, in one place — the rate after judgment and the rate before it, each recorded with a cited source and linked to its full page with observations, scope, and known carve-outs.
| Metric | Rate or rule | Effective | Authority | Basis |
|---|---|---|---|---|
| Post-judgment interest | 9% / 8.75% | July 9, 2026 | Mo. Rev. Stat. §408.040 | Statutory formula / table |
| Prejudgment interest | 9% non-tort; tort rule varies | July 9, 2026 | Mo. Rev. Stat. §§ 408.020, 408.040.3–.4 | Formula rate |
Post-judgment interest
Missouri's post-judgment interest rate is 9% / 8.75% per year. Missouri post-judgment interest is currently 9% — a statutory formula rate under Mo. Rev. Stat. §408.040 that resets periodically. NON-TORT (contract and all other non-tort money judgments) = 9% flat, or the contract rate if the contract bears more than 9%.
→ Full Missouri post-judgment page — Mo. Rev. Stat. §408.040, effective-date history, scope, and official source.
Prejudgment interest
Missouri's prejudgment interest rate is 9% non-tort; tort rule varies per year (formula rate). Missouri prejudgment interest is claim-specific. Liquidated or contract claims may use the 9% rule in §408.020. For qualifying tort claims, §408.040.3 awards prejudgment interest within the subsection that sets the tort judgment rate at the intended Federal Funds Rate plus 5 points; §408.040.4 separately sets a Federal Funds plus 3-point rate on the prejudgment-interest portion after it becomes part of the judgment.
→ Full Missouri prejudgment page — Mo. Rev. Stat. §§ 408.020, 408.040.3–.4, when it applies, accrual, compounding, and carve-outs.
Frequently asked
What is the post-judgment interest rate in Missouri?
As of July 9, 2026, the Missouri post-judgment interest rate is 9% / 8.75% per year. Missouri judgment interest — a formula rate, reset periodically.
What is the prejudgment interest rate in Missouri?
Missouri's prejudgment interest rate is 9% non-tort; tort rule varies per year (formula rate). Prejudgment interest is NOT freely available; it is claim-type restricted.
Is Missouri 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 — Missouri prejudgment interest in particular turns on the type of claim.
Cite this page
StatuteRates. “Missouri Judgment & Prejudgment Interest Rates.” StatuteRates.com. Accessed today. https://statuterates.com/states/missouri/ Each rate includes a cited source and recorded effective date; confirm the controlling authority before use.
Compare every state on the state interest-rate index and the prejudgment interest index, or enter a confirmed rate in the judgment interest and per-diem calculator. Reference data only — not legal advice.