2026 Iowa judgment & prejudgment interest rates
Current 2026 snapshot: Iowa post-judgment interest is 6.06% per year; the recorded prejudgment reference is 6.06% per year.
Everything Iowa 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 | 6.06% | August 10, 2026 | Iowa Code §§535.3 and 668.13 | Derived formula |
| Prejudgment interest | 6.06% | August 10, 2026 | Iowa Code §§535.3, 625.21, and 668.13 | Formula rate |
Post-judgment interest
Iowa's post-judgment interest rate is 6.06% per year. Iowa Code §§535.3 and 668.13 set the general noncontract judgment rate at the one-year Treasury constant maturity selected from Federal Reserve H.15, plus 2 percentage points. State Court Administration publishes the applicable selection in a monthly table; it is not the federal court system’s weekly-average rate. The rate is selected as of judgment and interest is computed daily. A qualifying contract rate, workers’ compensation award, support obligation, or structured judgment can follow a different rule.
→ Full Iowa post-judgment page — Iowa Code §§535.3 and 668.13, effective-date history, scope, and official source.
Prejudgment interest
Iowa's prejudgment interest rate is 6.06% per year (formula rate). Iowa’s general prejudgment rate uses the same Iowa Code §668.13 selection as post-judgment interest: the State Court Administrator’s monthly one-year Treasury CMT value plus 2 percentage points, selected as of the judgment. The published table changes monthly, but an individual judgment does not reset every month. Entitlement and the accrual start still depend on the claim and governing statute.
→ Full Iowa prejudgment page — Iowa Code §§535.3, 625.21, and 668.13, when it applies, accrual, compounding, and carve-outs.
Frequently asked
What is the post-judgment interest rate in Iowa?
As of August 10, 2026, the Iowa post-judgment interest rate is 6.06% per year. Iowa’s monthly published Treasury-linked judgment rate.
What is the prejudgment interest rate in Iowa?
Iowa's prejudgment interest rate is 6.06% per year (formula rate). The general §668.13 path can include interest before judgment, but future damages, contract-rate cases, non-chapter-668 verdict interest, support obligations, and workers’ compensation use important separate rules.
Is Iowa judgment interest simple or compound, and when does it start?
Section 668.13(5) requires interest to be computed daily to payment, and Iowa authority treats the ordinary path as simple interest. The statute does not itself state the annual day-count denominator or every partial-payment rule, so the calculator remains withheld. Section 668.13 generally allows interest from commencement of the action, with future damages beginning only when judgment is entered. After entry, the rate selected as of the judgment continues while the amount remains unpaid. Section 625.21 also supplies a verdict-to-final-entry rule outside chapter 668.
Cite this page
StatuteRates. “Iowa Judgment & Prejudgment Interest Rates.” StatuteRates.com. Accessed today. https://statuterates.com/states/iowa/ 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.