Wisconsin judgment & prejudgment interest rates
Everything Wisconsin 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 | 7.75% | Set by statute |
| Prejudgment interest | 5% | Fixed by statute |
Post-judgment interest
Wisconsin's post-judgment interest rate is 7.75% per year. Wisconsin post-judgment interest is currently 7.75% — a statutory formula rate under Wis. Stat. § 815.05(8) that resets twice a year. § 815.05(8) governs POST-judgment interest (from date of entry until paid); prejudgment interest on the verdict/costs is under § 814.04(4), which…
→ Full Wisconsin post-judgment page — statute, effective-date history, and source.
Prejudgment interest
Wisconsin's prejudgment interest rate is 5% per year (fixed by statute). Wisconsin prejudgment interest is 5% per year, as simple interest under Wis. Stat. 138.04. Prejudgment interest is NOT available on all claims.
→ Full Wisconsin prejudgment page — when it applies, accrual, compounding, and carve-outs.
→ Calculate Wisconsin prejudgment interest
Frequently asked
What is the post-judgment interest rate in Wisconsin?
As of July 9, 2026, the Wisconsin post-judgment interest rate is 7.75% per year. Wisconsin judgment interest — a formula rate, reset twice a year.
What is the prejudgment interest rate in Wisconsin?
Wisconsin's prejudgment interest rate is 5% per year (fixed by statute). Prejudgment interest is NOT available on all claims.
Is Wisconsin 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 — Wisconsin 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.