Kansas Prejudgment Interest Rate
United States Kansas’s prejudgment interest rate — when a court awards it.
Set by statute Fixed by statute
Kansas prejudgment interest is 10% per year, as simple interest under K.S.A. 16-201. Prejudgment interest is available only on LIQUIDATED claims — where both the amount due and the date it became due are fixed and certain, or definitely ascertainable by mathematical…
When Kansas prejudgment interest applies
Prejudgment interest is available only on LIQUIDATED claims — where both the amount due and the date it became due are fixed and certain, or definitely ascertainable by mathematical computation. It is generally BARRED on unliquidated claims (amount not fixed/ascertainable). A good-faith dispute over liability does not by itself defeat prejudgment interest once the claim is liquidated.
When it starts accruing
Accrues from the date the claim became due / the amount became liquidated (the day the account is liquidated and the balance ascertained; for periodic obligations, from each date the respective amount became due), running until the date of judgment.
Simple or compound
Simple.
→ Compare with the Kansas post-judgment interest rate (interest after judgment)
Prejudgment interest under K.S.A. 16-201 — 10% (simple interest). This is PREjudgment interest (accruing before entry of judgment) and is separate from Kansas’s post-judgment rate; availability is limited by claim type (see the page). Verify against the statute text. Not legal advice.
Effective-date history
| Effective date | Rate | Basis |
|---|---|---|
| July 9, 2026 | 10% | Statute |
Source & provenance
Latest value retrieved July 10, 2026 (02:55 UTC) from the official source:
https://ksrevisor.gov/statutes/chapters/ch16/016_002_0001.html