Montana Judgment Interest Rate
United States Montana judgment interest — a formula rate, reset periodically.
Current rate
9.75% per year, effective January 1, 2026 Set by statute
Montana post-judgment interest is currently 9.75% — a statutory formula rate under Mont. Code Ann. § 25-9-205 that resets periodically. For a judgment involving a contractual obligation that specifies an interest rate, post-judgment interest is paid at the rate specified in the…
→ See Montana’s prejudgment interest rate (interest before judgment — different rules)
Statutory basis & carve-outs. Post-judgment interest under Mont. Code Ann. § 25-9-205, currently 9.75% (as of January 1, 2026). Rate = (bank prime loan rate published in the Federal Reserve System's H.15 "Selected Interest Rates" release, or any superseding publication, on the day judgment is entered)… Simple interest. For a judgment involving a contractual obligation that specifies an interest rate, post-judgment interest is paid at the rate specified in the… Verify the current value at mca.legmt.gov; not legal advice.
Effective-date history
| Effective date | Rate | Basis |
|---|---|---|
| January 1, 2026 | 9.75% | Statute |
Source & provenance
Latest value retrieved July 10, 2026 (02:55 UTC) from the official source:
https://mca.legmt.gov/bills/mca/title_0250/chapter_0090/part_0020/section_0050/0250-0090-0020-0050.html
Reference data only — not legal, tax, or financial advice. Always confirm the controlling value
against the official source and, where applicable, the governing statute or court before relying on it.