§ StatuteRates

Massachusetts post-judgment interest rate

United States  Interest on Massachusetts tort and contract judgments.

→ All Massachusetts judgment & prejudgment interest rates

Current rate
12% per year — current statutory reference (source checked July 8, 2026)
Fixed by statute

2026 Massachusetts post-judgment interest at a glance

Current rate
12% per year
Effective date
July 8, 2026
Controlling authority
M.G.L. c. 235 §8
Rate basis
Fixed by statute
Source checked
July 8, 2026
Recorded history
1 data point

Massachusetts adds interest at 12% per year to damages in tort actions (M.G.L. c.231 §6B, from commencement of the action) and contract actions (§6C, from breach or demand) — among the highest statutory rates in the U.S. In contract cases an established contract rate displaces the 12% default, and judgments against the commonwealth instead bear interest at a Treasury-linked rate capped at 10%.

→ Calculate interest at this rate

→ See Massachusetts’s prejudgment interest rate (interest before judgment — different rules)

Statutory basis & carve-outs. 12% per annum under both M.G.L. c.231 §6B (tort; from commencement of the action) and §6C (contract; from breach/demand, or commencement if not established). Applied as simple interest in MA practice. Carve-outs: an established contract rate displaces the §6C default; judgments against the commonwealth bear interest per §6I (weekly-average 1-yr Treasury CMT, capped at 10%). The official statute pages show no amendment history; the 12% figure has been stable since the early 1980s. Date shown is when the current text was verified (2026-07-08). Verify against the statute; not legal advice.

Current recorded observation

One current observation is on record; this page does not claim complete historical coverage. All recorded observations are in the JSON API.
Effective dateRateBasis
July 8, 2026 12% Statute

Source & provenance

Observation recorded July 8, 2026 (00:00 UTC) from the cited source (Massachusetts Legislature (official)):
https://malegislature.gov/Laws/GeneralLaws/PartIII/TitleII/Chapter231/Section6B

Cite this page

StatuteRates. “Massachusetts Judgment Interest Rate.” StatuteRates.com. Accessed today. https://statuterates.com/rates/massachusetts-judgment-rate/ Rate recorded under M.G.L. c. 235 §8, effective July 8, 2026.

Reference data only — not legal, tax, or financial advice. Always confirm the controlling value against the controlling official source and, where applicable, the governing statute or court before relying on it.