Rhode Island: Prejudgment Interest Rules
The short answer
Yes. R.I. Gen. Laws § 9-21-10 requires the clerk to add prejudgment interest at 12% per year to a civil verdict or decision for pecuniary damages, ordinarily running from the date the cause of action accrued. For covered medical-malpractice actions filed on or after January 1, 1987, interest instead runs from written notice to the insurer or provider or from filing, whichever occurs first. A contractual obligation that already provides interest is excluded.
Ask Ezel about your situation
This is the general rule in Rhode Island. Ask about your specific facts and see which parts of current Rhode Island law apply, with citations to the statutes.
| Governing law | R.I. Gen. Laws § 9-21-10 governs prejudgment interest in civil actions; § 9-21-8 separately states the postjudgment rate |
|---|---|
| Interest rate | 12% per year under § 9-21-10(a) and (b). The statute does not apply to a contractual obligation where interest is already provided |
| When interest starts running | Ordinary civil action: date the cause of action accrued (§ 9-21-10(a)). Covered medical-malpractice action filed on or after January 1, 1987: written notice to the insurer/provider or filing, whichever occurs first (§ 9-21-10(b)) |
| Contract vs. tort claims | The same § 9-21-10(a) text covers any civil action for pecuniary damages, without a general contract/tort split; covered medical malpractice has a different trigger, and a contract already providing interest is excluded |
| Mandatory or discretionary | Mandatory once the statute applies: the text says interest 'shall be added by the clerk of the court' and included in the judgment (§ 9-21-10) |
| Simple or compound | Section 9-21-10 states no prejudgment compounding mechanism: it applies 12% per year to the damages. It separately says postjudgment interest accrues on both judgment principal and the prejudgment interest entered |
| Claims against the government | Section 9-31-2 caps tort damages against the State or a political subdivision at $100,000 but removes that cap for a proprietary function. Section 9-21-10 states no government-specific interest rule; any sovereign-immunity limit on interest depends on law outside the statutory text quoted here |
| Other exceptions | Only pecuniary-damages verdicts or decisions qualify; § 9-21-10 excludes contractual obligations where interest is already provided and substitutes the special notice/filing trigger for covered medical-malpractice actions |
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Requirements one by one
Governing law
R.I. Gen. Laws § 9-21-10 is the operative prejudgment-interest statute. Its ordinary rule applies when a civil verdict or decision awards pecuniary damages. Section 9-21-8 separately states the 12% rate borne by a money judgment after entry; § 9-21-10(a) also describes how that postjudgment interest treats prejudgment interest already included in the judgment.
Interest rate
The current statutory rate is 12% per year. Section 9-21-10(a) applies that rate to an ordinary qualifying civil action, and subsection (b) keeps the same rate for the covered medical-malpractice actions subject to its special timing rule. An obligation under a contract that already provides interest is outside § 9-21-10(a).
When interest starts running
For the ordinary rule, § 9-21-10(a) runs interest "from the date the cause of action accrued." For a covered professional-negligence personal-injury or wrongful-death action filed on or after January 1, 1987, subsection (b) instead uses the earlier of written notice to the malpractice insurer or health-care provider and the filing of the civil action.
Contract vs. tort claims
The ordinary subsection does not create separate contract and tort rates. It applies to "any civil action" producing pecuniary damages. Claim type matters for the medical-malpractice trigger, and contract terms matter because a contractual obligation that already provides interest is expressly excluded.
Mandatory or discretionary
The statute uses mandatory language. In both the ordinary and medical-malpractice provisions, qualifying interest "shall be added by the clerk of the court" to the damages and included in the judgment. The text does not give the judge a general option to select a lower rate or deny interest after its conditions are met.
Simple or compound
For the prejudgment period, § 9-21-10 applies the annual rate to the amount of damages and states no compounding interval or interest-on-interest calculation. The same section expressly treats the postjudgment period differently: after entry, interest accrues on both the judgment principal and the prejudgment interest included in it.
Claims against the government
R.I. Gen. Laws § 9-31-2 caps tort damages against the State or a political subdivision at $100,000, while removing the cap when the State was engaged in a proprietary function or agreed to indemnify the federal government. The current text of § 9-21-10 contains no government-specific prejudgment-interest paragraph. Whether sovereign-immunity doctrine separately limits interest requires case-specific authority beyond those statutory sentences.
Other exceptions
The judgment must award pecuniary damages. The statute excludes a contractual obligation where interest is already provided, does not apply before entry of judgment, and replaces the ordinary accrual rule for the listed medical and dental professional-negligence defendants.
What trips people up
The current 12% rule is not necessarily permanent. Rhode Island H 7033 would replace it for ordinary cases with a 52-week Treasury-bill auction yield and would move the ordinary start date from accrual to filing. As of August 16, 2026, the bill has not advanced beyond the House Judiciary Committee's January 29 recommendation that it be held for further study, so the enacted statute still controls.
The medical-malpractice subsection changes the start date, not the rate. It also applies only to the defendants and professional-negligence actions named in § 9-21-10(b); it is not a general rule for every health-related dispute.
Common questions
Does the 12% start before judgment is entered? The calculation reaches back to the statutory start date, but § 9-21-10 says the section does not apply until entry of judgment. The clerk then includes the calculated prejudgment amount in the judgment.
What if my contract already states an interest rate? Section 9-21-10(a) says it does not apply to a contractual obligation where interest is already provided. The agreement and other applicable law determine that interest instead.
Is the medical-malpractice rate lower? No. It remains 12% per year; subsection (b) changes only the start-date mechanism for the covered actions.
Statutes and sources
- R.I. Gen. Laws § 9-21-10 — https://webserver.rilegislature.gov/Statutes/TITLE9/9-21/9-21-10.HTM (accessed 2026-08-16)
- R.I. Gen. Laws § 9-21-8 — https://webserver.rilegislature.gov/Statutes/TITLE9/9-21/9-21-8.HTM (accessed 2026-08-16)
- R.I. Gen. Laws § 9-31-2 — https://webserver.rilegislature.gov/Statutes/TITLE9/9-31/9-31-2.htm (accessed 2026-08-16)
- Rhode Island H 7033 (2026) — https://webserver.rilegislature.gov/BillText26/HouseText26/H7033.htm (checked 2026-08-16)
Source links
Every statute quoted above, linked, with the date we checked it.
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