2026 Connecticut judgment & prejudgment interest rates
Current 2026 snapshot: Connecticut post-judgment interest is up to 10% per year; the recorded prejudgment reference is up to 10% per year.
Everything Connecticut charges in interest on a money judgment or an overdue debt, in one place — the rate after judgment and the rate before it, each recorded with a cited source and linked to its full page with observations, scope, and known carve-outs.
| Metric | Rate or rule | Effective | Authority | Basis |
|---|---|---|---|---|
| Post-judgment interest | up to 10% | May 27, 1997 | Conn. Gen. Stat. §§37-3a–37-3c | Statutory branches |
| Prejudgment interest | up to 10% | July 9, 2026 | Conn. Gen. Stat. §37-3a | Discretionary, capped |
Post-judgment interest
Connecticut's post-judgment interest rate is up to 10% per year. Connecticut does not apply one automatic 10% rate to every judgment. Under Conn. Gen. Stat. §37-3a, a court may award up to 10% per year as damages for detention of money; qualifying hospital-service debt is capped at 5% and remains discretionary. Section 37-3b separately requires 10% in covered negligence actions, while §37-3c uses a Treasury-linked condemnation rule.
→ Full Connecticut post-judgment page — Conn. Gen. Stat. §§37-3a–37-3c, effective-date history, scope, and official source.
Prejudgment interest
Connecticut's prejudgment interest rate is up to 10% per year (discretionary, capped). Under Conn. Gen. Stat. §37-3a, a court may award prejudgment interest of up to 10% per year as damages for detaining money after it becomes payable. It is not an automatic 10% award. For debt arising from hospital services, both pre- and post-judgment interest are capped at 5% and the award remains discretionary.
→ Full Connecticut prejudgment page — Conn. Gen. Stat. §37-3a, when it applies, accrual, compounding, and carve-outs.
Frequently asked
What is the post-judgment interest rate in Connecticut?
As of May 27, 1997, the Connecticut post-judgment interest rate is up to 10% per year. Connecticut’s branching judgment-interest rules and 10% ceiling.
What is the prejudgment interest rate in Connecticut?
Connecticut's prejudgment interest rate is up to 10% per year (discretionary, capped). Available only when the court finds a qualifying detention of money after it became payable.
Is Connecticut judgment interest simple or compound, and when does it start?
Because entitlement, start date, percentage, tolling, claim type, and the condemnation calculation differ by branch, StatuteRates treats 10% as a ceiling/reference—not a universal calculator input—and keeps the Connecticut payoff calculator disabled. For a negligence cause of action arising on or after May 27, 1997, §37-3b computes interest from the earlier of 20 days after judgment or 90 days after verdict. A plaintiff’s own postverdict motion or appeal can toll interest, subject to the statute’s response exception.
Cite this page
StatuteRates. “Connecticut Judgment & Prejudgment Interest Rates.” StatuteRates.com. Accessed today. https://statuterates.com/states/connecticut/ Each rate includes a cited source and recorded effective date; confirm the controlling authority before use.
Compare every state on the state interest-rate index and the prejudgment interest index, or enter a confirmed rate in the judgment interest and per-diem calculator. Reference data only — not legal advice.