Connecticut prejudgment interest rate
United States Connecticut prejudgment interest is discretionary and capped at 10%.
→ All Connecticut judgment & prejudgment interest rates
Statutory formula / table Discretionary, capped
2026 Connecticut prejudgment interest at a glance
- Current rate
- up to 10% per year
- Effective date
- July 9, 2026
- Controlling authority
- Conn. Gen. Stat. §37-3a
- Rate basis
- Statutory formula / table
- Source checked
- July 26, 2026
- Recorded history
- 1 data point
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.
When Connecticut prejudgment interest applies
§ 37-3a prejudgment interest is available ONLY as "damages for the detention of money after it becomes payable" — i.e., a LIQUIDATED or readily ascertainable sum that was wrongfully withheld after it became due (breach of contract, unpaid debts, wrongfully retained deposits/payments, ascertainable amounts).
When it starts accruing
Interest runs from the date the money became due and payable / the date it was wrongfully withheld (i.e., the date the court determines the money was due), through the date of judgment. Not from date of filing.
Simple or compound
The statute states an annual ceiling but does not itself supply a universal compounding and payment-allocation method. StatuteRates therefore keeps this discretionary branch out of the calculator.
→ Compare with the Connecticut post-judgment interest rate (interest after judgment)
Connecticut General Statutes §37-3a permits a court to award prejudgment interest of up to 10% per year as damages for detention of money after it becomes payable; the percentage and award are discretionary rather than an automatic 10%. For debt arising from hospital services, both prejudgment and postjudgment interest are capped at 5% and remain discretionary. Verify entitlement and the court-selected rate; not legal advice.
Current recorded observation
| Effective date | Rate | Basis |
|---|---|---|
| July 9, 2026 | up to 10% | Statute |
Source & provenance
Observation recorded July 26, 2026 (00:00 UTC) from the cited source (Connecticut General Assembly (official)):
https://www.cga.ct.gov/current/pub/chap_673.htm
Cite this page
StatuteRates. “Connecticut Prejudgment Interest Rate.” StatuteRates.com. Accessed today. https://statuterates.com/rates/connecticut-prejudgment-rate/ Rate recorded under Conn. Gen. Stat. §37-3a, effective July 9, 2026.