Connecticut Security Deposit Law
What landlords in Connecticut need to know about deposit limits, refund deadlines, interest, and penalties for getting it wrong.
Deposit cap
2 months' rent (1 month if tenant is 62 or older)
Refund deadline
30 days
30 days, or 15 days after receiving tenant's forwarding address, whichever is later.
Interest required?
Yes
Annual interest at a rate set by the state banking commissioner is required.
Separate account?
Not required
Penalty for noncompliance
Wrongful withholding can result in twice the amount owed.
Statute: Conn. Gen. Stat. § 47a-21
This page summarizes general state-level rules as of 2026 and does not cover city or county ordinances, which can be stricter. Verify against the statute cited above or with a local attorney before relying on it. See all states.