Security deposit laws by state › Connecticut

Connecticut Security Deposit Law and Move-In Costs (2026)

Connecticut caps the security deposit at 2 months' rent and requires it back within 21 days with an itemized statement of deductions.

The rules

  • Maximum deposit: 2 months' rent — One month if the tenant is 62 or older.
  • Return deadline: 21 days. 21 days, or 15 days after receiving a forwarding address, whichever is later.
  • Interest: Required. At the rate set annually by the Banking Commissioner.
  • Separate account: Required.
  • Itemized deductions: Required with the refund.
  • Application fee: No statutory cap.

Statute: Conn. Gen. Stat. §47a-21. As of October 25, 2026.

Move-in cash at $1,500/month

First month's rent$1,500
Security deposit (one month, typical)$1,500
Application fee$40
Utilities and setup$150
Movers$400
Renters insurance$15
Total$3,605

The most a Connecticut landlord may demand as a deposit on this rent is $3,000.

Run your own numbers for Connecticut

Getting the deposit back

Document the unit's condition at move-in with dated photos, give proper notice before leaving, return the keys, and hand the landlord a forwarding address in writing — in Connecticut and most states the return clock does not start until the landlord can reach you. Normal wear and tear cannot be deducted; damage, cleaning beyond normal use and unpaid rent can. If the deadline passes without a refund or itemized statement, small-claims court is the usual remedy, and many states add penalties of two or three times the deposit for bad-faith withholding.

Local rules

Cities and counties can add requirements on top of Connecticut law — interest, caps, inspection rights, fee limits. Check your city's housing or rental-standards office before signing.

Sources

Last reviewed October 25, 2026.