Rent increase rules in Connecticut
Verified against Conn. Public Act 24-143 §§ 16-17 and agency sources on 2026-07-04. Not legal advice.
Connecticut has no statewide cap on rent increases.
- Notice: 45 days' written notice before a rent increase takes effect; for lease terms of one month or less, notice equal to the full lease term (PA 24-143, effective Oct 1, 2024)
- Statute: Conn. Public Act 24-143 §§ 16-17 · source
No cap, but municipalities with 25,000+ residents must have Fair Rent Commissions that can reduce 'harsh and unconscionable' rents case-by-case.
Rent increase calculator
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Frequently asked questions
How much can a landlord raise rent in Connecticut?
There is no statewide limit — any amount, with proper notice. No cap, but municipalities with 25,000+ residents must have Fair Rent Commissions that can reduce 'harsh and unconscionable' rents case-by-case.
How much notice is required for a rent increase in Connecticut?
45 days' written notice before a rent increase takes effect; for lease terms of one month or less, notice equal to the full lease term (PA 24-143, effective Oct 1, 2024). (Conn. Public Act 24-143 §§ 16-17)
Can rent be raised during a lease in Connecticut?
No — as everywhere in the US, a fixed-term lease locks the rent unless the lease itself contains an escalation clause. Increases take effect at renewal or on periodic (month-to-month) tenancies with the notice above.
What changed recently in Connecticut?
No cap, but municipalities with 25,000+ residents must have Fair Rent Commissions that can reduce 'harsh and unconscionable' rents case-by-case.
Rent increase rules in other states
All states · Alabama · Alaska · Arizona · Arkansas · California · Colorado · Delaware · District of Columbia · Florida · Georgia
Related: deposit interest rules in Connecticut · vacancy cost calculator