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Connecticut

Connecticut Landlord-Tenant Laws

Security deposit limits, eviction notices, rent control, and more for Connecticut.

How we research these summaries

Every rule on this page is drawn from state statutes and municipal codes and summarized with AI assistance. Each one cites the statute it's based on and links to a published text of that law so you can read it firsthand. Where a page says a city or county has no local rule on a topic, that means none was found for the topics covered here — not that none exists. Local governments also regulate rental housing in ways these pages don't track, including registration, licensing, inspections and habitability standards. These summaries may be incomplete or out of date, laws change often, and every property and tenancy has specifics a summary can't capture — so treat this as a starting point for your own research, not as legal advice, and check with the local jurisdiction and a qualified attorney before acting on your particular situation.

What to Know in Connecticut

Sources last checked July 2026

Connecticut does not generally require just cause to evict or decline to renew a lease — expiration of a fixed term is itself a valid ground, and only three days' notice to quit is required across grounds. A narrower carve-out protects 'protected tenants': those 62 or older, or living with a qualifying relative or serious disability, in a building of five or more units or a mobile home park, for whom the landlord may proceed only on enumerated grounds. Security deposits are capped at two months' rent generally, or one month for tenants 62 and older.

  • Connecticut requires at least three days' notice to quit before a summary process action, and that three-day period is uniform across grounds — lapse of time, nonpayment, lease...
  • Connecticut sets no statutory notice period for a tenant ending a month-to-month tenancy.
  • Connecticut has no statewide cap on the size of a rent increase.
  • Connecticut requires 45 days' written notice of a rent increase for leases longer than a month, and notice equal to one full lease term for month-to-month or week-to-week tenancies.
  • Security deposits capped at 2 months' rent
5 rules summarized · Each linked to the law it cites

Security Deposit Limits

Security Deposit Limits

What is the security deposit limit in Connecticut?

A Connecticut landlord shall not demand a security deposit in an amount that exceeds two months' rent, and for a tenant who is sixty-two years of age or older that limit is reduced to one month's rent (C.G.S. § 47a-21). The deposit must be returned not later than twenty-one days after termination of the tenancy or fifteen days after the landlord receives written notification of the tenant's forwarding address, whichever is later, together with any accrued interest and a written statement of any damages claimed. A landlord who fails to comply may be liable for twice the amount of the deposit.

C.G.S. § 47a-21

Eviction Notice Requirements

Eviction Notice Requirements

What are the eviction notice requirements in Connecticut?

Connecticut requires at least three days' notice to quit before a summary process action, and that three-day period is uniform across grounds — lapse of time, nonpayment, lease violation and nuisance alike (C.G.S. § 47a-23(a)). For nonpayment there is a grace period first: the tenant must fail to pay within nine days of the due date, or within four days in the case of a one-week tenancy, before the process may begin (§ 47a-15a). Connecticut does NOT require just cause for most evictions — "lapse of time" is itself a valid ground, so a landlord may generally decline to renew at the end of a lease. A narrower just-cause protection applies only to protected tenants under § 47a-23c: a tenant who resides in a building or complex of five or more separate dwelling units, or in a mobile manufactured home park, AND who is either sixty-two years of age or older, or lives with a spouse, sibling, parent or grandparent who is, or who has a physical or mental disability expected to result in death or to last at least twelve continuous months. For those tenants a landlord may proceed only on enumerated grounds — nonpayment, refusal of a fair and equitable rent increase, material noncompliance affecting health or safety, material lease or rule violations, permanent removal of the unit from the housing market, or the landlord's bona fide intent to occupy the unit as a principal residence — and lapse of time is not among them. A landlord may demand proof of protected status, and the tenant has thirty days to supply it.

C.G.S. §§ 47a-23, 47a-23c, 47a-15a

Rent Increase Notice Periods

Rent Increase Notice Periods

How much notice is required for rent increases in Connecticut?

Connecticut requires 45 days' written notice of a rent increase for leases longer than a month, and notice equal to one full lease term for month-to-month or week-to-week tenancies. No rent increase for a dwelling unit is effective unless the landlord has given the tenant written notice of the proposed increase not less than forty-five days before the day on which the increase is proposed to take effect (C.G.S. § 47a-4e); except that in the case of a lease with a term of one month or less, the notice must be given a number of days equivalent to the length of a full term of that lease. A tenant's failure to respond to the notice does not constitute agreement to the increase. The section sets no separate penalty for short notice — the consequence is that the increase simply is not effective, so the prior rent continues to apply. This requirement took effect October 1, 2024 and applies to rental agreements entered into, renewed or extended on or after that date.

C.G.S. § 47a-4e (Public Act 24-143)

Rent Control / Rent Increase Caps

Rent Control / Rent Increase Caps

Is there rent control in Connecticut?

Connecticut has no statewide cap on the size of a rent increase. It does require municipalities to maintain a Fair Rent Commission, which is meaningfully more than no regulation at all: a commission may find a rent or a rent increase excessive — harsh and unconscionable — and order it reduced (C.G.S. § 7-148b). The mandate historically reached municipalities with populations of 25,000 or more. Public Act 25-1, signed in November 2025, extended it to municipalities of 15,000 or more, with covered municipalities required to establish or join a commission by January 1, 2028; some published compilations of the statute still print the earlier 25,000 threshold and have not yet caught up to that act. A tenant facing a large increase in a covered municipality petitions the local commission, because there is no statutory ceiling to appeal to.

C.G.S. § 7-148b; Public Act 25-1 (2025)

Move-Out & Lease Termination Notice

Move-Out & Lease Termination Notice

What is the move-out notice requirement in Connecticut?

Connecticut sets no statutory notice period for a tenant ending a month-to-month tenancy. The lease may specify one, and where it does the lease governs. Absent a lease term, thirty days is common practice rather than a legal requirement, and should not be read as a statutory minimum. On the landlord's side, ending a tenancy requires a notice to quit of at least three days before the termination date specified in the notice (C.G.S. § 47a-23(a)), and lapse of time is a valid ground — except as to protected tenants under § 47a-23c, for whom only the enumerated just-cause grounds are available.

C.G.S. § 47a-23 (landlord notice to quit); no statutory tenant notice provision

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