Connecticut Month-to-Month Lease: No 30-Day Rule, 45-Day Hikes

By Steve Levine · Updated November 3, 2026

Short answer: No Connecticut statute sets a 30- or 60-day notice to end a Connecticut month to month lease. Instead, Conn. Gen. Stat. § 47a-3d treats an oral monthly lease as a lease for one month only, and a landlord who wants possession serves a notice to quit under § 47a-23 at least three days before the quit date. What Connecticut does guarantee is 45 days’ written notice before any rent increase, under § 47a-4e, plus good-cause protection for many older and disabled tenants.

That combination surprises people moving from states with a clear 30-day rule. In Connecticut, the end of each month is legally the end of the tenancy’s term, so the fight is usually over the notice to quit and the eviction case that follows, not over a long advance-notice period.

Connecticut Month to Month Lease Rules in a Table

Rule	Connecticut	Statute
Default with no fixed term	Month-to-month; week-to-week if rent is paid weekly	§ 47a-3b
Oral lease at a monthly rent	Construed as a lease for one month only	§ 47a-3d
Tenant’s notice to end	No statutory period; follow the lease	Chapter 830
Landlord’s notice to quit (lapse of time)	At least 3 days before the quit date, and not before the period ends	§ 47a-23(a)
Good cause required	Tenants 62+ or with a qualifying disability, in buildings of 5+ units or mobile home parks	§ 47a-23c
Rent-increase notice	45 days’ written notice; one full term for leases of a month or less	§ 47a-4e
Challenging an excessive increase	Fair rent commission, required in towns of 25,000+	§ 7-148b

How Connecticut Defines a Monthly Tenancy

Under § 47a-3b, unless the rental agreement fixes a definite term, the tenancy is month to month, except that a tenant who pays weekly rent has a week-to-week tenancy. If you and the owner never agreed on a price, § 47a-3c requires you to pay the fair rental value for your use and occupancy.

Section 47a-3d adds the older rule that gives Connecticut its distinctive shape. Parol (oral) leases that reserve a monthly rent with no agreed end date “shall be construed to be leases for one month only.” The Judicial Branch’s landlord-tenant rights booklet describes an oral lease as usually month to month, continuing without a final date until the landlord or tenant ends it.

Holding over after a lease

The same section says that holding over after a lease expires “shall not be evidence of any agreement for a further lease.” Staying on does not by itself renew a one-year lease. Whether you become a month-to-month tenant depends on what you and the landlord agree to afterward, such as the landlord accepting monthly rent, so put any new arrangement in writing.

Ending a Connecticut Month to Month Lease as a Tenant

We read Chapter 830, the landlord-tenant chapter, and found no section that sets the notice a tenant must give to end a month-to-month tenancy. If you have a written month-to-month agreement, its notice clause controls. The Judicial Branch booklet says only that a tenant who is moving out should give the landlord proper advance notice and return the key.

In practice, giving written notice at least a full rental period ahead, ending on the last day of a month, avoids an argument that you owe another month. Keep a dated copy, and send your forwarding address in writing so your security deposit can be returned.

How a Landlord Ends It: The Notice to Quit

A Connecticut landlord does not send a 30-day letter first. Under § 47a-23(a), when a written or oral rental agreement terminates by lapse of time, the owner gives each tenant or occupant a notice to quit at least three days before the termination of the rental agreement or the quit date. Lapse of time is one of several listed grounds, along with nonpayment within the grace period, lease violations and nuisance.

The Judicial Branch’s landlord’s guide to eviction explains the timing for lapse-of-time cases: the tenant must get at least three full days and at least until the end of the period they would normally have been entitled to stay. Its example is an oral May lease. A notice served May 20 must allow the tenant until May 31, the end of the month. The guide adds that service by a state marshal satisfies the service requirement.

Only after the quit date passes can the landlord file a summary process (eviction) case. The notice itself does not remove anyone.

Good cause for older and disabled tenants

Section 47a-23c applies to tenants in a building or complex of five or more units, or in a mobile manufactured home park, who are 62 or older or live with a spouse, sibling, parent or grandparent who is, or who have a physical or mental disability expected to last at least 12 months, or live with a family member who does. For them, lapse of time is not enough.

A landlord may evict a protected tenant only for reasons listed in § 47a-23c(b)(1): nonpayment, refusal to agree to a fair and equitable rent increase, material noncompliance affecting health, safety or the premises, material lease violations, rule violations, permanently removing the unit from the housing market, or a bona fide intent to live in the unit as the landlord’s principal residence.

Worked Example: A Norwalk Apartment

Denise rents a unit in a 12-apartment building in Norwalk for $1,800 a month on an oral agreement, paying on the 1st. She is 66.

Under § 47a-3d, her lease runs one month at a time. If she decides to move, the statute sets no notice period, so she gives her landlord a dated letter on August 25 saying she will leave by September 30 and lists her forwarding address.
If instead the landlord wanted her out because the month ended, § 47a-23c would block a lapse-of-time eviction. She is over 62 in a building of five or more units, so the landlord would need one of the listed good-cause reasons.
If the landlord wanted to raise her rent to $1,950 starting November 1, § 47a-4e requires written notice at least 45 days earlier, by September 17. Silence would not count as her agreement.

Count your own dates with the notice deadline calculator.

Week-to-Week Tenancies

A tenant who pays weekly with no fixed term is week to week under § 47a-3b. For rent increases, § 47a-4e requires notice equal to one full term of the lease when the term is a month or less, so a weekly tenant gets one week’s written notice. The Judicial Branch booklet notes that the grace period before a landlord can start eviction for unpaid rent is shorter for weekly tenancies: four days after the due date, compared with nine for monthly ones.

Rent Increases and the 45-Day Rule

Under § 47a-4e, no rent increase is effective unless the landlord gives written notice at least 45 days before the day it takes effect. A tenant’s failure to respond is not agreement to the increase, and the section does not allow an increase during the term of a rental agreement. It was added by Public Act 24-143 and applies to rental agreements entered into, renewed or extended on or after October 1, 2024.

Section 47a-4e governs notice, not the size of an increase. For the amount, Connecticut relies on local review. Section 7-148b requires every town, city or borough with 25,000 or more residents to create a fair rent commission, and lets smaller towns create one. The commission hears complaints about rental charges, and § 7-148c lists factors for deciding whether an increase is so excessive as to be harsh and unconscionable.

Filing that complaint is protected. Under § 47a-20, a landlord may not sue for possession, demand a rent increase or cut services within six months after you file with a fair rent commission, ask in good faith for repairs, or report a code violation to officials. Our landlord retaliation guide covers the exceptions.

Frequently Asked Questions

Does a Connecticut landlord have to give 30 days’ notice to end my month-to-month tenancy?

No statute requires 30 days. Under § 47a-23, the landlord serves a notice to quit at least three days before the quit date, and the Judicial Branch guide says it must also give you until the end of the rental period. The notice alone does not remove you; the landlord must still win a summary process case.

I’m 70 and live in a large complex. Can my landlord just not renew?

Not on lapse of time alone. Section 47a-23c limits evictions of tenants 62 and older, or with qualifying disabilities, in buildings of five or more units to listed good-cause reasons.

How much notice before my Connecticut rent goes up?

At least 45 days in writing under § 47a-4e, or one full term for a lease of a month or less. You can also ask your town’s fair rent commission to review an increase you think is excessive.

How much notice do I owe my landlord when I move out?

Connecticut’s landlord-tenant statutes do not set a number, so check any written agreement first. Giving written notice a full month ahead, ending at the end of a rental month, is the safest approach.

Can my landlord evict me for complaining to the fair rent commission?

Section 47a-20 bars an eviction action, a rent increase or a cut in services within six months after a good-faith fair rent commission complaint, subject to the exceptions in § 47a-20a.

What to Do Next

If you received a notice to quit, read the date and the reason, check whether you fall under § 47a-23c, and remember you can stay until a court rules. If you are leaving, give written notice a full month ahead and review the Connecticut security deposit law. Compare other states on the month-to-month lease laws by state hub.

This guide is legal information, not legal advice. CTLawHelp lists free legal aid programs, and LSC’s get legal help page can point you to more.

Sources

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