Connecticut Landlord-Tenant Laws (2026): Deposits, Notice, and Tenant Rights

Connecticut landlords may collect up to 2 months' rent as a security deposit (1 month for tenants 62 and older) and must return it within 21 days of move-out. Landlords must give reasonable advance notice before entering, and month-to-month tenancies end through a formal notice-to-quit process, not a rolling 30-day notice.

Security deposits in Connecticut

Connecticut caps the security deposit at 2 months' rent for most tenants. If the tenant is 62 years of age or older at the time the lease is signed, the cap drops to 1 month's rent. Landlords may deduct unpaid rent, damage beyond normal wear and tear, and other losses permitted by the lease. They must return the deposit (with an itemized deduction statement if anything is withheld) within 21 days after the tenant vacates, or within 15 days after receiving the tenant's forwarding address, whichever comes later. Public Act 23-207 shortened this deadline from 30 days, effective October 1, 2023. Missing the deadline can forfeit the landlord's right to make deductions.

Allowed deductions include unpaid rent, costs to repair damage caused by the tenant (beyond normal wear and tear), and other losses authorized by the rental agreement.

Connecticut does require a separate escrow account. Under CGS 47a-21(h), a landlord must immediately deposit the entire security deposit into one or more escrow accounts at a financial institution, held for the benefit of the tenant, and may withdraw from that account only for the narrow purposes the statute lists (such as returning the deposit or paying the tenant's interest). The landlord must tell the tenant in writing, within 30 days of receiving the deposit, how much is held and which financial institution holds it.

The deposit also earns interest. CGS 47a-21(i) requires the landlord to pay interest at no less than the annual deposit index rate set under CGS 36a-26. That interest is paid to the tenant or credited toward the next rent payment on each anniversary of the tenancy, and any accrued interest is returned with the deposit when the tenancy ends. A landlord who returns the deposit but withholds the accrued interest is liable for twice the interest or $10, whichever is greater.

When can a landlord enter? Notice rules

Connecticut law requires landlords to give "reasonable notice" before entering a rental unit. There is no fixed minimum number of hours set in the statute, unlike the 24- or 48-hour rules in many other states. CGS 47a-16(c) says only that the landlord must give reasonable written or oral notice and may enter only at reasonable times. In practice, 24 hours is the benchmark many Connecticut landlords and leases use for non-emergency entry, but it is a common convention rather than a statutory minimum, and what counts as reasonable depends on the circumstances. Entry for showing the unit to prospective tenants or buyers should also follow this reasonable-notice standard and take place during normal business hours.

Emergency entry (a fire, burst pipe, or similar urgent threat to the property or the tenant's safety) does not require advance notice. Landlords may not abuse the entry right to harass tenants. Repeated unannounced entries, or entries for an improper purpose, can support a tenant's claim for damages under CGS 47a-16a.

Ending a lease: notice to vacate

Connecticut does not use a rolling 30-day notice to end a month-to-month tenancy. Instead, either party starts the process by serving a formal notice-to-quit. A 3-day notice to quit is the first step in an eviction proceeding (called "summary process" in Connecticut). For a month-to-month tenancy being ended without fault, the notice period is tied to the tenancy interval rather than a fixed number of days.

Because Connecticut's termination process is tied to summary-process eviction rules rather than a simple advance-notice period, tenants and landlords should review CGS 47a-23 carefully. For nonpayment of rent or a lease violation, a landlord must serve a proper notice-to-quit and then file for summary process in housing court. See the Connecticut eviction notice page for the specific notice periods and form requirements for each cause type.

Repairs and the warranty of habitability

Under CGS 47a-7, Connecticut landlords must maintain rental units in a condition fit for human habitation. This means keeping the structure weathertight, the plumbing and heating in working order, common areas safe and clean, and all electrical and mechanical systems in compliance with housing and health codes. The warranty cannot be waived in a lease.

If a landlord fails to make repairs affecting essential services (heat, hot water, electricity, plumbing), a tenant may use the repair-and-deduct remedy under CGS 47a-13. The tenant must give the landlord written notice and a reasonable time to fix the problem. If the landlord does not act, the tenant may arrange the repair and deduct the cost from rent, within the limits set by statute. Tenants may also pursue rent escrow through housing court or report violations to the local housing code authority.

Rent, late fees, and rent control

Connecticut caps a late fee at the lesser of two figures: $5 per day up to a maximum of $50, or 5% of the delinquent rent payment. Where a government or charitable entity pays part of the rent, the 5% is measured against the tenant's share of the delinquent payment. Note that the percentage is calculated on the late payment, not on the monthly rent, and that the lower of the two figures controls. A landlord may not assess more than one late charge on a delinquent rent payment, no matter how long the rent stays unpaid. Monthly tenants also have a 9-day grace period (4 days for a one-week tenancy) before a late fee may be charged. The grace period definition and the late-charge cap were added to CGS 47a-15a by Public Act 23-207, Section 8, in the 2023 legislative session, the same act that shortened the deposit return deadline.

There is no requirement for advance written notice before a rent increase in Connecticut, but it is considered best practice and is implied by the obligation to give notice before changing lease terms. For a month-to-month tenancy, a rent increase would typically be presented with the notice-to-quit that starts the renewal process.

Connecticut does not have statewide rent control and there are no municipal rent-control ordinances currently in effect anywhere in the state. Landlords may set rents at market rates and increase them as permitted by the lease.

That does not leave a tenant without recourse against a steep increase. Under CGS 7-148b, any town, city or borough with a population of 25,000 or more must adopt an ordinance creating a fair rent commission, and smaller municipalities may create one (or a joint one with a neighboring town). A fair rent commission receives complaints, holds hearings, and issues orders to control and eliminate excessive rental charges. CGS 7-148c lists what the commission weighs in deciding whether a rent or a proposed increase is so excessive as to be harsh and unconscionable, including the sanitary condition of the unit, needed repairs, the landlord's taxes and expenses, and the amount and frequency of past increases. Filing that complaint is a protected act: under CGS 47a-20, a landlord may not raise the rent, cut services, or move to evict within six months after a tenant files with a fair rent commission. Check whether your municipality has a commission before assuming a large increase is simply final.

If you have a landlord-tenant dispute in Connecticut

If a landlord withholds your deposit without justification or misses the 21-day return deadline, your first step is to send a written demand letter. Keep copies of all communications, photos of move-out conditions, and proof you gave a forwarding address. Small claims court (housing division) handles deposit disputes up to $5,000 and is the fastest path to recovery.

For habitability or repair disputes, document the condition in writing and notify the landlord with a specific request and deadline. If the landlord does not respond, contact your local housing code inspector. Code complaints are official, documented, and can support a later court claim. The Connecticut Fair Housing Center (ctfairhousing.org) provides guidance on discrimination and habitability issues. Connecticut Legal Services (ctlawhelp.org) offers free assistance to qualifying tenants.

For complex disputes, such as wrongful eviction or retaliation, consult a licensed attorney. Connecticut has anti-retaliation protections under CGS 47a-20: a landlord may not raise rent, reduce services, or initiate eviction because a tenant exercised a legal right (like filing a code complaint).

This article is general legal information, not legal advice. Landlord-tenant rules vary by state and city and change, and some cities add their own ordinances. For advice about a specific situation, consult a licensed attorney or your state housing agency.

Related pages: Landlord-Tenant Laws by State (hub) | Connecticut Eviction Notice | Connecticut Squatters Rights

More Connecticut Laws

• Connecticut Property Records
• Connecticut Restraining Order Laws
• Connecticut Squatters Rights Laws
• Connecticut Unclaimed Property

Frequently Asked Questions

How long does a landlord have to return my deposit in Connecticut?

21 days after you vacate, or 15 days after the landlord receives your forwarding address, whichever comes later. This deadline was shortened from 30 days by Public Act 23-207, effective October 1, 2023. If the landlord misses it, they may lose the right to make any deductions.

What is the maximum security deposit in Connecticut?

2 months' rent for most tenants. If you are 62 years of age or older at the time you sign the lease, the cap is 1 month's rent.

Does my Connecticut security deposit have to be held in escrow and earn interest?

Yes to both. CGS 47a-21(h) requires the landlord to deposit the full amount immediately into an escrow account at a financial institution held for your benefit, and to tell you in writing within 30 days how much is held and where. CGS 47a-21(i) requires interest at no less than the annual deposit index rate, paid to you or credited toward rent each year and returned with the deposit at the end of the tenancy.

How much notice must a landlord give to enter in Connecticut?

Reasonable written or oral notice is required under CGS 47a-16(c). Connecticut does not set a fixed number of hours, though 24 hours is a common practical benchmark for non-emergency entry rather than a statutory minimum. In a genuine emergency, the landlord may enter without advance notice.

How much notice is needed to end a month-to-month lease in Connecticut?

Connecticut uses a notice-to-quit rather than a rolling 30-day advance-notice system. A 3-day notice to quit begins the summary-process eviction proceeding. There is no simple 30-day written notice to terminate without going through the court process.

Can a landlord raise rent in Connecticut?

Yes. Connecticut has no statewide rent control and no local rent-control ordinances, so landlords may raise rent to market rates. But under CGS 7-148b every town of 25,000 or more must have a fair rent commission, which can hold a hearing and order an excessive rent or increase reduced using the factors in CGS 7-148c. Filing with the commission is protected from retaliation under CGS 47a-20.

Can I withhold rent for repairs in Connecticut?

Connecticut allows a limited repair-and-deduct remedy for essential services (heat, hot water, plumbing, electricity) under CGS 47a-13. You must give the landlord written notice and allow a reasonable time to fix the problem before deducting repair costs from rent. For other habitability issues, the remedies are rent escrow and code complaints.

What are the late-fee rules in Connecticut?

Under CGS 47a-15a, a late fee may not exceed the lesser of $5 per day up to a maximum of $50, or 5% of the delinquent rent payment. The 5% is measured on the late payment, not on the monthly rent, and only one late charge may be assessed per delinquent payment however long it stays unpaid. Monthly tenants have a 9-day grace period before a late fee can legally be charged.