Connecticut Rent Late Fees and Grace Periods

Disclaimer: This guide provides general legal information for educational purposes only and does not constitute legal advice. Always consult a licensed attorney in Connecticut for advice specific to your situation. Information last verified: March 2026.

Connecticut enforces exceptionally strict regulations regarding when and how much a residential landlord can charge for late rent. The state mandates specific grace periods that cannot be waived in a lease agreement, and newly implemented laws impose severe caps on the late fees landlords may charge.

Failing to adhere to the statutory grace period before issuing a Notice to Quit or charging an illegal late fee can result in an eviction lawsuit being dismissed by the judge.

The Mandatory Statutory Grace Period

Connecticut law (C.G.S. § 47a-15a) establishes a mandatory grace period that dictates precisely when rent is legally considered "late."

• Monthly Leases: The law mandates a strict nine (9) day grace period. If rent is due on the 1st of the month, a tenant has until midnight on the 9th to pay. The rent is not legally late until the 10th day of the month.
• Weekly Leases: For tenants who pay rent on a week-to-week basis, the statutory grace period is four (4) days. Rent is not late until the 5th day after the due date.

A landlord cannot charge a late fee, nor can they legally issue a 3-Day Notice to Quit for non-payment, during these grace periods. If a lease attempts to establish a shorter grace period (e.g., stating a late fee applies on the 5th day of a monthly lease), that clause is utterly void and unenforceable in Connecticut.

Caps on Late Fee Amounts

Connecticut law significantly caps the amount a landlord can charge once the statutory nine-day grace period has expired. The late fee structure must be clearly outlined in the written lease agreement, but it cannot exceed the parameters set by the state.

A Connecticut residential landlord may only charge a late fee equal to the lesser of the following two amounts:

1. $5.00 per day for each day the rent is late, up to a maximum cap of $50.00 per month.
2. 5% of the total monthly rent amount. (If the tenant receives a rental assistance subsidy, like Section 8, the late fee cannot exceed 5% of the tenant's specific out-of-pocket rent portion).

Regardless of the scenario, a Connecticut landlord is legally prohibited from assessing more than one late fee for a single delinquent monthly rent payment. A landlord cannot continuously stack consecutive late fees on top of a single missed payment month after month.

Serving a Notice to Quit

The moment the grace period ends—meaning the rent is not received by the 10th day of the month—the landlord is legally within their rights to initiate the eviction process.

The first step is serving the tenant with a 3-Day Notice to Quit Possession. Because the state has already enforced the 9-day grace period to benefit the tenant, the 3-day notice simply provides the tenant three clear days to either negotiate a cure with the landlord or prepare to vacate before the formal summary process begins in court.

See our Eviction Process guide for detailed next steps.

How Landager Helps Connecticut Landlords

Complying with Connecticut's unique 9-day statutory grace period and the intricate "lesser of $5/day or 5%" calculation rule makes manual late fee administration almost impossible. Landager handles Connecticut's complex rent collection laws completely automatically. Our billing system enforces the exact 9-day grace period, calculates the state-capped maximum late fee based on the unique lease amount, and securely updates the tenant's ledger, ensuring your rent rolls remain flawlessly compliant with Title 47a.

Back to Connecticut Landlord-Tenant Laws Overview.