§ 47a-15a

(a) If rent is unpaid when due and the tenant fails to pay rent within nine days thereafter or, in the case of a one-week tenancy, within four days thereafter, the landlord may terminate the rental agreement in accordance with the provisions of sections 47a-23 to 47a-23b, inclusive. For purposes of this section, 'grace period' means the nine-day or four-day time periods identified in this subsection, as applicable.(b) If a rental agreement contains a valid written agreement to pay a late charge in accordance with subsection (a) of section 47a-4 a landlord may assess a tenant such a late charge on a rent payment made subsequent to the grace period in accordance with this section. Such late charge may not exceed the lesser of (1) five dollars per day, up to a maximum of fifty dollars, or (2) five per cent of the delinquent rent payment or, in the case of a rental agreement paid in whole or in part by a governmental or charitable entity, five per cent of the tenant's share of the delinquent rent payment. The landlord may not assess more than one late charge upon a delinquent rent payment, regardless of how long the rent remains unpaid.(P.A. 79-571, S. 36; P.A. 89-254, S. 5; P.A.

inquent rent payment. The landlord may not assess more than one late charge upon a delinquent rent payment, regardless of how long the rent remains unpaid.(P.A. 79-571, S. 36; P.A. 89-254, S. 5; P.A. 23-207, S. 8.)History: P.A. 89-254 provided for a four-day grace period in the case of a one-week tenancy; P.A. 23-207 designated existing provisions as Subsec. (a) and therein defined 'grace period' and added Subsec. (b) establishing maximum charges for late rent payments.