Connecticut Late Fee Calculator

Find the legal maximum late fee in Connecticut. Based on Conn. Gen. Stat. §37-3a (legal rate of interest).

Max per month
1.5%
Annualized cap
18%
Written agreement
Required
Grace period
0 days

Connecticut Late Fee Calculator

Based on Conn. Gen. Stat. §37-3a (legal rate of interest)

Late fee owed$15.00

QuickBillMaker applies late fees automatically based on your configured policy. Set it once and stop chasing payments by hand.

How Connecticut late fees work

In Connecticut, late payment fees on commercial invoices are governed by Conn. Gen. Stat. §37-3a (legal rate of interest). The legal maximum is 1.5% per month (18% annualized). Legal rate 8% per year for civil judgments. Written contracts may set higher rates. Late fees must be reasonable.

The fee must be stated in a written agreement before the work is performed. Without a written rate, only the statutory default rate applies.

Connecticut prompt-pay law

Connecticut Prompt Payment Act (Conn. Gen. Stat. §49-41a for construction; §4a-71 for state) Construction subs paid within 30 days of GC receiving payment; 1% per month interest if late.

Stop calculating late fees by hand

QuickBillMaker applies your Connecticut late fee rate automatically when invoices go overdue.

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