Connecticut Late Fee Calculator
Check the maximum late fee Connecticut allows, the grace period, and the exact law — then calculate your allowable fee.
Updated October 2026 · Reviewed by the ValidNotice editorial team · Informational only — not legal advice
Calculate the allowable late fee
Result
Connecticut late fee rules at a glance
| Maximum late fee | 5% of monthly rent |
|---|---|
| Grace period | 9 days |
| Governing law | Conn. Gen. Stat. §47a-4 (existing law per 2026 CT bill analysis) |
What Connecticut law says about late fees
Connecticut caps residential late fees at 5% of the monthly rent. On a $1,000-a-month rental, the most a landlord may charge for one late payment is $50.
The cap is a ceiling, not a default: your lease must still state the fee, and you may charge less than the maximum. Charging more than the cap risks the excess being declared unenforceable — and in a dispute or an eviction case, an unlawful fee can undermine your whole position.
The exact Connecticut rule: Cap is the lesser of $5 per day (maximum $50) or 5% of the overdue rent. Nine-day grace for ordinary monthly tenancies; four days for weekly tenancies.
The Connecticut grace period
Connecticut gives tenants a 9-day grace period: rent is not legally “late” — and no late fee may be charged — until 9 days after the due date. If the tenant pays within that window, the calculator above correctly shows no fee.
Charging late fees in Connecticut: putting it into practice
Three habits keep Connecticut late fees defensible. First, put the exact fee in the lease before it is ever needed — you cannot invent a charge after the rent is already late. Second, apply it consistently and keep records: when rent was due, when it arrived, and what was charged. Third, remember that cities and counties can add their own rules on top of state law, so confirm local ordinances before relying on the statewide rule alone.
Sources
- Conn. Gen. Stat. §47a-4 (existing law per 2026 CT bill analysis) — Connecticut Legislature — official site
- ValidNotice 50-state landlord-tenant research dataset, verified October 2026.
Frequently asked questions
What is the maximum late fee a Connecticut landlord can charge?
The legal maximum is 5% of monthly rent. Your lease must still state the fee, and charging more than the cap risks the excess being unenforceable. The exact rule: Cap is the lesser of $5 per day (maximum $50) or 5% of the overdue rent. Nine-day grace for ordinary monthly tenancies; four days for weekly tenancies.
Is there a grace period for late rent in Connecticut?
Yes — 9 days. No late fee may be charged until 9 days after the due date, and rent paid within that window is not legally late.
What if my lease charges more than the Connecticut cap?
The excess may be unenforceable. The calculator above automatically reduces the allowable fee to the legal maximum of 5% of monthly rent — update the lease clause to match the cap rather than charging the higher figure.
Can I charge a late fee every day the rent is late in Connecticut?
Generally, treat the late fee as a single charge per late payment rather than a daily penalty. A few states build per-day amounts into their caps (for example, Connecticut’s $5-per-day structure within its $50/5% ceiling, and Iowa’s tiered per-day limits) — follow the exact rule cited above and whatever your lease says, and never stack fees to punish.
Is this legal advice?
No. This page summarizes our researched Connecticut late-fee data, verified October 2026. Laws change and local ordinances can add rules — verify against current law or consult a local attorney before charging a fee.