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Connecticut Late Fee Laws: The Landlord and Tenant Guide

Nine-Day Grace Period · Five-Percent or Fifty-Dollar Cap · Written-Lease Requirement · Returned-Check Rules · Notice-to-Quit Interplay

Updated Q3 2026 By Tenant Screening Background Check Editorial Team Applies Connecticut ~15 min read

Connecticut is one of the clearest states in the country for late rent fees, because it does not leave the question to a vague reasonableness test. State law fixes two hard rules: a mandatory grace period that must pass before any fee can be charged, and a firm ceiling on the fee itself. Under Connecticut General Statutes section 47a-15a, a landlord may not assess a late charge until the rent is at least nine days late in a monthly tenancy, or four days late in a week-to-week tenancy, and the fee may not exceed the lesser of five dollars per day, up to a maximum of fifty dollars, or five per cent of the delinquent rent payment. That grace period plus that cap drive everything on this page.

This guide walks the full framework in plain English: exactly what Connecticut law limits, how the grace period works and when it starts, the two-part cap and how to compare its figures, the requirement that the fee sit in a valid written lease under section 47a-4, and the crucial point that a lease clause charging a fee before the grace period or above the cap is simply void. It also covers the returned-check rule under section 52-565a and the surprising fact that it excludes residential rent, the notice-to-quit interplay under section 47a-23, the special cases of mobile-home parks and subsidized housing, how a tenant contests an unlawful fee, a practical playbook for both sides, real scenarios, and a Connecticut-specific FAQ.

Because Connecticut writes the grace period and the cap directly into the statute, the safest posture for a landlord is to track the numbers exactly, and the strongest position for a tenant is to know that any fee charged early or above the cap is unenforceable. Treat every figure here as a starting point and verify the current statute before you charge, pay, or dispute a fee.

Connecticut Late Fees at a Glance

Statutory Cap

Lesser of five dollars per day (max fifty) or five per cent of delinquent rent

Grace Period

Nine days monthly; four days weekly

Governing Law

Statutes section 47a-15a and 47a-4

Returned Check

Rent excluded from bad-check damages (52-565a)

Bottom line: Connecticut sets a mandatory grace period and a hard cap for residential rent. Under Connecticut General Statutes section 47a-15a, no late fee may be charged until the rent is nine days late in a monthly tenancy or four days late in a one-week tenancy, and the fee may not exceed the lesser of five dollars per day, up to a maximum of fifty dollars, or five per cent of the delinquent rent payment. The fee must be in a valid written lease under section 47a-4, and a clause charging a fee before the grace period or above the cap is void. The bad-check civil-damages statute, section 52-565a, expressly excludes checks for the rental of residential premises, so those damages do not reach a bounced rent check. These are general rules; verify the current statute before you charge or dispute a fee.

Late Fees: The Narrow Legal Question

Before diving into the numbers, it helps to see exactly what Connecticut law does and does not control. A late fee is not rent. It is a contractual charge the landlord seeks to add when rent arrives late. What makes Connecticut different from many states is that it does not leave that charge to an open reasonableness test decided case by case. Instead, the legislature wrote the answer into the statute: there is a fixed grace period before any fee can be charged, and a fixed cap on how much the fee can be.

So the narrow legal question in Connecticut is not “what would a court consider a reasonable late fee?” The statute already answers it. The real questions are simpler and more concrete: Has the grace period passed? and Is the fee within the statutory cap? and Does a valid written lease clause authorize it? If all three are yes, the fee is enforceable. If the fee was charged early, exceeds the cap, or is not in the lease, it is not. Everything else on this page orbits those three checkpoints.

This makes Connecticut relatively predictable. A landlord who tracks the nine-day and four-day grace periods and holds the fee to the lesser of the two statutory figures can charge a valid late fee with confidence. A tenant, in turn, can measure any fee against the same fixed rules rather than arguing about what is reasonable. The certainty cuts both ways, which is exactly why understanding the two numbers matters so much.

Takeaway

Connecticut does not use an open reasonableness test. It writes the answer into statute: a mandatory grace period before any fee can be charged and a hard cap on the amount. The three questions are whether the grace period has passed, whether the fee is within the cap, and whether a valid lease clause authorizes it.

Is There a Statutory Grace Period?

Yes, and this is where Connecticut departs sharply from states with no statutory cushion. Under Connecticut General Statutes section 47a-15a, rent is within its grace period for nine days after it is due in a monthly tenancy, and for four days after it is due in a one-week tenancy. During that window the rent is late in the ordinary sense, but the landlord may not yet assess a late charge and may not yet begin the nonpayment termination process. The grace period is a genuine statutory guarantee, not merely something the lease might grant.

The nine-day and four-day figures are tied to the type of tenancy. Most residential renters pay monthly, so the nine-day period is the one that usually applies. A tenant on a weekly rental has the shorter four-day cushion. The statute even defines the term: the “grace period” means the nine-day or four-day time period, as applicable. That built-in definition removes the guesswork that plagues states where any cushion is purely a matter of the written lease.

What the Grace Period Actually Does

The grace period is a hard gate on two things. First, no late fee may attach until it has passed, so a fee assessed on day three of a monthly tenancy is unlawful no matter what the lease says. Second, the landlord’s power to terminate for nonpayment does not arise until the grace period runs. If rent is unpaid when due and the tenant does not pay within the nine days, or the four days for a weekly tenancy, the landlord may then move toward terminating the rental agreement. Until then, the tenant is late but protected from both the fee and the termination clock.

The grace period is a floor, not a ceiling

The statute sets the minimum cushion the landlord must give before charging a fee or acting on nonpayment. A lease can be more generous, granting a longer window, but it cannot be less generous by shrinking the nine-day or four-day period. Any clause that tries to charge a late fee before the grace period expires is void under section 47a-4, so a landlord gains nothing by writing a shorter cushion into the lease.

Takeaway

Connecticut guarantees a statutory grace period under section 47a-15a: nine days for a monthly tenancy and four days for a one-week tenancy. No late fee may be charged and no nonpayment termination may begin until it has passed. The lease can lengthen it but never shorten it.

The Cap and Grace Period: Connecticut’s Anchor

This is the heart of Connecticut late-fee law, and it is a two-part rule. Under Connecticut General Statutes section 47a-15a, once the grace period has passed and the rent is still unpaid, a landlord with a valid written late-fee clause may assess a late charge that may not exceed the lesser of two figures: (1) five dollars per day, up to a maximum of fifty dollars, or (2) five per cent of the delinquent rent payment. The word that does the work is “lesser.” The landlord must compute both figures for the actual delinquent amount and charge no more than the smaller one.

Because the cap is the lesser of the two, the size of the rent decides which figure controls. On smaller delinquent amounts, five per cent is often the smaller number and becomes the ceiling. On larger amounts, the fifty-dollar maximum on the day rate is smaller and becomes the ceiling. The two-part structure means there is no single dollar figure that is always right; the correct cap depends on the delinquent rent in front of you, which is why comparing the two numbers each time is essential.

Worked Examples of the Cap

A few concrete comparisons make the rule clear. On delinquent rent of six hundred dollars, five per cent is thirty dollars, and thirty dollars is below the fifty-dollar day-rate maximum, so the cap is thirty dollars. On delinquent rent of one thousand dollars, five per cent is fifty dollars, which equals the day-rate maximum, so the cap is fifty dollars. On delinquent rent of two thousand dollars, five per cent would be one hundred dollars, but the fifty-dollar maximum is smaller, so the cap holds at fifty dollars. In every case the landlord takes the lesser figure, and no fee may exceed fifty dollars in total.

The five-dollar-per-day piece is bounded

The day-rate part of the cap lets a fee grow at five dollars for each day the rent is late, but it stops at a maximum of fifty dollars. It cannot run indefinitely. And because the overall cap is the lesser of the day rate and five per cent of the delinquent rent, the day-rate figure is only lawful when it is the smaller of the two. A landlord using a per-day charge must therefore stop at fifty dollars and confirm it is still below five per cent of the delinquent rent for that month.

Delinquent rentWhich figure is lesser, and the cap
Six hundred dollarsFive per cent is thirty dollars, below the fifty-dollar day-rate maximum — cap is thirty dollars
One thousand dollarsFive per cent is fifty dollars, equal to the day-rate maximum — cap is fifty dollars
Two thousand dollarsFive per cent is one hundred dollars, but the fifty-dollar maximum is lesser — cap is fifty dollars
Any amountFee may never exceed fifty dollars, and never accrues during the grace period

Takeaway

Under section 47a-15a a Connecticut late fee may not exceed the lesser of five dollars per day up to a maximum of fifty dollars, or five per cent of the delinquent rent. Compare both figures for the actual delinquent amount and charge the smaller. No fee may exceed fifty dollars, and none accrues during the grace period.

When a Fee May Be Charged and the Written-Lease Requirement

A late fee cannot appear out of thin air, and in Connecticut the timing is set by law. To charge a fee at all, the landlord must satisfy two conditions. First, the grace period must have passed — nine days for a monthly tenancy, four for a weekly one. Second, the fee must be authorized by a valid written agreement in the lease. Section 47a-15a says a landlord may assess a late charge only where the rental agreement contains a valid written agreement to pay one in accordance with section 47a-4. If the lease is silent on late fees, there is no fee to collect.

Section 47a-4 tightens the requirement in a way that protects tenants directly. A lease provision by which the tenant agrees to pay a late charge before the grace period expires is void, and so is a provision agreeing to pay a late charge above the amount allowed by section 47a-15a. In other words, a landlord cannot draft around the statute. Even a signed lease clause is unenforceable if it charges the fee too early or sets it too high. The written-lease requirement opens the door, but the clause must still track the grace period and the cap to have any effect.

A lease clause that violates the statute is void

The most common Connecticut late-fee error is a lease that charges a fee on day one, or that sets a flat fee above the cap. Both are void under section 47a-4, not merely reducible. A landlord who relies on such a clause has no enforceable fee for the offending amount or timing. Draft the clause to charge only after the grace period and only up to the lesser of the two statutory figures, and it will hold; draft it to grab more, and the excess simply disappears.

Takeaway

A Connecticut late fee is enforceable only if the grace period has passed and a valid written lease clause authorizes it under section 47a-4. A clause that charges before the grace period, or above the section 47a-15a cap, is void. The landlord cannot draft around the statute.

NSF and Returned-Check Fees

A bounced rent check is governed by its own statute, and Connecticut carries a state-specific twist that catches many landlords off guard. The general bad-check civil-damages statute is Connecticut General Statutes section 52-565a. It lets a payee recover damages when a check is dishonored and the drawer fails to pay after a second written demand mailed by the payee, with the drawer then having thirty days to pay. The damages can reach up to seven hundred fifty dollars for a check drawn on no account, or up to four hundred dollars for a check returned for insufficient funds, and the statute permits a service charge on the drawer of up to twenty dollars.

Here is the twist that matters for rent: section 52-565a expressly excludes a check given as payment for the rental of residential premises from those civil damages, alongside checks for residential utilities. So a Connecticut landlord generally cannot use the bad-check damages remedy for a bounced rent check. What the landlord can still do is recover the face amount of the check as an ordinary debt, and charge a returned-check fee that the lease itself provides, subject to the ordinary rules on lease charges. But the special civil-damages machinery of section 52-565a does not reach residential rent.

Keep the returned-check charge and the late fee distinct

A bounced check can make the rent late, which may trigger a late fee once the grace period passes, and can also trigger a lease-based returned-check charge. These rest on different rules. The late fee is capped by section 47a-15a at the lesser of five dollars per day up to fifty dollars or five per cent of the delinquent rent. The bad-check civil damages of section 52-565a do not apply to residential rent at all. Treat each charge separately and keep each within its own rule.

Takeaway

Connecticut’s bad-check statute, section 52-565a, excludes checks for the rental of residential premises, so its civil damages do not reach a bounced rent check. A landlord may still recover the check amount as a debt and charge a lease-based returned-check fee, but the special bad-check damages simply do not apply to rent.

Can a Late Fee Lead to Eviction? The Notice-to-Quit Interplay

This is where late-fee questions meet eviction law. A Connecticut nonpayment eviction does not begin the moment rent is late. First the grace period must run — nine days for a monthly tenancy, four for a weekly one, under section 47a-15a. Only after that, if the rent is still unpaid, may the landlord serve a notice to quit under Connecticut General Statutes section 47a-23, which gives the tenant at least three days before the tenancy is terminated. The grace period is a precondition; the landlord cannot skip it and jump straight to the notice.

The key point for late fees is that the thing driving a nonpayment eviction is rent, not the late fee. A late fee is a separate contractual charge, capped by section 47a-15a and not part of the base rent obligation. A tenant who pays the actual rent owed generally cannot lose the home over an unpaid late fee alone. Confusing or overstating the amount owed in a nonpayment case can create real problems for a landlord, so the disciplined practice is to keep the base rent figure clean and pursue any valid late fee as a separate matter rather than bundling it into the nonpayment demand. Our Connecticut eviction notice laws guide walks the full summary-process sequence.

That does not mean a valid late fee is uncollectible. It means the collection path is different. A landlord may pursue an unpaid, enforceable late fee as an ordinary contract debt — in small claims court, for example, or by deducting it from the security deposit at move-out if the lease allows and the fee is valid — a step governed by the Connecticut security deposit laws. What a landlord should not do is let a small, disputed late fee complicate a nonpayment case that is really about the rent.

Do not begin nonpayment steps during the grace period

A landlord who serves a notice to quit for nonpayment before the nine-day grace period has run has acted too early, because the power to terminate for nonpayment does not arise until the grace period passes. Wait out the nine days for a monthly tenancy, or four for a weekly one, keep the demand focused on the actual rent, and collect any valid late fee separately. Jumping the grace period or muddling rent with fees invites a defense that can derail the case.

Takeaway

A Connecticut nonpayment eviction requires the grace period to run first, then a notice to quit under section 47a-23 giving at least three days. The eviction turns on rent, not the late fee. A valid late fee is collectible as a separate debt — small claims or the deposit — not through the nonpayment machinery.

Special Cases: Mobile Homes, Subsidized and Weekly Tenancies

The general grace-period-and-cap rule is the baseline, but several categories of housing carry their own layered rules, and the ordinary analysis is not the whole story for them.

Mobile-Manufactured-Home Parks

A resident who owns a mobile manufactured home and rents a lot in a licensed park is governed by Chapter 412 of the Connecticut General Statutes, not the ordinary apartment framework in Chapter 830. Chapter 412 sets its own grounds and procedures for a nonpayment summary-process action against a park resident, including the timing under section 21-80. A park owner cannot simply import an apartment-style late-fee practice; the mobile-home statute governs how and when the park may act on unpaid lot rent. A park resident should read the lot rental agreement against Chapter 412 rather than assuming the general residential rules apply unchanged.

Subsidized Housing (Section 8 and Similar)

In the Housing Choice Voucher program and similar subsidized tenancies, a late fee generally applies only to the tenant’s own share of the rent, not to the portion the housing authority pays, and the program contract or lease rider may cap or bar the fee entirely. A landlord who accepts a voucher agrees to the program’s terms for the term of the contract, so the program rules ride on top of state law. The section 47a-15a grace period and cap still apply, but they apply within the narrower band the program allows.

Weekly Tenancies

Connecticut treats week-to-week tenancies differently from monthly ones on the very first question, the grace period. A weekly tenant has only a four-day grace period under section 47a-15a, not the nine-day period that a monthly tenant enjoys. The cap on the fee itself is the same lesser-of formula, but the shorter grace period means a fee can attach sooner in a weekly tenancy. A landlord and a weekly tenant should both key off the four-day figure rather than assuming the more common nine-day window applies.

Takeaway

Mobile-home parks follow Chapter 412 rather than the ordinary apartment rules, subsidized tenancies limit a late fee to the tenant’s share and may bar it, and weekly tenancies get the shorter four-day grace period. The section 47a-15a cap still applies, but these categories layer their own timing on top of it.

Local Ordinances and Fair-Rent Commissions

Connecticut’s late-fee cap and grace period are set at the state level and apply statewide, so unlike states where a city can impose its own numeric cap, the core rule is the same in every Connecticut town. What varies locally is the machinery for resolving rent disputes. Many Connecticut municipalities have a fair rent commission, and a 2022 state law expanded the requirement so that larger towns must establish one. These commissions focus mainly on unfair or excessive rent, but a tenant facing an improper charge may find a local commission a useful forum to raise the problem.

Because the statutory cap is uniform, the practical local step in Connecticut is less about hunting for a stricter city ordinance and more about knowing which local body handles disputes. A tenant should check whether the town has a fair rent commission and what it covers, while both sides should remember that the section 47a-15a grace period and cap already provide firm, statewide protection that does not depend on where in Connecticut the property sits.

The cap is statewide; the dispute forum may be local

Do not expect a Connecticut city to set a different late-fee cap the way some cities do in other states. The section 47a-15a grace period and cap apply across Connecticut. What may differ locally is whether the town has a fair rent commission or similar body to hear a dispute. Confirm the statewide rule first, then check the local forum for resolving a disagreement about a charge.

Takeaway

Connecticut’s grace period and cap are statewide, so a city generally cannot set its own numeric late-fee cap. What varies locally is the fair rent commission and similar dispute forums, which larger towns must now maintain. Confirm the statewide rule, then check the local body for resolving a dispute.

How a Tenant Contests an Unlawful or Excessive Late Fee

Because Connecticut fixes both a grace period and a cap, a tenant challenging a late fee has firm, objective ground to stand on. The tenant does not have to argue about what is reasonable; the tenant can point to the statute and show the fee was charged too early or set too high. That certainty shapes every step below.

Steps a Connecticut Tenant Can Take Against a Bad Late Fee

Read the lease first

Confirm whether the lease actually provides for a late fee. If the lease is silent, there is no enforceable late fee under section 47a-15a, and the tenant can say so in writing.

Check the grace period

Confirm the fee was charged only after nine days for a monthly tenancy, or four days for a weekly one. A fee assessed within the grace period is unlawful, and a clause charging early is void under section 47a-4.

Check the amount against the cap

Compare the fee to the lesser of five dollars per day up to fifty dollars, or five per cent of the delinquent rent. Anything above that ceiling exceeds the section 47a-15a cap and is not owed.

Ask the landlord to correct or remove it

In writing, ask the landlord to drop any fee charged early or above the cap, citing section 47a-15a and the void-clause rule of section 47a-4. Keep a copy of the request.

Dispute a deposit deduction or use small claims

If an unlawful late fee was taken from the deposit, challenge it in the deposit accounting, and sue in small claims court to recover an overcharge. Keep written records of every payment and demand.

Takeaway

A Connecticut tenant contesting a late fee can point to objective statutory rules rather than argue reasonableness. Read the lease, check the fee against the grace period and the cap, ask the landlord in writing to correct any early or excessive fee, and use the deposit dispute or small claims to recover an overcharge.

The Connecticut Landlord and Tenant Playbook

Connecticut’s fixed rules reward discipline on both sides. For landlords, a fee charged after the grace period and within the cap holds up cleanly; for tenants, knowing the grace period and the cap keeps you from paying money you do not owe.

How to Handle a Late Fee the Compliant Way in Connecticut

Put a statute-tracking clause in the lease

Landlords: state the late fee clearly in the written lease, and draft it to charge only after the grace period and only up to the lesser of the two statutory figures. A clause that charges early or above the cap is void under section 47a-4.

Wait out the grace period every time

Do not assess a fee until nine days have passed for a monthly tenancy, or four days for a weekly one. No fee accrues during the grace period, so charging within it is unlawful regardless of the lease.

Compare both cap figures before charging

Compute five per cent of the delinquent rent and compare it to five dollars per day up to fifty dollars. Charge no more than the lesser figure, and never more than fifty dollars in total.

Keep the fee out of the nonpayment demand

A nonpayment notice to quit under section 47a-23 is about rent. Keep the base rent figure clean and pursue any valid late fee separately, through small claims or the deposit if the lease allows.

Tenants: verify before you pay

Check that the fee is in the lease, was charged after the grace period, and does not exceed the cap. Watch for mobile-home, subsidized, and weekly-tenancy rules, and dispute in writing anything charged early or above the ceiling.

Need the eviction notice itself?

If a tenant is genuinely behind on rent after the grace period, the correct tool is a rent-focused notice to quit, not a late-fee demand. See our Connecticut eviction notice laws guide for the full summary-process sequence. Wait out the grace period, keep the demand focused on the actual rent, and pursue any valid late fee separately. Always verify current law before serving.

Compliant Versus Unlawful: Common Scenarios

✓ Usually Compliant

  • Fee after the grace period. A late fee assessed only after nine days for a monthly tenancy, or four for a weekly one, written into the lease.
  • Fee within the cap. A charge held to the lesser of five dollars per day up to fifty dollars, or five per cent of the delinquent rent, compared each time.
  • Fee collected separately. A valid late fee pursued in small claims or deducted from the deposit where the lease allows — not driving the nonpayment case.
  • Rent-focused notice to quit. A nonpayment notice under section 47a-23 keyed to the actual rent owed, with any late fee kept out of it.

✕ Likely Unlawful

  • Fee charged during the grace period. A late fee assessed before the nine or four days pass — unlawful, and the clause authorizing it is void under section 47a-4.
  • Fee above the cap. A charge exceeding the lesser of five dollars per day up to fifty dollars, or five per cent of the delinquent rent.
  • Fee not in the lease. A late fee the written lease never mentions, or one raised mid-tenancy without a proper agreement.
  • Bad-check damages on rent. Trying to claim section 52-565a civil damages for a bounced rent check, which the statute excludes.

The Best Late Payment Is the One That Never Happens

Most late-rent and bounced-check problems trace back to a tenant whose payment history showed red flags before move-in. Comprehensive credit, income, and eviction-history reports surface prior payment problems before you ever sign a lease.

Frequently Asked Questions

Is there a legal limit on late fees in Connecticut?

Yes. Unlike states that leave late fees to an open reasonableness test, Connecticut sets a hard statutory cap. Under Connecticut General Statutes section 47a-15a, a late charge may not exceed the lesser of five dollars per day, up to a maximum of fifty dollars, or five per cent of the delinquent rent payment. Whichever of those two figures is smaller is the ceiling. The fee also cannot be charged at all until the rent is past the mandatory grace period, and it must be set out in a valid written lease. So the honest answer is that Connecticut has a real, concrete cap, not just a reasonableness standard. Always verify the current statute before charging or paying a fee.

Does Connecticut have a grace period for late rent?

Yes, and it is set by statute, not just by the lease. Under Connecticut General Statutes section 47a-15a, rent is within its grace period for nine days after it is due in a monthly tenancy, and for four days after it is due in a one-week tenancy. A landlord may not assess a late fee, or begin the nonpayment termination process, until that grace period has passed. This is a genuine statutory cushion that Connecticut law guarantees to residential tenants, so a landlord cannot treat rent as instantly subject to a fee the day after it is due. Verify the nine-day and four-day figures for your tenancy type.

How much can a Connecticut landlord charge as a late fee?

No more than the lesser of two numbers under Connecticut General Statutes section 47a-15a: five dollars per day, up to a maximum of fifty dollars, or five per cent of the delinquent rent payment. For example, on delinquent rent of eight hundred dollars, five per cent is forty dollars, which is less than the fifty-dollar day-rate maximum, so the cap is forty dollars. On delinquent rent of two thousand dollars, five per cent would be one hundred dollars, but the fifty-dollar maximum controls, so the cap is fifty dollars. The landlord must also have waited out the grace period and must have a valid written late-fee clause in the lease. A fee above this cap is not enforceable.

Does a late fee have to be in the written lease in Connecticut?

Yes. Under Connecticut General Statutes section 47a-15a, a landlord may assess a late charge only where the rental agreement contains a valid written agreement to pay one in accordance with section 47a-4. If the lease is silent on late fees, there is no late fee to collect. Section 47a-4 goes further: a lease provision by which the tenant agrees to pay a late charge before the grace period expires, or to pay a late charge above the section 47a-15a cap, is void and unenforceable. So the clause must exist, must not trigger before the grace period, and must not exceed the cap. A lease clause is necessary, and it must also comply with the statute.

What is the returned-check or NSF rule in Connecticut for rent?

This is a Connecticut-specific point that surprises many landlords. Connecticut General Statutes section 52-565a, the bad-check civil-damages statute, expressly excludes a check given as payment for the rental of residential premises. That means the statute’s civil damages, up to seven hundred fifty dollars for a check drawn on no account or up to four hundred dollars for insufficient funds, are not available to a residential landlord for a bounced rent check. The statute does allow a service charge on the drawer of up to twenty dollars. A landlord may still recover the amount of the check as an ordinary debt and may charge a returned-check fee that the lease provides, but the special bad-check damages simply do not reach residential rent.

Can a landlord include a late fee in a Connecticut notice to quit?

A Connecticut nonpayment eviction begins only after the grace period has run, and then the landlord serves a notice to quit under Connecticut General Statutes section 47a-23 giving at least three days. What must be paid to stop a nonpayment eviction is the rent. A late fee is a separate contractual charge, not rent, and a tenant who has paid all base rent owed generally cannot lose the home over an unpaid late fee alone. Because overstating or confusing the amount owed can undermine a summary-process case, the safe practice is to keep the base rent clear and pursue any valid late fee as a separate matter. Do not let a small late fee complicate a nonpayment case.

Can unpaid late fees lead to eviction in Connecticut?

Not on their own. A Connecticut nonpayment eviction turns on unpaid rent after the nine-day grace period, followed by a notice to quit under Connecticut General Statutes section 47a-23. A late fee is not rent; it is a separate charge capped by section 47a-15a. A tenant who has paid the actual rent owed does not lose the home merely for declining to pay a disputed late fee. A landlord may pursue an unpaid, valid late fee as an ordinary contract debt, for example in small claims court or from the security deposit if the lease allows and the fee is valid, but the fast summary-process machinery is for rent, not for a late charge standing alone.

Is a five-percent late fee legal in Connecticut?

Five per cent of the delinquent rent is one of the two ceilings the statute names, so a fee set at five per cent is legal only when that figure is the lesser of the two. Connecticut General Statutes section 47a-15a caps the fee at the lesser of five dollars per day up to a maximum of fifty dollars, or five per cent of the delinquent rent payment. On lower rents, five per cent may be the smaller number and therefore the cap. On higher rents, the fifty-dollar maximum is smaller and controls, so a flat five per cent could exceed the legal ceiling. A landlord should always compare both figures for the specific delinquent amount and charge no more than the lower one.

When can a Connecticut landlord first charge a late fee?

Only after the statutory grace period has passed. Under Connecticut General Statutes section 47a-15a, that is nine days after the rent is due for a monthly tenancy and four days after it is due for a one-week tenancy. A late fee assessed on any day within the grace period is unlawful, and a lease clause that purports to charge one earlier is void under section 47a-4. Once the grace period ends and the rent is still unpaid, the landlord may assess a late charge, provided the lease contains a valid late-fee clause and the amount does not exceed the statutory cap. The grace period is the trigger; do not charge before it expires.

How does a Connecticut tenant fight an unlawful or excessive late fee?

Because Connecticut sets a clear statutory cap and grace period, a tenant challenging a fee has firm ground. Start by checking whether the lease actually provides for a late fee. Then confirm the fee was charged only after the nine-day grace period and does not exceed the lesser of five dollars per day up to fifty dollars, or five per cent of the delinquent rent, under section 47a-15a. In writing, ask the landlord to correct or drop any fee charged early or above the cap, since such a clause is void under section 47a-4. Dispute a wrongful deposit deduction, sue in small claims court to recover an overcharge, and keep written records of every payment and demand.

Are late fees different for mobile-home parks in Connecticut?

Yes. A resident who owns a mobile manufactured home and rents a lot in a licensed park is governed by Chapter 412 of the Connecticut General Statutes, not the ordinary apartment framework in Chapter 830. Chapter 412 sets its own nonpayment and summary-process rules for park residents, including how and when a park owner may act on unpaid lot rent under section 21-80. A park owner cannot simply import an apartment-style late-fee practice; the mobile-home statute controls the timing and process for that tenancy. A park resident should read the lot rental agreement against Chapter 412 rather than assuming the general residential rules apply unchanged.

Can a Connecticut landlord charge a daily late fee?

Only within the statutory ceiling. Connecticut General Statutes section 47a-15a expressly frames one of the two caps as five dollars per day, but it bounds that day-rate at a maximum of fifty dollars, and it is only lawful when five dollars per day is the lesser figure compared with five per cent of the delinquent rent. So a daily fee cannot run indefinitely, cannot exceed fifty dollars in total, and cannot exceed five per cent of the delinquent rent where that percentage is smaller. And no daily fee may accrue during the grace period at all. A landlord using a per-day charge must stop at the fifty-dollar cap and confirm it is still the lesser of the two figures.

What is the safest way for a Connecticut landlord to charge a late fee?

Put a clear late-fee clause in the written lease that tracks the statute, then wait out the grace period, nine days for a monthly tenancy or four days for a one-week tenancy, before assessing anything. Charge no more than the lesser of five dollars per day up to a maximum of fifty dollars, or five per cent of the delinquent rent payment, and compare both figures for the actual delinquent amount each time. Never charge a fee before the grace period ends, because that clause is void under section 47a-4. Keep the late fee separate from any nonpayment notice to quit, watch for mobile-home and subsidized-housing rules, and verify the current statute before charging.

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Disclaimer: This guide provides general information about Connecticut late rent fee law, including Connecticut General Statutes section 47a-15a (nonpayment of rent, grace period and late charges), section 47a-4 (prohibited lease provisions), section 52-565a (dishonored checks, which excludes residential rent), section 47a-23 (notice to quit), and Chapter 412 (mobile manufactured home parks), and is not legal advice. Late-fee and grace-period rules are amended over time, and local fair rent commissions may affect how disputes are resolved. For a specific situation, verify the current law and consult a licensed Connecticut attorney before charging, paying, or disputing a late fee. See our editorial standards for how we research and review this content.