These calculators run entirely in your browser. Nothing you type is sent anywhere, stored, or logged. With JavaScript turned off the explanation below still works — the arithmetic is all shown.
What can a landlord charge for late rent?
Residential rent is governed by landlord-tenant law, which is a completely separate body of law from the rules on commercial invoices. Several states cap the fee outright and set a mandatory grace period.
Fee as a share of rent
—
Enter the rent and the fee you were charged.
Residential rent is a different body of law from commercial invoicing
Say this plainly, because much published guidance gets it backwards: residential rent late fees and business invoice late fees are separate bodies of law, and neither is authority for the other.
Residential tenancy is deliberately and heavily regulated: mandatory grace periods, statutory caps, notice requirements, anti-retaliation protections, all because residential tenants are a protected class. Commercial invoicing has none of that. A late charge between two businesses is governed by ordinary contract law — the liquidated-damages and penalty doctrines — and in most states no statute caps it.
The error is common and runs in one direction. A widely republished 50-state “late fee laws” guide, circulated by accounts-receivable software vendors, cites Colo. Rev. Stat. § 38-12-105, Me. Rev. Stat. tit. 14 § 6028 and Nev. Rev. Stat. § 118A.210 as caps on business invoice late fees. All three sit in residential tenancy chapters and govern what a landlord may charge a tenant. If you have read that a business may not charge more than five percent, or must wait seven days, that is where the number came from, and it does not apply.
The reverse error is just as costly: a landlord applying the 1.5 percent per month invoicing convention to residential rent may be well over the cap in their state. If your question is about a commercial invoice, the invoice late fee calculator is the right page. This one covers residential tenancies only, and is general information rather than legal advice.
How statutory caps and grace periods work
States that regulate residential late fees generally use two levers: a grace period, before which no fee may be charged, and a cap on the amount, set as a percentage of rent, a dollar figure, or the greater or lesser of the two. Three verified examples:
| State | Grace period | Cap on the fee | Citation |
|---|---|---|---|
| Colorado | Rent must be at least seven calendar days late | The greater of $50 or 5 percent of the past due rent payment | Colo. Rev. Stat. § 38-12-105 |
| Maine | Rent is not late until 15 days after it is due | 4 percent of the amount due for one month | Me. Rev. Stat. tit. 14, § 6028 |
| Nevada | At least three calendar days after rent is due, for tenancies longer than week to week | 5 percent of the periodic rent | Nev. Rev. Stat. § 118A.210 |
Read the qualifiers; they carry as much weight as the percentages. Colorado's provision covers mobile home owners as well as tenants. Maine also requires that the landlord gave the tenant written notice at the time of the rental agreement that such a penalty might be charged — a fee never disclosed at signing fails on that ground whatever its size. Nevada adds that the maximum must not be increased on the basis of a fee previously imposed, foreclosing the escalating structures some leases use.
Other states use different machinery: some regulate timing only, some cap in flat dollars per day, some make an excessive charge unenforceable rather than unlawful. The state reference page keeps residential provisions in their own fields, with their own citations.
States with no confirmed statutory cap
Where no cap is shown for your state, that means one of two things, and they are not the same.
Either the state genuinely does not set one. California has no statewide statutory cap on residential late fees. A late charge in a California residential lease is instead tested as liquidated damages under Cal. Civ. Code § 1671(d), the consumer-contract standard, under which the clause is void unless fixing the actual damage was impracticable or extremely difficult. That is not necessarily weaker than a percentage cap; it asks what the late payment actually cost the landlord rather than what fraction of rent the fee represents.
Or the figure could not be verified from a primary source, in which case nothing is shown rather than a plausible number. Delaware is the honest example: its provision sits at Del. Code Ann. tit. 25, § 5501 and is widely reported to cap the charge and require a grace period, but the text could not be retrieved for this build, so no figure is asserted.
Two things apply everywhere regardless. The penalty doctrine: a charge grossly disproportionate to the harm the late payment causes is vulnerable as an unenforceable penalty, cap or no cap. And local ordinances: cities and counties impose their own limits, and in states without a statewide rule that is often where the operative one lives.
If you think a fee you have been charged is too high
Work through this in order. The step that protects you most is not the one most people start with.
- Pay the rent itself if you possibly can. In most places a disputed late fee is not a defence to non-payment of rent, and withholding can put the tenancy at risk. Dispute the fee; pay the rent.
- Read the lease: the late-fee clause, the stated amount, the grace period, and whether the fee was disclosed when you signed. Several states condition the fee on that disclosure.
- Check the statute for your state, then your city. Compare the grace period first — a fee charged before it expires is invalid on timing alone. Then compare the amount, and check what the percentage is calculated on.
- Put it in writing to the landlord or agent, quoting the provision and the figures, and ask for the charge to be removed. Many disputes end here, because managers apply one standard fee across a portfolio without checking each state.
- Get advice before escalating. A local legal aid organisation, tenants' service or city housing agency will know the local rules. Some states attach specific remedies to a wrongful charge — Texas provides a $100 penalty, three times the fee wrongfully collected and attorney's fees under Tex. Prop. Code Ann. § 92.019 — but remedies vary, and this is where general information stops being useful.
Retaliation protections exist in many states but their scope differs, so take advice rather than assuming you are covered. Keep everything in writing; the paper trail makes the argument later.
If you are the landlord
What makes a residential late fee enforceable is mostly procedural, and the procedure is cheap next to the cost of error.
- Put it in the written lease, in full, at signing: the amount, the day it applies from, whether it recurs. Several states make prior written notice an express condition — Maine among them — and a fee introduced mid-tenancy is on weak ground.
- Check the statutory grace period before charging, every time. Charging on day two in a state requiring seven days is a violation regardless of amount, and it is the most common error.
- Check the cap against the right base. Statutes differ on what the percentage applies to — the past due amount, one month's rent, the periodic rent — and some exclude deposits and utilities. The wrong base pushes a compliant-looking percentage over the line.
- Charge once per late payment unless the statute clearly allows otherwise, and do not escalate because a previous fee went unpaid — Nevada expressly forbids increasing the maximum on that basis.
- Apply it uniformly, and check the city as well as the state. Selective enforcement invites a penalty argument and a discrimination complaint; local ordinances can be stricter, and they govern.
And do not carry these numbers into a commercial contract; they have no application to an invoice between businesses. Where a tenancy or a real sum is at stake, take advice from a lawyer or housing service in your jurisdiction.
Frequently asked questions
Is there a legal maximum late fee for rent?
It depends entirely on the state, and in some places the city. Several states set explicit caps: Colorado allows the greater of $50 or 5 percent of the past due rent, and only once rent is at least seven calendar days late; Maine caps the penalty at 4 percent of one month's rent and does not treat rent as late until 15 days after it is due; Nevada caps it at 5 percent of the periodic rent, with a minimum three-day wait for tenancies longer than week to week. Other states regulate the timing but not the amount, and some set no statutory cap at all.
My state has no cap. Can the landlord charge anything?
No. Two constraints apply even without a statutory cap. The first is the penalty doctrine: a charge grossly disproportionate to the harm the late payment actually caused is vulnerable as an unenforceable penalty. California codifies a version of this for residential leases at Cal. Civ. Code § 1671(d), under which a late charge is void unless fixing the actual damage was impracticable or extremely difficult. The second is local law — cities and counties set their own limits, and in states with no statewide rule that is often where the real constraint sits. Check the municipal code, not just the state code.
Can I withhold rent because I think the late fee is wrong?
That is a risky way to make the point. In most places a disputed late fee is not a defence to non-payment of rent, and withholding can expose you to eviction proceedings over the rent itself — a much larger problem than the fee. The safer sequence is to pay the rent, dispute the fee separately in writing, quote the lease clause and the statutory provision you are relying on, and keep copies of everything. If the landlord will not correct it, a local legal aid organisation or tenants' service can tell you what remedies your state actually provides.
Do the rules for business invoices apply to rent?
No, and the confusion between the two is the single biggest source of bad guidance on this subject. Residential tenancy law is a separate, heavily regulated field with mandatory grace periods, statutory caps and notice requirements. Commercial invoicing is governed by ordinary contract law, and in most states no statute caps a late fee at all. Guidance citing Colorado's, Maine's or Nevada's residential provisions as limits on business invoice late fees is misreading residential statutes; those provisions govern landlords and tenants and nothing else. Do not carry a residential cap into a commercial contract, or a commercial convention into a lease.