Maryland Late Fee Calculator

5% most a lease may charge as a late fee
Rent limit
5% of the overdue rent
Earliest fee day
Not set by this rule
Statute
Md. Code, Real Prop. § 8-208(d)(3)
Checked
What was not paid on time. Copies the rent until you type here.
How the lease sets the late fee
Pre-filled with the Maryland limit; type the figure from your lease.
How many days the lease gives before a late fee; 0 if none.

Your late fee

$62.50

At the legal limit

Paid 12 days late; the lease has no grace period.

The lease asks for $62.50, exactly the most Md. Code, Real Prop. § 8-208(d)(3) permits on these figures.

Days past due
12 days
Grace period ends
No grace period
Earliest fee date
October 20, 2026
Lease late fee
5% of $1,250.00 = $62.50
Legal maximum
$62.50
Rent + late fee
$1,312.50

Limit set by Maryland (5% of the overdue rent): $62.50

5% × $1,250.00 overdue rent = $62.50

Maryland names no earliest day for a late fee in the quoted law; the earliest fee date above follows the lease's grace days.

Late rent notice builder

Who it is from and to
Amounts
Taken from the calculator. Set 0 if the rent itself is paid.
Taken from the result; you may change it.
Adds the two above until you type your own figure.
Blank: the letter asks for payment at the earliest opportunity.
Payment and contact
Where and how the tenant can pay.
Late rent notice

[Your name or company]

Date: October 31, 2026

To: [Tenant name]

[Rental property address]

Re: Overdue rent for [Rental property address]

Dear [Tenant name],

This letter is a reminder that the rent of $1,250.00 for [Rental property address] was due on October 19, 2026. As of October 31, 2026, $1,250.00 of it is still unpaid (12 days past due).

Your lease provides for a late charge, which comes to $62.50.

Amount now due

Unpaid rent
$1,250.00
Late charge
$62.50
Total
$1,312.50

Please pay $1,312.50 at your earliest opportunity.

If this letter crossed with your payment, please disregard it.

Regards,

[Your name or company]

6% legal default rate (contract silent)
Max written B2B rate
8% with a signed written agreement — but loans to corporations and commercial loans over $15,000 (unsecured by a residence) or $75,000 (secured) carry any agreed rate.
Cap regime
Hard cap — 6% (8% with signed agreement)
Statute
Md. Const. art. III, § 57; Com. Law §§ 12-102, 12-103
Verified
— how we verify · changelog

Constitutional legal rate; recoverable as of right on liquidated sums from the date payment was due.

Pre-filled with Maryland's statutory default (6%), which governs only when the contract names no rate; a rate stated in your contract replaces it.

Interest at 6% a year

Interest owed on an overdue invoice in Maryland at 6% per year
Invoice amount30 days late60 days late90 days late
$1,000.00$4.93$9.86$14.79
$5,000.00$24.66$49.32$73.97
$10,000.00$49.32$98.63$147.95

Maximum late fee in Maryland — written B2B contracts

Hard cap 6% (8% with signed agreement).

Basis: Md. Const. art. III §57; Com. Law §12-103(e).

About this page

Maryland rent late fee law

Maryland: a lease clause may not charge more than 5% of the unpaid rent due for the late rental period; weekly-rent leases have their own limit in the statute, $3 a week, with a $12 monthly total.

(d) A landlord may not use a lease or form of lease containing any provision that: [...] (3) (i) Provides for a penalty for the late payment of rent in excess of 5% of the amount of unpaid rent due for the rental period for which the payment was delinquent; or (ii) In the case of leases under which the rent is paid in weekly rental installments, provides for a late penalty of more than $3 per week or a total of no more than $12 per month;
— Md. Code, Real Prop. § 8-208(d)(3). Read it at the official source · checked .

Before you send the late rent notice: it is a reminder letter about overdue rent and a late charge, not an eviction notice. A notice to pay rent or quit is a separate document, and Maryland has its own rules for it. Nothing on this page is legal advice.

What Maryland law says about invoice interest

The Legal Rate of Interest shall be Six per cent per annum, unless otherwise provided by the General Assembly.
— Md. Const. art. III, § 57. Read it at the official source · row verified 2026-08-19.

6% binds an ordinary unpaid invoice (8% only with a signed loan agreement). Corp-loan and $15,000+ commercial-loan exemptions apply only to actual loans — a trade invoice is not a loan.

(a) (1) Except as provided in subsections (b), (c), (d), (e), and (f) of this section, a lender may charge interest at an effective rate of simple interest not in excess of 8 percent per year on the unpaid principal balance of a loan if there is a written agreement signed by the borrower which sets forth the stated rate of interest charged by the lender. [...] (e) (1) A lender may charge interest at any rate if the loan is: (i) A loan made to a corporation; (ii) A commercial loan in excess of $15,000 not secured by residential real property; or (iii) A commercial loan in excess of $75,000 secured by residential real property.
— Md. Code, Com. Law § 12-103(a)(1), (e)(1). Read it at the official source · verified .

Not legal advice. Figures were last verified on the date shown; check the cited statute before charging a late fee.