Massachusetts late fee laws cap what lenders, credit issuers, and landlords can charge for a missed payment, and each category has its own rule. Mortgage late fees on residential loans of four units or fewer are capped at 3% of overdue principal and interest after a 15-day grace period. Late fees on open-end credit like store cards and revolving accounts are limited to the lesser of 10% of the outstanding balance or $10, also after a 15-day grace. Landlords cannot charge any late fee on rent until the payment is at least 30 days overdue. On top of these category-specific caps, Chapter 93A, the state consumer protection statute, lets you challenge any late fee that is excessive, hidden, or otherwise unfair, with damages that can run to two or three times your loss plus attorney’s fees.
Mortgage Late Fees
Chapter 183, Section 59 governs late charges on residential mortgages secured by properties with four or fewer units, including condominiums. A lender cannot charge a late fee at all unless the loan documents specifically authorize one. When the documents do authorize a fee, you get a 15-day grace period from the due date before it can be assessed. Bi-weekly mortgage payments get a shorter 10-day grace.
The maximum charge is 3% of the overdue principal and interest. Any portion of your payment set aside for estimated taxes is excluded from that calculation, which brings the fee down further.
The statute also blocks fee stacking. Only one late fee can be charged per missed payment. If a lender deducts a late fee from a payment and that deduction creates a shortfall on the next payment, no additional late fee can be tacked on for that resulting default. One missed payment cannot legally snowball into a series of penalties.
According to the Massachusetts Division of Banks, these limits apply regardless of who your lender is. Because Section 59 refers to the mortgage note itself rather than the type of lender, the Division has taken the position that Section 59 binds all lenders operating in the state, including federally chartered and out-of-state banks making first mortgage loans in Massachusetts. (See the national bank note below for a competing federal view.)
Credit Card and Open-End Credit Late Fees
Late fees on open-end credit plans, including store credit cards and revolving credit lines, are governed by Chapter 140, Section 114B. The cap is lower than most consumers expect: the fee cannot exceed 10% of the outstanding balance or $10, whichever is less. On a $500 balance, the maximum late fee is $10. On a $50 balance, it’s $5.
No late fee can be charged on a payment made within 15 days of its due date. Before a creditor can start charging late fees at all, it has to send you at least 30 days’ advance written notice disclosing the new fee and its terms.
Section 114B also caps interest on open-end credit at 18% per year unless another statute says otherwise. One thing the cap does not cover: if your credit card agreement raises your interest rate after a missed payment, the Division of Banks has said that rate increase is not a “delinquency charge” under Section 114B, and it’s evaluated separately.
Rent Late Fees
Massachusetts protects tenants more strictly than most states. Under Chapter 186, Section 15B, a landlord cannot charge a late fee on any rent payment that is less than 30 days overdue. A lease provision demanding a late fee before the 30-day mark is an illegal lease term.
If your rent is due on the first of the month, no penalty can be imposed until the first of the following month. The Attorney General’s guide to landlord and tenant rights confirms this, listing any attempt to charge a late fee on rent less than 30 days overdue as an unlawful lease provision.
Even past 30 days, the fee has to be reasonable. A landlord who charges an amount that functions as a penalty rather than compensation for actual costs of the delay can be challenged under Chapter 93A.
When a Late Fee Within the Cap Can Still Be Illegal
Chapter 93A, the state’s Consumer Protection Act, prohibits “unfair or deceptive acts or practices” in trade or commerce. It sets no specific dollar cap on late fees. Instead, it creates a reasonableness standard that applies on top of the industry-specific rules and can reach fees that technically fit within a statute.
To survive a 93A challenge, a late fee generally needs to be proportional to the creditor’s actual costs from the delayed payment. A fee that bears no relationship to those costs starts to look like a penalty, and Massachusetts courts have consistently treated penalty-style charges as problematic.
Disclosure matters too. A business that buries late fee terms in fine print, or fails to disclose them before the transaction, is more vulnerable to a 93A claim. Clear, upfront disclosure of the fee amount and what triggers it is the baseline expectation.
What You Can Recover If You’re Overcharged
Under Chapter 93A, Section 9, a consumer who wins a lawsuit over an unfair or deceptive late fee is awarded actual damages or $25, whichever is greater. That $25 floor matters because it lets you recover even when the harm is hard to quantify in dollars. In Leardi v. Brown, the Massachusetts Supreme Judicial Court held that where a legally protected interest has been invaded but actual damages are difficult to measure, the statute guarantees minimum damages of $25.
The bigger recoveries come from willful violations. If the court finds the business knowingly violated Section 2 of Chapter 93A, or refused in bad faith to settle after receiving a demand letter, damages jump to between two and three times the actual amount. The court also awards reasonable attorney’s fees and costs, which in smaller cases often exceed the underlying damages.
The Attorney General has independent enforcement power under Section 4. The AG can seek injunctions and orders requiring the business to return money to affected consumers, and for knowing violations, courts can impose civil penalties of up to $5,000 per violation. Violating an existing injunction doubles that to $10,000 per violation. Because penalties apply per violation, a business with a pattern of improper late fees across many customers faces exposure that adds up quickly.
How to Challenge a Late Fee
Send a 30-Day Demand Letter
Before filing a lawsuit under Chapter 93A, you have to send the business a written demand letter at least 30 days before filing. The letter must identify you, describe the unfair or deceptive practice, explain your injury, and state the relief you’re demanding, including a specific dollar amount.
The letter exists to encourage settlement. If the business responds with a reasonable written settlement offer and you reject it, the business can later cap your recovery at the amount it offered. If it ignores the letter or responds inadequately, you can proceed to court with the possibility of treble damages on the table.
File a Complaint With the Attorney General
You can file a complaint directly with the Attorney General’s Consumer Advocacy and Response Division (CARD). The office uses complaints both to help individual consumers and to identify patterns worth a broader enforcement action. Filing does not require a lawyer and can be done online through the AG’s website.
File a Federal Complaint for Financial Institutions
For late fees charged by banks, credit card companies, or other financial institutions, you can file a complaint through the Consumer Financial Protection Bureau. Companies are expected to provide an initial response within 15 calendar days. If that response is not final, the company has up to 60 days to follow up. Complaints are published in the CFPB’s public database once the company responds or 15 days pass, whichever comes first.
National Banks and Federal Preemption
One boundary worth knowing: national banks and federal savings associations may not be bound by the Massachusetts caps described above. Federal regulations implementing the National Bank Act treat “interest” as including late fees connected to credit, and national banks can charge interest at the maximum rate permitted by the law of their home state. The Office of the Comptroller of the Currency applies preemption principles derived from the U.S. Constitution when deciding whether state fee limits reach national banks.
In practice, a national bank issuing credit cards or making loans in Massachusetts may legally charge late fees higher than the state caps. Whether preemption applies depends on the specific charge, the type of loan, and how the OCC has interpreted the relevant federal rules. If you’re dealing with a bank, check whether it is state-chartered or federally chartered before assuming the Massachusetts caps apply, because that distinction can determine which rules govern your fee.