Massachusetts Landlord-Tenant Laws (2026): Deposits, Notice, and Tenant Rights

Massachusetts landlords may collect a security deposit of no more than 1 month's rent (plus a separate last month's rent payment), must return it within 30 days of move-out, and must hold it in an interest-bearing account. Massachusetts sets no fixed advance-notice period for entry; instead, M.G.L. c. 186, Section 15B(1)(a) limits the purposes for which a lease may let a landlord in.

Security deposits in Massachusetts

Massachusetts law (M.G.L. c. 186, Section 15B) caps the security deposit at one month's rent. A landlord may separately collect rent for the first full month, rent for the last full month, and the purchase and installation cost of a key and lock, but cannot combine these into a supersized security deposit. An amendment effective August 1, 2025 extended that list to cover the landlord's agent: a tenant or prospective tenant cannot be required to pay any amount outside the list to the lessor or to an agent of the lessor, which is the change that moved the landlord's broker fee off the tenant. The same amendment permits a regulated, optional fee in lieu of a security deposit, capped at one month's rent, which a tenant may always decline in favor of paying a standard security deposit.

The deposit must be deposited in a separate, interest-bearing bank account in Massachusetts within 30 days of receipt. The landlord must give the tenant a written receipt and the name and address of the bank. Interest is owed at 5 percent per year, or the lesser amount of interest actually received from the bank where the deposit is held, and is payable to the tenant annually or at move-out. The same lesser-of rule applies to interest on prepaid last month's rent.

Allowed deductions from the deposit include unpaid rent and documented damage beyond normal wear and tear. The landlord must provide an itemized list of deductions and receipts or repair estimates within the 30-day window. Missing that itemized statement costs the landlord the right to retain any part of the deposit, but it does not by itself trigger triple damages. Section 15B(7) reserves treble damages, plus 5 percent interest and attorney's fees, for three specific failures: not holding the deposit in a proper separate account, not transferring it to the new owner when the property is sold, and not returning it within 30 days after the tenancy ends.

When can a landlord enter? Notice rules

Massachusetts does not set a fixed minimum notice period for landlord entry the way California (24 hours) or Arizona (48 hours) do. What the statute does instead is limit the purposes entry may be for. Under M.G.L. c. 186, Section 15B(1)(a), a residential lease may not give the landlord a right to enter before the tenancy ends except to inspect the premises, to make repairs, or to show the unit to a prospective tenant, purchaser, mortgagee, or lessee. The same provision separately allows entry in accordance with a court order, where the premises appear to have been abandoned, or to inspect within the last 30 days of the tenancy, or after either party gives notice terminating it, to determine the amount of damage to be deducted from the deposit.

Advance arrangement at a reasonable time is the practical standard, and 24 hours is a common benchmark written into leases, but it is a norm rather than a statutory minimum. A landlord who enters without advance arrangement or consent, or for a purpose outside that list, may face a claim of harassment or breach of the covenant of quiet enjoyment.

Section 15B contains no emergency-entry exception; the carve-outs it lists are a court order, apparent abandonment, and the last-30-days damage inspection. A landlord dealing with a burst pipe or an active fire risk is responding to an emergency the statute does not address, so treat emergency entry as a practical reality rather than a right Section 15B grants. Entry should otherwise occur at a reasonable hour. Tenants who believe a landlord is entering repeatedly without notice can contact the Massachusetts Attorney General's Consumer Protection Division or seek a court order.

Ending a lease: notice to vacate

The default rule for ending a tenancy at will in Massachusetts is three months' written notice from either side, under M.G.L. c. 186, Section 12. The shorter notice most people actually use is an exception to that default: where the rent is payable at intervals of less than three months, notice is sufficient if it equals the interval between the days of payment or 30 days, whichever is longer. A standard month-to-month tenancy with rent due on the first therefore takes 30 days' notice, while a tenancy whose rent interval is three months or more falls back to the three-month rule.

Notice should be timed so that it expires at the end of a rental period. For example, if rent is due on the first and a tenant wants to vacate on April 30, notice should be delivered no later than April 1.

For fixed-term leases, no termination notice is needed since the lease ends on the agreed date, though many landlords send a reminder. For nonpayment of rent or lease violations, Massachusetts uses a specific notice process before eviction. See the Massachusetts eviction notice page for the required 14-day notice to quit and the summary process procedure, or visit the eviction notice hub for an overview.

Repairs and the warranty of habitability

Every residential rental in Massachusetts carries an implied warranty of habitability rooted in the State Sanitary Code (105 C.M.R. 410). The code sets minimum standards for heat (at least 68 degrees Fahrenheit from September 16 to June 14), hot water, structural safety, working plumbing, and pest control. A landlord who fails to maintain code-compliant conditions is in breach of the warranty.

Massachusetts does provide a statutory repair-and-deduct remedy, under M.G.L. c. 111, Section 127L, but it is conditional rather than self-help on demand. It opens up when the board of health or local code enforcement agency, or a court, certifies a sanitary code violation that may endanger or materially impair health or safety, the owner is notified in writing, and the owner then fails to begin the repairs within five days of that notice or fails to substantially complete them within 14 days. Once those conditions are met, the tenant may repair or have the defects repaired and deduct the cost from rent that later becomes due, up to four months' rent in any 12-month period or period of occupancy, whichever is shorter.

Rent withholding is the other main remedy: a tenant may withhold rent by paying into court escrow after giving the landlord written notice and a reasonable time to repair. A court then decides what portion of the rent, if any, is owed. Either route generally starts with contacting the local board of health to request an inspection, which can result in a formal violation notice requiring the landlord to repair within a set deadline, and that certification is also what unlocks the Section 127L deduction.

Rent, late fees, and rent control

Massachusetts does not cap the late fee amount, but landlords may not impose any late fee until rent is at least 30 days overdue. A fee charged on day 5 or day 10, for example, is not authorized by Massachusetts law. Landlords must give tenants written notice of a rent increase for month-to-month tenancies at least 30 days before the new amount takes effect.

Rent control was banned statewide by M.G.L. c. 40P, passed by voter referendum in 1994. Boston and Cambridge, which had rent control before 1994, cannot bring it back. The ban is not quite unconditional, though it works that way in practice. Section 4 lets a city or town that accepts the chapter adopt one narrow form of rent regulation, hedged by conditions that make it close to unusable: owner participation must be entirely voluntary and uncoerced, the regulation cannot reach a unit owned by a person or entity owning less than ten rental units or a unit whose fair market rent exceeds $400, and the municipality must compensate each participating owner from its general funds for the difference between the unit's fair market rent and its controlled rent. Because no owner can be compelled to take part, tenants seeking relief from high rents rely on the market, income-based programs, or subsidized housing rather than local rent ordinances.

If you have a landlord-tenant dispute in Massachusetts

Document every interaction in writing. Send repair requests by email or certified mail and keep copies. If your landlord fails to return your deposit within 30 days, fails to hold it in a proper separate account, or fails to transfer it when the property is sold, you may be entitled to triple damages plus attorney's fees under M.G.L. c. 186, Section 15B(7). A missing itemized statement is a different violation: it forfeits the landlord's right to keep any part of the deposit, without trebling. Small claims court (limit $7,000) handles most deposit disputes without a lawyer.

For habitability problems, contact your local board of health first. The AG's Consumer Protection Division handles systemic landlord violations, and Massachusetts Legal Aid (masslegalhelp.org) provides free help for qualifying tenants. The Massachusetts Commission Against Discrimination handles housing discrimination claims. If you face eviction, contact Greater Boston Legal Services or another regional legal aid office as quickly as possible, since the timeline in summary process is short.

For nonpayment evictions and notice-to-quit requirements, see the Massachusetts eviction notice page and the eviction notice hub. For questions about adverse possession and squatter rights, see Massachusetts squatters rights. For the full cluster overview, visit the landlord-tenant laws hub.

This article is general legal information, not legal advice. Landlord-tenant rules vary by state and city and change, and some cities add their own ordinances. For advice about a specific situation, consult a licensed attorney or your state housing agency.

More Massachusetts Laws

• Massachusetts Property Records
• Massachusetts Restraining Order Laws
• Massachusetts Squatters Rights Laws
• Massachusetts Unclaimed Property