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Coverage

Rental deposit

Massachusetts security deposit return — Mass. G.L. c. 186, § 15B

Sub-nationalUS-MARead off primary law

Massachusetts

Rule id
deposit.us-ma
Version
1.0.0
In force from
January 1, 1978
Last read against its sources
August 5, 2026
Countries bound
United States

In plain language

What this regime says.

Massachusetts gives a landlord 30 days to deal with a security deposit after the tenancy ends. A written itemised statement of deductions is mandatory. A landlord who misses the statutory deadline can be liable for up to 3× the deposit balance you were entitled to plus your reasonable attorney's fees.

Who is covered

Residential tenants in Massachusetts whose landlord has kept some or all of a security deposit.

What you get

The wrongfully withheld part of your deposit, potentially multiplied by 3, plus your reasonable attorney's fees.

Where claims go wrong

  • Waiting. The limitation period runs from the day the deadline was missed, not from the day you noticed.
  • Accepting a partial payment marked "full and final settlement" without reserving your rights in writing.

Authority

Every citation,
with its pinpoint.

A claim that cites “EU law” gets filed. A claim that cites Article 7(1)(c) gets answered. These are the exact coordinates this entry rests on.
  1. Mass. G.L. c. 186, § 15BMassachusetts General Laws§ 15B
  2. Mass. G.L. c. 186, § 15B(7)Massachusetts General Laws§ 15B(7) — treble damages, interest, costs and fees
  3. Mass. G.L. c. 186, § 15B(6)Massachusetts General Laws§ 15B(6)(a)–(e) — forfeiture of the deposit
  4. Mass. G.L. c. 260, § 2Massachusetts General Laws§ 2 — six-year contract limitation

Sources

Where a figure is indexed, converted or published by a regulator rather than fixed in the instrument, the provenance is recorded separately. Anything marked as a modelled estimate is exactly that — a model, not a statutory number.

What it imposes

Clocks, defences and the ladder.

A rule module builds these while it evaluates, because a limitation period depends on which forum is open to you. What follows is the structure this regime produces — deliberately with no dates and no figures, because those belong to your facts rather than to the law.

The clocks it starts

  • Landlord's deadline to account for the depositMass. G.L. c. 186, § 15B gives the landlord 30 days from 2026-07-09 to return the deposit and account for any deductions.Mass. G.L. c. 186, § 15B — § 15BResponse due
  • Massachusetts limitation period for a deposit claimFatal if missedSix years on a contract action under G.L. c. 260, § 2. The clock runs from 2026-08-08, the day the landlord's own deadline expired.Mass. G.L. c. 260, § 2 — § 2Limitation period

What it entitles you to, beyond money

  • Interest on the depositMassachusetts requires interest to be paid on a residential security deposit. Rate basis: 5% per year, or the lesser amount actually received from the bank. § 15B(3)(b): the deposit must be held in a separate interest-bearing account in a Massachusetts bank, and interest at 5% per year — or the lesser amount actually earned — is payable to you each year on the anniversary, and within 30 days of the end of the tenancy. Failing to pay interest owed within 30 days of the end of the tenancy carries its own treble-damages award under § 15B(7), separate from the deposit itself. Ask for it expressly: it is routinely forgotten and is owed on top of the deposit itself.§ 15B

What the other side will say

Each of these is a refusal this regime lets a counterparty attempt, paired with the answer to it. Reading them before you write is worth more than any amount of polish on the letter itself.

The landlord charges you for ordinary wear and tear

high likelihood

The landlord bills you for repainting, carpet cleaning, or "making good" the unit, treating ordinary deterioration as damage.

What answers it

Massachusetts does not allow a deposit to be applied to normal wear and tear. § 15B(4)(iii) allows deduction only for "damage to the premises for which the tenant is liable", expressly excluding "reasonable wear and tear". Massachusetts courts read that against the landlord: repainting, ordinary carpet wear and routine cleaning between tenancies are the landlord's cost of doing business. Ask the landlord to identify, item by item, what exceeds that standard, and to produce the move-in condition record that shows the item was not already worn when you took possession.

Mass. G.L. c. 186, § 15B — § 15B

"The carpet/paint had to be replaced"

high likelihood

The landlord charges the full cost of a new carpet, new paint or a new appliance against your deposit.

What answers it

A tenant is not liable for the full replacement cost of an item that was already part-way through its useful life. The recoverable figure is the depreciated value of the remaining life, not a new-for-old replacement. Ask for the installation date and the invoice; carpet is conventionally depreciated over five to ten years and interior paint over two to four. A landlord who cannot date the item cannot prove the loss, and in a deposit case the landlord carries the burden.

Mass. G.L. c. 186, § 15B — § 15B

"We never received a forwarding address"

high likelihood

The landlord says it could not return the deposit because it did not know where to send it.

What answers it

Produce the written record — the email, the text, the certified-mail receipt, the notice-to-vacate that carried the address, or the change-of-address confirmation from the postal service. A landlord who received the address and did nothing cannot rely on this. If the address genuinely was never given, give it now in writing: in most states that starts the clock rather than ending the claim.

Mass. G.L. c. 186, § 15B — § 15B

"We sent you the itemisation"

high likelihood

The landlord asserts it posted the itemised statement inside the statutory window and that you simply did not receive it.

What answers it

Ask for proof of despatch, not proof of intention: the certificate of mailing, the certified-mail receipt, the tracking number, or the timestamped email. Most deposit statutes require the statement to be sent within the period, and the landlord bears the burden of showing it did so. An unevidenced assertion that a letter was posted is not evidence that it was.

Mass. G.L. c. 186, § 15B — § 15B

"We had to have the unit professionally cleaned"

high likelihood

A flat "cleaning fee" is deducted whether or not the unit was left dirty.

What answers it

A standing cleaning charge applied to every tenant is not a loss caused by you and is not a permitted deduction. The landlord must show the unit was left less clean than it was at move-in and must produce the invoice for the work actually done. Compare the move-in and move-out condition records; where the landlord did not make a move-in record, it has little with which to prove the difference.

Mass. G.L. c. 186, § 15B — § 15B

The deposit was never held in a separate Massachusetts account

high likelihood

The landlord simply banked your deposit with its own money.

What answers it

§ 15B(3)(a) requires the deposit to be held in a separate interest-bearing account in a Massachusetts bank, out of reach of the landlord's creditors, and § 15B(3)(a) requires the landlord to give you a receipt within 30 days identifying the bank, its address and the account number. Failing to do so is a § 15B(6)(a) violation, which is one of the three that trebles under § 15B(7). Ask for the account details in writing; the answer usually decides the case.

Mass. G.L. c. 186, § 15B — § 15B

No statement of condition was ever given

high likelihood

The landlord claims damage but there is no record of the condition at move-in.

What answers it

§ 15B(2)(c) requires the landlord to give a separate written statement of the present condition of the premises on receipt of the deposit or within 10 days of the start of the tenancy, in the statutory form, telling you to correct it within 15 days. Without it the landlord has nothing to compare the end-of-tenancy condition to, and it is fighting a wear-and-tear argument with no baseline.

Mass. G.L. c. 186, § 15B — § 15B

The itemised list was not sworn

high likelihood

The landlord sent a list of deductions on letterhead.

What answers it

§ 15B(4)(iii) requires the itemised list of damages to be "sworn to by the lessor or his agent under pains and penalties of perjury" and accompanied by written evidence of the cost. An unsworn list does not satisfy the section, which puts the landlord in § 15B(6)(b) and forfeits the deposit.

Mass. G.L. c. 186, § 15B — § 15B

"You broke the lease, so we keep the deposit"

medium likelihood

The landlord treats an early departure as forfeiting the deposit outright.

What answers it

A deposit is security for actual loss, not a penalty. Breaking a lease may make you liable for rent until the unit is re-let, but the landlord must mitigate, must itemise what it actually lost, and must still account for the deposit within the statutory period. A blanket forfeiture clause does not survive: deposit statutes are generally non-waivable, so a lease term purporting to let the landlord keep the money regardless is unenforceable.

Mass. G.L. c. 186, § 15B — § 15B

Where to take it next

  1. Written demand to the landlordSend a dated letter that quotes Mass. G.L. c. 186, § 15B, states the date the statutory clock started and the date it expired, sets out the sum claimed, and gives a deadline of 14 days. Send it by a method that produces proof of despatch. Most deposits come back at this stage, because the letter shows the landlord you know the deadline it missed.Claim directtypically 14 days
  2. Massachusetts Attorney General — Consumer Advocacy and Response DivisionThe AG mediates landlord-tenant complaints and treats deposit violations as unfair or deceptive acts under c. 93A. A c. 93A demand letter, sent 30 days before suit, opens a second route to multiple damages and fees independent of § 15B.Regulatortypically 60 daysofficial page
  3. Massachusetts Small Claims Session of the District Court or the Boston Municipal CourtBinding on themThe claim limit is USD 7,000 and the filing fee is around USD 40. The USD 7,000 cap does not apply to the treble-damages element in a security-deposit case — statutory multiple damages are recoverable above the limit, which makes small claims unusually attractive here. Bring the lease, the deposit receipt, your move-in and move-out photographs, the forwarding-address proof and your demand letter.Small claimstypically 90 daysofficial page

Documents

What this regime can produce.

Every one of these is a document you send yourself, in your own name. Duesday never writes to anybody on your behalf and is never anyone’s agent.

The same claim type elsewhere

Albania — rental deposit (Kodi Civil (Civil Code), qiraja)ALNationalAlbaniaKodi Civil (Civil Code), qirajaConfidence: lowAustria — rental deposit (Allgemeines Bürgerliches Gesetzbuch (ABGB) § 16b, and the Mietrechtsgesetz (MRG))ATNationalAustriaAllgemeines Bürgerliches Gesetzbuch (ABGB) § 16b, and the Mietrechtsgesetz (MRG)Confidence: lowBelgium — rental deposit (Regional housing codes: Vlaams Woninghuurdecreet, Décret wallon relatif au bail d’habitation, Code bruxellois du Logement)BENationalBelgiumRegional housing codes: Vlaams Woninghuurdecreet, Décret wallon relatif au bail d’habitation, Code bruxellois du LogementConfidence: lowBosnia and Herzegovina — rental deposit (The law of obligations of the relevant entity (Federation of Bosnia and Herzegovina or Republika Srpska) and the applicable housing legislation)BANationalBosnia & HerzegovinaThe law of obligations of the relevant entity (Federation of Bosnia and Herzegovina or Republika Srpska) and the applicable housing legislationConfidence: lowBulgaria — rental deposit (Закон за задълженията и договорите (Obligations and Contracts Act), наем)BGNationalBulgariaЗакон за задълженията и договорите (Obligations and Contracts Act), наемConfidence: lowCroatia — rental deposit (Zakon o najmu stanova and the Zakon o obveznim odnosima)HRNationalCroatiaZakon o najmu stanova and the Zakon o obveznim odnosimaConfidence: lowCyprus — rental deposit (Rent Control Law of 1983 (23/1983) for controlled tenancies, and the general law of contract)CYNationalCyprusRent Control Law of 1983 (23/1983) for controlled tenancies, and the general law of contractConfidence: lowCzechia — jistota / kauce (Občanský zákoník § 2254)CZNationalCzechiaObčanský zákoník (89/2012 Sb.), § 2254Confidence: high

Other rights in the same countries

Does this one reach your facts?

The engine runs every regime that could apply at once and reconciles them, rather than making you guess which page to read.

Not a law firm. Not legal advice. You send it yourself. This page describes a law; it is not advice about your situation and no outcome is promised.