Massachusetts Security Deposit Law: Return Deadline, Limits, and How to Get It Back

Massachusetts has one of the strictest security deposit laws in the country. A landlord may charge no more than one month's rent as a security deposit, must return it (with interest) within 30 days after your tenancy ends, and faces steep penalties for getting the rules wrong. The controlling law is the state's security deposit statute, commonly cited as G.L. c. 186, sec. 15B. Because this statute is detailed and unforgiving toward landlords, even small paperwork mistakes can entitle a tenant to a refund of the entire deposit plus damages. Always confirm the current text of the statute, since landlord-tenant rules change and some cities have additional protections.

How much a landlord can charge

In Massachusetts, the security deposit is capped at the equivalent of one month's rent. A landlord cannot demand more than that as a deposit, and cannot disguise extra charges as a separate "deposit."

• At move-in, a landlord may generally collect first month's rent, last month's rent, a security deposit (up to one month's rent), and the cost of a new lock and key.
• Charging more than one month's rent as a deposit is a violation that can require returning the deposit.
• The landlord must give you a written receipt and a signed statement of condition describing the apartment's condition at the start of the tenancy. You have a chance to add to or disagree with it.

Where the money must be held

This is where many Massachusetts landlords slip up. Your deposit is your money, not the landlord's.

• The deposit must be placed in a separate, interest-bearing account in a Massachusetts bank, protected from the landlord's creditors.
• Within 30 days of receiving the deposit, the landlord must tell you the name and location of the bank and the account number.
• You are entitled to 5% interest per year, or the actual lower rate the bank pays, accruing annually. The landlord must pay or credit this interest each year the deposit is held.

The 30-day return deadline and itemized statement

After you move out and the tenancy ends, the landlord must act quickly.

• The deposit (plus any owed interest) must be returned within 30 days of the end of the tenancy.
• If the landlord keeps any part for damage, they must give you an itemized list of the damages, signed under the pains and penalties of perjury, along with written evidence such as repair estimates or receipts, within that same 30-day window.
• Failing to provide the sworn, itemized statement on time generally forfeits the landlord's right to keep any of the deposit for damage.

What can and cannot be deducted

A landlord can deduct for unpaid rent, certain unpaid increases in real estate taxes if the lease allows, and the reasonable cost to repair damage beyond ordinary use.

• Normal wear and tear is never deductible. Faded paint, minor scuffs, worn carpet from everyday walking, and small nail holes are the landlord's cost of doing business.
• Deductible damage is something beyond normal aging, such as large holes in walls, broken fixtures, pet stains, or removed appliances.
• The landlord cannot charge for cleaning that simply returns the unit to normal condition or for repairs noted on the original statement of condition.

Penalties for wrongful withholding

Massachusetts law gives tenants real leverage. Certain violations entitle you to triple (treble) the deposit amount, plus 5% interest, court costs, and reasonable attorney's fees.

• Triple damages typically apply when a landlord fails to return the deposit within 30 days, fails to provide the sworn itemized list, deducts for things that aren't allowed, or doesn't hold the money in a proper separate account.
• Because attorney's fees are recoverable, lawyers and legal aid organizations sometimes take these cases when a clear violation exists, even for modest deposits.
• A landlord cannot retaliate against you for asserting your deposit rights.

How to sue: Housing Court or small claims

Before filing, send the landlord a dated written demand for your deposit and keep a copy. If they still won't return it, you can sue.

• Massachusetts has a specialized Housing Court covering most of the state, which hears landlord-tenant disputes and is used to deposit cases.
• Smaller claims can be filed in small claims sessions (in District Court or Housing Court), where the filing is informal and you usually don't need a lawyer. The small claims limit is generally $7,000, though some statutory multiple-damage awards can exceed that cap.
• Bring your lease, receipts, the statement of condition, photos, your written demand, and any correspondence. Document the unit's condition with dated photos at move-out.

This article is general legal information, not legal advice. Massachusetts security deposit rules are technical and change over time, and your city may add protections. Confirm the current version of the statute and, for anything significant, consult a Massachusetts tenant or landlord attorney or a local legal aid program.