Can a Massachusetts Landlord Raise Rent Mid-Lease?

If you’re renting a home or apartment in Massachusetts, you may wonder whether your landlord can legally raise the rent before your lease ends. Navigating rent increases can be stressful, but understanding your rights under Massachusetts law is the best first step to protecting yourself and responding appropriately.

Understanding Rent Increases in Massachusetts

Massachusetts has clear laws about when and how a landlord can raise your rent. The answer depends on whether you have a fixed-term lease or a "tenancy-at-will" (month-to-month agreement):

  • Fixed-term Lease: Your rent amount stays the same until your lease ends. Landlords cannot raise your rent in the middle of a fixed-term lease unless your lease specifically allows it.
  • Tenancy-at-Will: If you rent month-to-month, your landlord can raise your rent with proper advance written notice, usually at least one full rental period (typically 30 days).

Most renters are protected from mid-lease rent increases in Massachusetts due to state law and standard lease contracts, which lock in the rent for the lease’s duration. Only at the end of your lease, or with the start of a new lease term, can rent typically be increased.[1]

What Does the Law Say?

Under Massachusetts General Laws Chapter 186 Section 15B, the terms of your fixed lease agreement, including your rent amount, remain in effect until the lease period expires. Any changes—including rent increases—require either:

  • Your written consent (for changes during the lease), or
  • A new lease or notice for tenancy-at-will after the current lease ends
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How Landlords Can (and Cannot) Raise Rent

Here’s a summary of when landlords can legally raise your rent:

  • Mid-Lease: Not allowed without your written agreement.
  • When Lease Ends: Allowed—with written notice of new terms for renewal.
  • Month-to-Month: Allowed with at least 30 days’ advance written notice.

Landlords cannot retaliate against tenants for asserting their rights—for example, by raising rent because you asked for repairs or reported a code violation. Such retaliation is prohibited by Massachusetts law.[2]

Required Official Notices and Forms

When a landlord plans to raise your rent in a month-to-month (tenancy-at-will) situation, they must provide written notice. While there’s no special Massachusetts government-issued form for this, the notice must include:

  • The new rent amount
  • The date the new amount will take effect
  • At least 30 days’ advance notice (or the full rental period, whichever is longer)

A sample "Notice of Rent Increase" is available at the Mass.gov Tenant Rights page. If you believe your landlord is not following proper procedure, you can contact the official Massachusetts Housing Court for help.

Tip: If you receive a rent increase notice during your fixed-term lease, do not ignore it. Respond in writing and seek legal support if you are unsure of your rights.

What to Do if Your Landlord Raises Rent Mid-Lease

If your landlord tries to raise your rent before your lease ends, here’s how you can respond:

  • Review your lease agreement. Most leases do not allow mid-lease rent increases.
  • Reply to your landlord in writing, politely referencing your lease and the relevant state law.
  • If needed, get support from local resources or legal services listed below.

Massachusetts Tenant Rights Legislation

The main tenancy laws are found in the Massachusetts General Laws Chapter 186 (Residential Landlord and Tenant Act). This covers rent, eviction, security deposits and more.

FAQs: Massachusetts Rent Increase Rules

  1. Can my landlord raise my rent in the middle of a lease?
    In nearly all cases, your landlord cannot raise your rent until your lease term ends, unless you agree in writing.
  2. How much notice does my landlord need to give for a rent increase?
    If you're a month-to-month tenant, you must get at least 30 days’ written notice before any rent increase takes effect.
  3. Is there a limit on how much my landlord can increase the rent?
    Massachusetts does not have statewide rent control, so there’s no set cap on rent increases, unless local ordinances apply.
  4. What should I do if I receive an illegal rent increase notice?
    Contact your landlord in writing, cite your lease and state law, and seek support from renter resources or Housing Court if needed.
  5. Where can I get help if I suspect retaliation?
    You can reach out to the Massachusetts Housing Court or local legal aid for advice and next steps.

Summary: What Massachusetts Renters Should Know

  • Mid-lease rent increases are not allowed unless you agree in writing.
  • Month-to-month tenants get at least 30 days’ written notice of rent increases.
  • Know your rights—contact state or local agencies if you have questions.

Understanding these basics can help protect you from unexpected or unfair rent hikes. If you’re unsure, seek advice early to avoid problems later.

Need Help? Resources for Renters


  1. Massachusetts General Laws c. 186, § 15B - Rent and Lease Terms
  2. Tenant Rights in Massachusetts (Mass.gov)
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights USA

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for renters everywhere.