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Free Massachusetts Lease
Extension Addendum Template

The agreement is signed by the same parties as the lease it attaches to.

Last reviewed September 2026

Written by LawLease Editorial

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Massachusetts Lease Extension Addendum

This Lease Extension Addendum is built with Massachusetts as the governing state. These are the Massachusetts landlord-tenant rules that most often bear on it, with the statute for each.

Massachusetts rules at a glance

Massachusetts rules for a Lease Extension Addendum
Tenancy-at-will termination30 days or one full rental period, whichever is longerM.G.L. c. 186 §12
Rent-increase noticeNo specific statute; for a tenancy at will, the termination notice period applies
Rent controlBanned statewideM.G.L. c. 40P
Rent increasesMassachusetts has no rent-increase notice statute. Rent under a fixed-term lease can’t change mid-term unless the lease allows it; for a tenancy at will, an increase takes effect only after proper notice under c. 186 §12.

Rent, late fees & fees

  • Late fees — No lease may charge interest or a penalty for late rent until the rent is 30 days overdue (§15B(1)(c)). Imposing a fee sooner is also an unfair practice under the Attorney General’s regulations (940 CMR 3.17(6)(a)).
  • Broker fees — Since August 1, 2025, whoever hires a rental broker pays the broker’s fee. A landlord who lists with a broker can’t pass that fee to the tenant; a tenant pays only if the tenant hired the broker to work for them (M.G.L. c. 112 §87DDD½).
  • Rent increases — Massachusetts has no rent-increase notice statute. Rent under a fixed-term lease can’t change mid-term unless the lease allows it; for a tenancy at will, an increase takes effect only after proper notice under c. 186 §12.
  • Rent control — Local rent control has been banned since 1994 (c. 40P). A 2026 statewide rent-cap ballot question was struck from the November ballot by the Supreme Judicial Court in June 2026, so the ban remains in force.

Massachusetts Lease Extension Addendum FAQs

How much notice is needed to end a month-to-month tenancy in Massachusetts?

30 days or one full rental period, whichever is longer, in writing, ending on a rent day. For unpaid rent, a 14-day notice to quit is enough, but it must come with the state’s required form, and many tenants have a right to cure (c. 186 §§11, 12, 31).

More Massachusetts landlord documents

Lease Extension Addendum in other states

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