How much can a landlord raise rent in Massachusetts?
Massachusetts has no cap on rent increases, and cities and towns are barred from adopting rent control (G.L. c. 40P). A landlord can raise the rent by any amount when a lease ends, or for a tenant at will (no lease) with written notice of at least one rental period or 30 days, whichever is longer. An increase within six months after a tenant complained to a code agency or joined a tenants' union is presumed retaliatory.
Law checked against the statute text and official sources on November 8, 2026. Last site change: November 8, 2026 (changelog).
Is there a cap on rent increases in Massachusetts?
No. There is no statewide limit on how much rent can rise. The Rent Control Prohibition Act, adopted by voters in 1994 (G.L. c. 40P), bars cities and towns from adopting rent control for private housing; manufactured-home communities are outside that ban, so some towns still regulate lot rents there. A 2026 initiative petition to cap increases (Initiative Petition 25-21) did not reach the November 2026 ballot after the Supreme Judicial Court ruled it could not go forward (Cella v. Attorney General, SJC-13893).
Local rent control
- Boston has no rent stabilization. The city's 2023 home rule petition (H.3744) was sent to a study order by the Legislature in 2024; statewide local-option bills (H.2328, S.1447) have not been enacted.
- Some towns regulate rents in manufactured-housing communities, which c. 40P does not cover.
How much notice is required?
For a tenant at will (no lease), the tenancy, and with it the rent, can be changed only with written notice equal to the interval between rent payments or 30 days, whichever is longer (G.L. c. 186, § 12). For monthly rent that is one full rental period, usually ending on a rent due date. With a fixed-term lease, the new rent can start when the lease ends.
How often can rent go up?
No statute limits how often rent can rise. For a tenant at will each increase needs a new notice under G.L. c. 186, § 12.
During a fixed-term lease
No Massachusetts statute allows an increase during a fixed-term lease. The rent in a signed lease binds both sides until it ends unless the lease itself provides for an increase (a tax escalation clause, for example, is only valid if it meets G.L. c. 186, § 15C).
Retaliatory increases
A rent increase within six months after the tenant reported a code violation, pursued legal remedies, or organized or joined a tenants' union creates a rebuttable presumption of reprisal (G.L. c. 186, § 18). In an eviction case the same presumption applies and the landlord can rebut it only by clear and convincing evidence (G.L. c. 239, § 2A).
Other rules to know
- A security deposit may not exceed one month's rent (G.L. c. 186, § 15B).
Massachusetts Fair Market Rents 2027 by county →
Sources: G.L. c. 40P (Rent Control Prohibition) · G.L. c. 186, § 12 · G.L. c. 186, § 18 · G.L. c. 239, § 2A · H.3744 (Boston petition) · SJC-13893 docket · G.L. c. 186, § 15B · G.L. c. 186, § 15C