Massachusetts Rent Increase Calculator 2026
How much can rent increase in Massachusetts? Enter the current and proposed rent, then review the applicable statewide rule, notice baseline, exemptions, local-rule checks and official source before serving a notice.
Massachusetts rent increase quick answer
Rule: No general statewide percentage cap is configured for ordinary private-market rentals.
Who it applies to: Coverage depends on the property, tenancy type, lease terms, exemptions and any local ordinance or regulated-housing program.
Notice requirement: 30 days is the current baseline for the sample inputs; tenancy and local law can change it.
Last verified: 2026-09-13
Official source: Linked below.
Massachusetts rent increase rule
Massachusetts does not impose one general statewide percentage cap for ordinary private-market rentals. For a tenancy-at-will, rent can change only with notice under the same timing used to terminate the tenancy: the longer of 30 days or one month before the next rent payment. During a fixed-term lease, the monthly rent ordinarily stays the same unless the lease allows a change. Voucher and local program rules can differ.
Reference: Mass. G.L. c. 186 and Massachusetts Attorney General landlord-tenant guidance
Source verified: 2026-09-13 · This primary source governs the state-level rule record used by connected Max Rental Tools workflows.
Official government source Editorial & verification policyConnected Massachusetts rental tools
This guide is connected to the same dependency graph used by the calculator, rent-increase notice/PDF workflow, related articles, local guides and translated document pages. A verified rule change can therefore be traced to every downstream surface that may require review.
Common Massachusetts rent increase questions
How much can a landlord raise rent in Massachusetts?
No statewide percentage cap is configured in this tool for Massachusetts. Lease terms, notice rules and local ordinances may still restrict an increase.
How much notice is required for a rent increase in Massachusetts?
The calculator currently shows a baseline of 30 days for the sample inputs. Tenancy length, increase size, lease terms and local law can require a different period.
Can a landlord raise rent during a lease in Massachusetts?
A fixed-term lease can restrict when rent changes take effect. Review the lease plus current state and local law before serving a notice.