Maine Rent Increase Notice 2026: When Is 45 Days or 75 Days Required?
Maine generally requires 45 days' written notice for rent increases under 10% and 75 days when an increase reaches 10% or more, including cumulative increases within 12 months. See how the rule works and the separate mobile-home park notice requirement.
The short answer
Maine law generally requires at least 45 days' written notice before a residential rent increase. If the increase is 10% or more, the landlord must generally provide at least 75 days' written notice.
The 75-day rule also matters when multiple increases within 12 months add up to 10% or more. Maine's Attorney General gives the example of a 5% increase followed by another 5% increase in the same year: the later increase requires at least 75 days' notice.
When 45 days applies
For an ordinary residential increase below the 10% threshold, Maine's statute requires at least 45 days' written notice. The notice requirement cannot simply be waived by agreement.
The lease still matters. Maine's Attorney General explains that rent generally cannot be increased above the amount stated in an unexpired fixed-term lease unless the lease lawfully permits the change.
When 75 days applies
If a single rent increase is 10% or more, Maine requires at least 75 days' written notice. The rule also looks at multiple increases within a 12-month period.
If earlier increases plus the proposed increase bring the total increase during the 12-month period to 10% or more, the landlord must provide at least 75 days' notice before the increase that reaches that threshold.
Mobile-home parks use a separate 90-day rule
Maine's Attorney General states that a newer rule requires 90 days' notice for rent and fee increases in mobile-home parks. That is a separate housing category and should not be collapsed into the ordinary 45-day or 75-day analysis.
Residents and park owners should use the mobile-home-specific guidance when the tenancy is a park tenancy.
What records to keep
Keep the lease, every rent-increase notice from the prior 12 months, a rent ledger showing the actual rent paid, and the proposed effective date. Those records make it possible to calculate whether cumulative increases cross the 10% threshold.
For landlords, documenting the notice date and delivery method is particularly important because the notice period is a statutory requirement rather than just a suggested practice.
Use the Maine notice tools carefully
Max Rental Tools can help calculate the increase and organize the notice workflow, but the user should confirm whether 45, 75 or a special 90-day mobile-home rule applies before generating or serving a notice.
Common questions
How much notice is required for a rent increase in Maine?
Maine generally requires 45 days' written notice for increases under 10% and 75 days for an increase of 10% or more, subject to tenancy and housing-type rules.
Do multiple Maine rent increases count together?
Yes. If multiple increases within 12 months add up to 10% or more, the 75-day notice rule applies before the increase that reaches that threshold.
How much notice is required in a Maine mobile-home park?
Maine's Attorney General states that 90 days' notice is required for rent and fee increases in mobile-home parks under the newer rule.
Official sources
Maine Attorney General — Rent Increase Notices AdvisoryMaine Legislature — 14 M.R.S. § 6015Continue your check
Use the state directory for current jurisdiction-specific rules, calculate the proposed increase, then prepare the appropriate rental document only after the legal-rule checks are complete.