Rent increase rules in Maine
Verified against 14 M.R.S. § 6015 and agency sources on 2026-07-04. Not legal advice.
Maine has no statewide cap on rent increases.
- Notice: 45 days' written notice for tenancies at will; 75 days if the increase (alone or cumulatively over 12 months) is 10% or more (14 M.R.S. § 6015); 30 days for mobile-home lots; Portland requires 90 days by ordinance
- Local rent control: Portland
- Statute: 14 M.R.S. § 6015 · source
Portland's 2020 voter-passed rent control caps annual increases (CPI-linked, ~70% of CPI plus limited banked/allowed adjustments).
Rent increase calculator
| Dollar increase | |
| State cap check | |
| Max allowed under cap | |
| Required notice (month-to-month) |
Frequently asked questions
How much can a landlord raise rent in Maine?
There is no statewide limit — any amount, with proper notice. But local rent control applies in Portland, which can cap increases much lower. Portland's 2020 voter-passed rent control caps annual increases (CPI-linked, ~70% of CPI plus limited banked/allowed adjustments).
How much notice is required for a rent increase in Maine?
45 days' written notice for tenancies at will; 75 days if the increase (alone or cumulatively over 12 months) is 10% or more (14 M.R.S. § 6015); 30 days for mobile-home lots; Portland requires 90 days by ordinance. (14 M.R.S. § 6015)
Can rent be raised during a lease in Maine?
No — as everywhere in the US, a fixed-term lease locks the rent unless the lease itself contains an escalation clause. Increases take effect at renewal or on periodic (month-to-month) tenancies with the notice above.
What changed recently in Maine?
Portland's 2020 voter-passed rent control caps annual increases (CPI-linked, ~70% of CPI plus limited banked/allowed adjustments).
Rent increase rules in other states
All states · Alabama · Alaska · Arizona · Arkansas · California · Colorado · Connecticut · Delaware · District of Columbia · Florida
Related: deposit interest rules in Maine · vacancy cost calculator