Rent increase rules in Montana
Verified against Mont. Code § 70-24-441 and agency sources on 2026-07-04. Not legal advice.
Montana has no statewide cap on rent increases.
- Notice: 30 days for month-to-month tenancies; 7 days for week-to-week (via change/termination rules, Mont. Code § 70-24-441)
- Statute: Mont. Code § 70-24-441 · source
Rent increase calculator
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Frequently asked questions
How much can a landlord raise rent in Montana?
There is no statewide limit — any amount, with proper notice.
How much notice is required for a rent increase in Montana?
30 days for month-to-month tenancies; 7 days for week-to-week (via change/termination rules, Mont. Code § 70-24-441). (Mont. Code § 70-24-441)
Can rent be raised during a lease in Montana?
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.
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 Montana · vacancy cost calculator