Montana Rent Increase Questions (2026)

Montana has no statewide percentage cap and requires 30 days' written notice. Tap a question for the full plain-English answer.

• Can my landlord raise my rent in Montana?

  Yes — in Montana your landlord can raise your rent, and there is no fixed limit at the state level. They still must give you 30 days' written notice before the new rent starts.

• How much can rent be raised in Montana?

  Montana does not set a percent cap on rent increases. Landlords can propose any amount as long as they follow the 30-day written notice rule and don't violate a lease or a local ordinance.

• How much notice is required for a rent increase in Montana?

  Montana requires at least 30 days' written notice before a rent increase can start on a month-to-month tenancy. Verbal notice is not enough.

• Is a 10% rent increase legal in Montana?

  In Montana a 10% increase is generally within the legal range because there's no statewide percentage cap, as long as you get 30 days' written notice.

• Can my landlord raise rent without notice in Montana?

  No. Montana requires at least 30 days' written notice before a rent increase can start. If no notice was delivered, the new amount is generally not owed.

• Can my landlord raise rent during my lease in Montana?

  Generally no. In Montana, a fixed-term lease locks in the rent until the lease ends. A mid-lease increase is only allowed if your lease contains a specific clause allowing it.

• What if my rent increase is illegal in Montana?

  You generally do not owe the unlawful portion. Save the notice, respond in writing citing Montana's 30-day rule, and contact a local tenant-rights or legal-aid organization.

• Is there rent control in Montana?

  No — Montana does not have statewide rent control. Individual cities may have their own local ordinances that cap rent.

• How often can rent be raised in Montana?

  Montana does not limit how often rent can be raised at the state level, but each increase still needs 30 days' written notice and must not violate a fixed-term lease.

• Can my landlord raise rent after my lease ends in Montana?

  Yes. When your lease ends in Montana, your landlord can offer a renewal at a new rent, as long as they give you 30 days' written notice.

Not legal advice. Consult a licensed Montana attorney for a binding opinion on your specific situation.