The rule
- Landlord ends month-to-month
- 30 days
- Tenant ends month-to-month
- 30 days
- Week-to-week
- 7 days
- Unpaid rent
- 3 days
- Lease violation
- 14 days
- Unpaid rent
- 3-day written notice to pay or the rental agreement ends (MCA 70-24-422(2)).
- Lease violations
- 14-day notice with a chance to cure for most breaches. 3 days for unauthorized pets or occupants or verbal abuse; 5 days for a repeat within 6 months.
Last reviewed September 30, 2026
Not legal advice. Statutes change; check the linked section.