Montana Landlord-Tenant Guide — Rights & Rules

Receiving an official notice starts a legal clock that directly affects your rights. In Montana, you have 3 days to cure a nonpayment notice by paying in full. Similarly, for lease violations, you have 14 days to fix the problem after receiving a 14-day notice. If you recently exercised a legal right (requesting repairs, reporting code violations), retaliation is prohibited and presumed if the landlord acts within 6 months. Even under a valid notice, your landlord cannot change locks, remove belongings, or shut off utilities — that is illegal self-help and carries a penalty of 3 months' rent or treble damages, whichever is greater. Do not ignore any notice — even if you believe it is defective, responding within the deadline preserves your ability to raise defenses in court.

Eviction in Montana is called wrongful holdover (unlawful detainer). A landlord cannot remove a tenant without going through court — Self-help eviction (changing locks, removing belongings, shutting off utilities) is prohibited §70-24-411.

For nonpayment of rent, the landlord must provide 3 days' written notice §70-24-422. Tenants have 3 days to cure (pay) after receiving a nonpayment notice §70-24-422.

For lease violations, 14 days' notice is required §70-24-422. The tenant has 14 days to cure the violation.

Montana's security deposit limit is no statutory limit. After move-out, the landlord must return the deposit or provide an itemized statement of deductions.

Montana recognizes an implied Warranty of habitability. Landlords must maintain the property in a condition fit for human habitation, including running water, hot water, heat, electricity, sanitation.

The landlord must make repairs within a reasonable time after the tenant gives notice; Montana law may allow a tenant to make certain repairs and deduct the cost from rent, subject to limits and procedures — confirm with a lawyer. Montana allows tenants to repair and deduct from rent under certain conditions.

Retaliatory eviction is prohibited §70-24-431. Retaliation is presumed if the landlord takes adverse action within 6 months of the tenant exercising a legal right.

Self-help eviction is illegal. If a landlord changes your locks, removes your belongings, or shuts off utilities, the penalty is 3 months' rent or treble damages, whichever is greater §70-24-411.

Landlord-tenant cases are often decided on notice periods and deadlines. Missing a deadline — whether it is responding to a notice, filing an answer, or requesting a hearing — can result in losing rights that would otherwise be available. Preserving written evidence (photos, texts, emails, receipts) is critical.