Cal. Civ. Code § 70-24-205
Extension Of Written Rental Agreements
Operative Text
If the landlord and tenant fail to establish a default extension period for the lease in the rental agreement and neither party gives a 30-day written notice to the other to terminate the tenancy before the rental agreement's original termination date, the tenancy continues on a month-to-month basis.
Under Mont. Code Ann. § 70-24-205, when a written rental agreement expires without a built-in renewal or extension clause, and neither the landlord nor the tenant provides written notice of termination at least 30 days before the end date, the tenancy does not simply end — it automatically converts to a month-to-month arrangement. This rule fills the gap when parties take no affirmative action at the lease's conclusion. The conversion happens by operation of law, regardless of whether either party intended it.
Plain English — not legal advice.
Mont. Code Ann. § 70-24-205 means that compliant operators who do not wish to continue a tenancy beyond the original lease term generally ensure that a written 30-day termination notice is delivered before the agreement's end date. Operators who want a built-in renewal or extension mechanism typically include a default extension clause directly in the rental agreement. Without one of these steps, the tenancy will roll over to month-to-month, which affects planning for re-leasing, rent adjustments, or unit turnover.
General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.
Under Mont. Code Ann. § 70-24-205, a tenant whose lease expires without a termination notice from either side gains the benefit of continued month-to-month occupancy rather than facing an abrupt end of tenancy. This means a landlord who did not provide 30 days' written notice before the original end date generally cannot treat the tenancy as having terminated on that date. Tenants who believe a landlord is improperly treating an expired lease as fully terminated may wish to consult a tenant-rights organization or legal aid provider familiar with Montana landlord-tenant law.
General guidance for tenants — not legal advice for your specific situation. Consult a tenant-rights organization or attorney for advice on your case.
Generated October 22, 2026 — auto-generated, not yet human-reviewed. See /transparency for methodology.
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