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Montana Statewide Rule

Montana Late Rent Fee Rules

Few RestrictionsApplies statewide across Montana (2026)

Key Facts

Statutory cap
None
Grace period
Not required by statute
Basis for charging
Must be in the lease (§ 70-24-201)
Enforceability test
Must be reasonable, not a penalty
Last verified: September 5, 2026

Summary

Montana's Residential Landlord and Tenant Act sets no statutory cap on late rent fees and requires no grace period. Late fees are governed only by the rental agreement under Mont. Code Ann. § 70-24-201, and courts will enforce only fees that are reasonable rather than a penalty.

70-24-201. Rental agreement - terms and conditions. (1) A landlord and a tenant may include in a rental agreement terms and conditions not prohibited by this chapter or other rule or law, including rent, term of the agreement, and other provisions governing the rights and obligations of the parties.

Full Breakdown

No section of Montana's Residential Landlord and Tenant Act (Title 70, Chapter 24) caps the dollar amount or percentage of a late fee, and there is no mandatory grace period. Under Mont. Code Ann. § 70-24-201, rent and the terms surrounding it are set by the rental agreement, so any late fee must be written into the lease to be charged. Montana courts apply general contract law: a charge structured as an unenforceable penalty rather than a reasonable estimate of the landlord's loss may not be collected. Because there is no statutory ceiling, a tenant's protection comes from the lease terms and the reasonableness standard, not from a fixed cap.

Violations & Penalties

No specific statutory penalty. A late fee not stated in the lease is uncollectible, and a fee a court finds to be an unreasonable penalty rather than a genuine pre-estimate of loss will not be enforced.

Frequently Asked Questions

Does Montana cap late rent fees?
No. The Residential Landlord and Tenant Act sets no statutory cap on late fees; the amount is governed by the lease and a general reasonableness standard.
Is a grace period required before a late fee in Montana?
No statute requires a grace period. A late fee may apply once rent is unpaid when due, subject only to what the lease provides.
Can a Montana landlord charge a late fee not in the lease?
No. Under § 70-24-201 rent terms come from the rental agreement, so a late fee must be written into the lease to be charged.

Sources

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