Free Tool
Montana Late Fee Calculator
Calculate the maximum late fee you can legally charge in Montana. Check grace periods, fee caps, and compliance with Montana state law.
Your Late Fee
$75.00
Montana has no statutory cap on late fees. Your fee should be "reasonable" and specified in the lease.
Rent + Fee
$1,575.00
Grace Period
None required
Montana Late Fee Law
Grace period: No grace period required
Fee cap: No statutory cap
Daily fees: Allowed
No statutory cap. Must be in lease.
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Try Tenby FreeMontana Late Fee Rules for Landlords
Montana does not require a grace period by law, but most landlords include one in the lease. There is no statutory cap on late fees, but they must be "reasonable" and specified in the lease.
Use the calculator above to check if your proposed late fee complies with Montana law. Need more tools? Try our prorated rent calculator or rent estimate tool.
For a complete guide to Montana landlord-tenant law, read our Montana Landlord-Tenant Law 2026 guide.