Security deposit rules in Montana
Montana law sets no limit on the amount of a security deposit. In Montana, the deposit is due back within 10 days when nothing is owed, or within 30 days with a written list of charges.
Checked against Montana law on Oct 28, 2026.
What Montana law says
What is the most a landlord can charge for a security deposit in Montana?
Montana law sets no limit on the amount of a security deposit.
We read the state's landlord-tenant law on Oct 28, 2026 and found no statute on this.
How long does a landlord in Montana have to return a security deposit?
In Montana, the deposit is due back within 10 days when nothing is owed, or within 30 days with a written list of charges.
Source: Mont. Code Ann. § 70-25-202(1), read Oct 28, 2026.
Check your city's rules too: a city or county can set stricter limits. This is general information, not legal advice.