How long does a landlord have to return a security deposit in Montana?

In Montana, the security deposit and an itemized statement of any deductions are generally due within 30 days (10 days if there are no deductions) (Mont. Code Ann. § 70-25-202). Missing the deadline can forfeit the right to withhold and expose the landlord to added damages. Confirm the current statute for your situation.

Do deductions have to be itemized?

Yes — in nearly every state a landlord must provide an itemized statement listing each deduction, not a vague lump sum. This generator lists each deduction on its own line with an amount and does the refund math.

Is the letter generator free?

Yes — free, no signup. It itemizes deductions, does the refund math, cites the state deadline, and can email the PDF so the timestamp documents timely delivery.

Free tool · No signup · Pre-set for Montana

Montana Security Deposit Return Law & Letter

In Montana, the deposit and an itemized statement are generally due within 30 days (10 days if there are no deductions) (Mont. Code Ann. § 70-25-202). Build the letter below — deductions listed line by line and the refund math done.

Start your Montana letter →

Mont. Code Ann. § 70-25-202 — the deadline to return the deposit and send the itemized statement

Montana provides for the deposit’s return within 30 days (10 days if there are no deductions) (Mont. Code Ann. § 70-25-202). 30 days sits mid-range: 6 of the 26 states verified here are shorter, 6 are longer.

Tenancy ends	Letter must be sent by
January 31, 2026	March 2, 2026
April 15, 2026	May 15, 2026
July 31, 2026	August 30, 2026
November 30, 2026	December 30, 2026

What the Montana letter has to contain

Every deduction on its own line. Montana requires an itemized statement rather than a lump sum (Mont. Code Ann. § 70-25-202).
The arithmetic, shown. Deposit held, each deduction, and the balance refunded or still owed — so nothing has to be taken on trust.
Where the refund went. The forwarding address you sent it to, and how.

Proving you sent it in time

The deadline is about when the letter left, and in a dispute that is the fact in question. Email gives you a timestamp for nothing; certified mail gives you a receipt. Either beats posting it second class and hoping. Whatever you use, keep the copy you sent — a Montana deadline you met but cannot evidence is not much better than one you missed.

Write the Montana letter →

Working out what you can defensibly deduct is a separate job from writing the letter — that lives on the Montana deduction page, which prorates each item by its remaining useful life.

Other states: Nevada · New Hampshire · New Jersey · All states

Montana rule last checked 2026-07-23 against Mont. Code Ann. § 70-25-202. General information, not legal advice — verify the current statute before you rely on it.

Everything else we’ve researched about Montana

Same state, the problems either side of this one. Each carries its own statute and the date we last checked it.