Sue Your Landlord for a Security Deposit in Montana Small Claims Court

The 30-Day Rule

Under MCA § 70-25-202, a Montana landlord must provide a written, itemized list of rent, damage and cleaning charges and refund any remaining security deposit within 30 days after the tenancy ends or the premises are surrendered and accepted, whichever happens first. If inspection finds no damage, no cleaning is required, no rent is unpaid, and the tenant can demonstrate no utilities are unpaid, the deposit is due within 10 days. If the list is vague ("cleaning and repairs — $800") or the landlord simply keeps the money without any communication, the missed statutory deadline becomes your strongest piece of evidence.

This statute, part of the Montana Residential Landlord and Tenant Act, is the legal backbone of most tenant small claims cases in the state.

When You Have a Case

You likely have a viable small claims case if:

• The landlord kept all or part of your deposit and never sent a written itemization within the applicable 30-day or 10-day deadline
• The deductions are inflated or fabricated — charging you $500 to repaint walls that had normal wear and tear, for example
• The landlord deducted for damage that existed before you moved in and you have a move-in condition report or photos to prove it

The claim fits small claims court as long as the amount is under $7,000 and you can put a specific dollar figure on what the landlord owes.

What to Do Before Filing

Send a demand letter. Write to the landlord stating the exact amount you are owed, cite MCA § 70-25-202, and give them 10 to 14 days to pay. Send it by certified mail with return receipt requested. Several Montana Justice Courts will not accept your complaint without proof of a demand letter.

This step alone resolves many deposit disputes. A Montana tenant on a public forum reported that after showing their property manager the deposit-return statute, the manager wrote a check for $1,160 on the spot rather than go to court.

Gather your evidence. Start collecting:

• Your signed lease
• Move-in and move-out condition reports (photos, videos, written inspection records)
• The landlord's itemized deduction list (or documentation that you never received one)
• Your demand letter and the certified mail receipt
• Receipts showing you left the unit in good condition (professional cleaning receipt, for example)
• Any text messages or emails between you and the landlord about the deposit

Filing the Case

File your Small Claims Complaint at the Justice Court in the county where the rental property is located or where the landlord can be served. The statutory filing fee is $20; Park and Carbon Counties list a $30 total, and other county schedules may differ. The complaint must be signed under oath in front of the court clerk.

Name the landlord as an individual. If the property is managed by an LLC or corporation, name the entity by its registered legal name — check the Montana Secretary of State's business registry. For a sole proprietor operating under a trade name, list both: "Jane Smith d/b/a Smith Property Management."

At the Hearing

Bring three organized copies of every document. Present your evidence in this order:

1. The lease — establishing the deposit amount and the terms
2. Move-in and move-out photos or inspection reports — showing the condition of the unit
3. The landlord's deduction list (or lack of one) — demonstrating a missed statutory deadline or fabricated charges
4. Your demand letter and certified mail receipt — proving you tried to resolve the dispute first
5. Any communications showing the landlord's response (or silence)

The judge is looking for two things: was the deduction legitimate, and did the landlord follow the statutory timeline? If the landlord cannot produce a written, itemized list delivered within the applicable deadline, the math tilts heavily in your favor.

What the Court Can Award

The court can order the landlord to return the disputed deposit amount, plus your filing fee and service costs. Montana law allows pre-judgment interest at 10% per annum on liquidated balances under MCA § 31-1-106(1), which applies when the deposit amount is fixed and established by the lease.

Getting Organized

The Montana Small Claims Filing Guide covers the full security-deposit filing sequence — from the demand letter through the hearing — with a pre-filing eligibility checklist and an evidence organization worksheet built for tenant claims.

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