Montana Security Deposit Law
Montana law does not cap the amount of a security deposit (MCA Title 70, ch. 25 sets no limit). It must refund the deposit, or an itemized list of deductions, within 10 calendar days after the lease ends.
Last verified: · Researched and cited by MakeLease · not yet attorney-reviewed
Montana deposit rules
| Rule | What the law says |
|---|---|
| Deposit limit | No state capMCA Title 70, ch. 25 (no cap), MCA § 70-25-101(4) |
| Return deadline | 10 days after the lease endsMCA § 70-25-202(1)(a), (b) |
| Itemized deductions | RequiredMCA § 70-25-202(1)(a), MCA § 70-25-203 |
| Interest on deposit | Not required statewideMCA Title 70, ch. 25 (silent) |
Maximum deposit
Montana law does not cap the amount of a security deposit (MCA Title 70, ch. 25 sets no limit). (MCA Title 70, ch. 25 (no cap), MCA § 70-25-101(4))
Return deadline
Landlords must return the full deposit within 10 days if there is no damage, cleaning, unpaid rent or unpaid utilities, and otherwise must deliver the refund with a written list of charges within 30 days after the tenancy ends or the unit is surrendered (MCA § 70-25-202). (MCA § 70-25-202(1)(a), (b))
Itemized statement of deductions
Landlords must give the departing tenant a written list of rent due and damage and cleaning charges within 30 days, or they forfeit the right to withhold for damage or cleaning (MCA §§ 70-25-202, 70-25-203). (MCA § 70-25-202(1)(a), MCA § 70-25-203)
Interest on the deposit
Montana law does not require landlords to pay interest on security deposits (MCA Title 70, ch. 25 is silent). (MCA Title 70, ch. 25 (silent))
Penalty for wrongful withholding
A landlord who wrongfully withholds a deposit owes the tenant the amount wrongfully withheld plus possible attorney fees, and a landlord who skips the written list forfeits all damage and cleaning deductions (MCA §§ 70-25-203, 70-25-204). (MCA § 70-25-204(1), MCA § 70-25-203)
More Montana deposit rules
Where the deposit is held
Montana's security deposit law does not require landlords to keep deposits in a separate, trust or interest-bearing account (MCA Title 70, ch. 25). (MCA Title 70, ch. 25 (no holding rule))
Receipt or written notice of the deposit
Montana does not require a receipt for a security deposit or a notice saying where it is held (MCA Title 70, ch. 25). (MCA Title 70, ch. 25 (no receipt rule))
Move-in condition checklist
A Montana landlord that requires a security deposit must give each tenant, when the lease is signed or the tenancy begins, a separate signed written statement of the unit's present condition (MCA § 70-25-206(1)-(2)). (MCA § 70-25-206, MCA § 70-25-201(2))
A landlord that skips the statement (or, on written request, the prior tenant's damage and cleaning list) cannot recover damage or cleaning costs unless it proves by clear and convincing evidence that this tenant caused the damage (§ 70-25-206(3)). Either party may ask for an inspection within 1 week before the tenancy ends (§ 70-25-201(2)).
Pet deposits
Montana has no pet-deposit statute, though any charge for cleaning and damages, however labeled, is presumed to be a refundable security deposit, and the 2023 emotional-support-animal law does not address deposits (MCA §§ 70-25-101(4), 70-24-114). (MCA § 70-25-101(4), MCA § 70-24-114)
Nonrefundable fees
Montana presumes that any fee or charge for cleaning and damages is a security deposit no matter what the lease calls it, so a 'nonrefundable' cleaning or damage fee is treated as refundable deposit money (MCA § 70-25-101(4)). (MCA § 70-25-101(4), MCA § 70-24-201(4))
Any deposit the lease requires the tenant to keep in place for part or all of the term is also presumed to be a security deposit. Since 2025 a landlord also may not add a fee based on how rent is paid, except to recoup an electronic bank fee (§ 70-24-201(4)).
Small-landlord exemptions
Montana's deposit rules apply to every rental of a dwelling covered by the landlord-tenant acts, with no carve-out for small or owner-occupant landlords (MCA §§ 70-25-102, 70-24-104). (MCA § 70-25-102, MCA § 70-24-104)
Deposit alternatives and installments
No Montana statute regulates deposit-alternative products, surety bonds or installment payment of deposits (MCA Title 70, ch. 25). (MCA Title 70, ch. 25)
How Montana compares
No statewide cap, like 20 other states among the 50 states and DC. Its 10 days return window: none faster, 48 longer.
| State | Deposit limit | Return deadline | Itemized deductions |
|---|---|---|---|
| Montana | No state capMCA Title 70, ch. 25 (no cap) | 10 days after the lease endsMCA § 70-25-202(1)(a), (b) | RequiredMCA § 70-25-202(1)(a) |
| Idaho | No state cap | 21 days after move-out | Required |
| North Dakota | 1 month's rent (with exceptions) | 30 days after move-out | Required |
| South Dakota | 1 month's rent (with exceptions) | 21 days after the triggering event | Required |
| Wyoming | No state cap | 30 days after the lease ends | Required |
Montana deposit return deadline calculator
Example: Deadline: Tuesday, February 10, 2026
10 calendar days after the lease ends on Saturday, January 31, 2026.
Weekend and holiday flags use the federal holidays in 5 U.S.C. § 6103; Montana state holidays are not checked.
Put the deposit terms in a lease
Write the deposit amount you choose and the 10-day return window into a Montana lease. Creating it is free with no card; an account is needed to save or e-sign.
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