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New Mexico security deposit law
Checked against the New Mexico statutes on September 24, 2026 General information, not legal advice
Key numbers
- Security deposit limit
- 1 month's rent
- on a rental agreement of less than one year; an annual agreement may take more, with yearly interest
- NMSA 1978 § 47-8-18(A)
- Deposit refund deadline
- 30 days
- after the agreement ends or the tenant leaves, whichever is later
- NMSA 1978 § 47-8-18(C)
Security deposit limit
You may ask for a reasonable deposit to cover damage the tenant causes. Under a rental agreement of less than one year, you may not demand or receive a deposit of more than one month's rent. Under an annual rental agreement a larger deposit is allowed, but a deposit over one month's rent earns the tenant interest each year.
- The Act defines a deposit as money or an instrument the tenant hands over as a pledge to abide by the rental agreement, and sets no separate rule for pet deposits. NMSA 1978 § 47-8-3(F)
- The deposit section does not cover last month's rent paid in advance, and a damage deposit may not be treated as prepaid rent. NMSA 1978 § 47-8-18(B)
- Unless you and the tenant agree in writing, a rent payment may not be applied to deposits or damages. NMSA 1978 § 47-8-15(G)
- For the yearly interest on a larger deposit under an annual agreement, see deposit interest. NMSA 1978 § 47-8-18(A)(1) See Deposit interest and accounts on the New Mexico page
The Rentari New Mexico lease states that on a rental agreement of less than one year all deposits together, a pet deposit included, may not exceed one month's rent, and that on an annual agreement deposits together over one month's rent earn yearly interest. Lease preparation stops a lease under a year whose deposits together exceed one month's rent.
Returning the deposit
When the residency ends you may apply the deposit to unpaid rent and to damages from the tenant's breach of the rental agreement or of the tenant's duties, but no deposit may be kept for normal wear and tear. If you keep any part, give the tenant an itemized written list of deductions and the balance, if any, within 30 days after the rental agreement ends or the tenant leaves, whichever is later. Mailing the list and any payment to the tenant's last known address is enough.
- Miss the 30 days and you lose the right to keep any part of the deposit and to counterclaim in a suit over it, owe the tenant's court costs and reasonable attorneys' fees, and lose the right to sue the tenant separately for damage to the home. NMSA 1978 § 47-8-18(D)
- Keeping a deposit in bad faith adds a $250 civil penalty payable to the tenant. NMSA 1978 § 47-8-18(E)
- Normal wear and tear is deterioration from ordinary intended use, without negligence, carelessness, accident, abuse or intentional damage. Uncleanliness is not normal wear and tear. NMSA 1978 § 47-8-3(K)
- You may keep amounts for unpaid rent or utilities, repair work or other legitimate damages. NMSA 1978 § 47-8-18(C)
- If mail comes back undeliverable, or the last known address is the home the tenant left, serve at least one more notice at any other address the tenant gave you. NMSA 1978 § 47-8-13(F)
The lease promises the itemized list and balance within 30 days after the lease terminates or the tenant departs, whichever is later, mailed to the last known address, excludes normal wear and tear, and states the forfeiture and the $250 bad-faith penalty.
Deposit interest and accounts
Under an annual rental agreement, if you demand or receive a deposit of more than one month's rent, you pay the tenant interest on the deposit every year. The rate is the passbook interest the federal home loan bank board permitted savings and loan associations in New Mexico; the statute states no figure. The Act does not require a separate or trust account for deposits.
NMSA 1978 § 47-8-18(A)(1) NMSA 1978 §§ 47-8-1 to 47-8-52
- A rental agreement of less than one year may not carry a deposit over one month's rent at all. NMSA 1978 § 47-8-18(A)(2) See Security deposit limit on the New Mexico page
The lease states that on an annual agreement deposits together over one month's rent earn yearly interest at the statutory passbook rate. Rentari warns about the interest but does not calculate it.
Move-in condition
Not set by statuteThe Owner-Resident Relations Act does not require a move-in checklist or inspection report. At move-out the tenant must leave the home as clean as it was at move-in, apart from ordinary wear and tear, and no part of the deposit may be kept for normal wear and tear.
NMSA 1978 §§ 47-8-1 to 47-8-52 NMSA 1978 § 47-8-22(B) NMSA 1978 § 47-8-18(C)
- The tenant must keep the part of the premises they use as clean and safe as its condition permits. NMSA 1978 § 47-8-22(B)
- At move-in you must deliver possession in line with the rental agreement and your repair duties. If you do not, rent abates in full until you do, and the tenant may end the agreement by written notice. NMSA 1978 § 47-8-26(A), (B)
The lease's condition clause refers to any move-in condition report and, as a lease term, asks the tenant to report existing damage in writing within seven days of move-in.
Questions
How much security deposit can a New Mexico landlord charge?
Under a rental agreement of less than one year, no more than one month's rent. Under an annual agreement you may take more, but a deposit over one month's rent earns the tenant interest every year.
Does a pet deposit count toward the one-month limit?
The Act defines a deposit as money the tenant hands over as a pledge to abide by the rental agreement and sets no separate rule for pet deposits, so Rentari counts a refundable pet deposit toward the one-month limit on an agreement of less than a year.
When must I return a tenant's deposit in New Mexico?
Within 30 days after the rental agreement ends or the tenant leaves, whichever is later, with an itemized list of any deductions. Missing the deadline forfeits your right to keep any of it and exposes you to the tenant's costs and attorneys' fees.