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New Mexico Security Deposit Laws: 1-Month Cap (Leases Under 1 Year) with Penalties

Updated:
By GuacamoleBlog Editorial Team

New Mexico limits security deposits to 1 month rent for leases under 1 year, with no statutory limit for longer-term leases. Landlords must return deposits within 30 days with a detailed written itemized statement of deductions. A landlord who fails to account within 30 days forfeits the right to keep anything and owes court costs and attorney’s fees; bad-faith retention adds a flat $250 penalty.

The Short Answer

New Mexico caps security deposits at 1 month rent for leases lasting under 1 year; leases of 1 year or longer have no statutory cap. Landlords must return deposits within 30 days with an itemized statement of deductions. A landlord who fails to send the itemized statement and balance within 30 days forfeits the right to withhold any portion, cannot counterclaim, cannot sue separately for property damage, and owes your court costs and reasonable attorneys’ fees (§ 47-8-18(D)). Retaining a deposit in bad faith adds a flat $250 civil penalty (§ 47-8-18(E)).

Security Deposit Cap

New Mexico’s deposit cap depends on the lease length:

If you are signing a month-to-month or short-term lease with monthly rent of $1,200, the maximum security deposit is $1,200. Under an annual lease there is no cap, but a deposit above one month’s rent obliges the landlord to pay you annual interest at the passbook rate (§ 47-8-18(A)(1)). All deposits, regardless of cap status, must still be returned within 30 days with proper itemization.

The 30-Day Return Deadline

Under New Mexico Statute § 47-8-18, landlords must return security deposits or provide a written itemized statement of deductions within 30 days after the lease terminates. The 30-day window is strict—failure to meet it can expose landlords to damages and attorney’s fees. Landlords should mail the deposit or statement to your last known address unless you provide alternative instructions in writing.

What Can a New Mexico Landlord Legally Deduct?

New Mexico law permits landlords to deduct only for actual costs and documented damage. Allowable deductions include:

Each deduction must be itemized with a description and, ideally, supported by receipts or repair estimates.

What Is Normal Wear and Tear in New Mexico?

New Mexico recognizes normal wear and tear as the expected deterioration from ordinary residential living. Landlords cannot charge tenants for these predictable conditions.

Examples of normal wear and tear:

Examples that are NOT normal wear and tear:

Penalties for Wrongful Withholding

New Mexico imposes meaningful penalties for wrongful deposit withholding. If a landlord wrongfully withholds your security deposit, you can recover:

For example, if a landlord never sends an itemized statement and keeps $300, the forfeiture rule in § 47-8-18(D) means the whole deposit must come back, not just the $300, plus your court costs and attorneys’ fees; if the court finds bad faith, add the flat $250.

How to Get Your Deposit Back in New Mexico

  1. Provide your mailing address — Before move-out, ensure your landlord has your current mailing address for returning the deposit or itemized statement.

  2. Document the unit’s condition — Take detailed photos and video of every room and area at move-out showing the condition. Store these files securely.

  3. Keep your lease and correspondence — Maintain copies of your signed lease, move-in inspection reports (if any), and any written communications with the landlord.

  4. Watch the 30-day deadline — It runs from the termination of the rental agreement or your departure, whichever is later (§ 47-8-18(C)). If nothing arrives by day 30, the landlord has forfeited the right to withhold anything.

  5. Request the itemized statement — If the landlord does not provide the statement by the deadline, send a certified letter demanding it immediately.

  6. Review deductions carefully — Compare each claimed deduction against your documentation, move-in condition, and the lease terms. Identify any vague or excessive claims.

  7. Gather supporting evidence — Collect move-in photos, repair estimates, lease language, or written correspondence that contradicts claimed deductions.

  8. Send a demand letter — If deductions are unjustified or the deadline was missed, send a certified demand letter requesting return of the wrongfully withheld amount.

  9. File in small claims court — If the landlord does not respond, file in New Mexico magistrate court for the full deposit, your court costs and attorneys’ fees, and the $250 penalty if the retention was in bad faith.

  10. Bring evidence to court — Present your lease, photos, demand letter, and any other documentation supporting your claim.

Key Statute

N.M. Stat. Ann. § 47-8-18 — New Mexico’s security deposit law establishing the one-month cap for agreements under a year (A), the 30-day itemization duty measured from termination or departure, whichever is later (C), the forfeiture and fee-shifting remedy (D), and the flat $250 bad-faith penalty (E).

Real Situations in New Mexico

In Albuquerque, a tenant signed a six-month lease with a $1,200 monthly rent and paid a $1,200 security deposit (compliant with the 1-month cap for leases under 1 year). Upon move-out, the landlord returned the deposit after 28 days but claimed a $400 deduction for “paint touch-ups” without an invoice or receipt. The tenant objected in writing within 7 days, citing N.M. Stat. Ann. § 47-8-18. The landlord refused to provide documentation. The tenant sued in small claims court and recovered the wrongfully withheld $400 plus $250 in statutory damages plus attorney’s fees, totaling approximately $800.

A Las Cruces landlord rented a home to a tenant under a 2-year lease and collected a $2,500 deposit (no statutory cap applies to leases over 1 year). The landlord returned the deposit after 35 days (five days late) with a detailed itemization claiming $600 for carpet replacement and $400 for painting. However, the invoices were dated 10 days after move-out, and the contractor work had been performed on a different property. The tenant challenged both the late return and the fraudulent deductions. New Mexico courts take late returns and fraudulent claims seriously. The tenant recovered the $1,000 in wrongfully withheld amounts plus up to $250 in statutory damages plus attorney’s fees.

In Santa Fe, a tenant provided a forwarding address and moved out on the last day of the lease term. The landlord returned the deposit after 32 days with no itemization at all—just a check and a note saying “deposit returned.” Under § 47-8-18(D) the missing statement forfeits the landlord’s right to withhold any portion at all, and makes him liable for the tenant’s court costs and attorneys’ fees. The tenant could sue for this procedural violation alone and potentially recover statutory damages.

Common Mistakes New Mexico Tenants Make

Not verifying which deposit cap applies based on lease length. If your lease is for less than 1 year, the cap is 1 month’s rent. If it is for 1 year or longer, there is no cap. Before signing, calculate the cap and ensure the landlord’s deposit demand complies. If it exceeds the cap, object immediately and negotiate it down, or document the overage for later recovery.

Accepting deductions without itemization or refusing to provide itemization in writing. If the landlord returns the deposit without a written itemized statement, or if the statement is vague or undocumented, respond within 7 days with a certified letter demanding a detailed, documented itemization. A landlord’s failure to provide this is itself a violation of the law, separate from the merits of the deductions.

Not challenging late returns immediately. The 30-day deadline is strict. If the landlord returns the deposit on day 31 or later, send a certified letter within 5 days citing the deadline violation. The late return, even by one day, forfeits the landlord’s right to withhold anything under § 47-8-18(D) and carries your court costs and attorneys’ fees; the $250 penalty needs a finding of bad faith.


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