New Mexico Security Deposit Demand Letter — Force Your Landlord to Pay Up
New Mexico landlords must deliver a written itemized deduction statement and the balance due within 30 days of the tenancy's termination (NMSA 1978 § 47-8-18).
Miss that obligation and the law has teeth: Four-part forfeiture cascade. Miss the 30-day statement and balance, and § 47-8-18(D) strips the landlord of essentially everything: (1) the right to withhold any portion; (2) the right to assert any counterclaim in your recovery action; (3) liability for your court costs and attorney's fees; and (4) the right to bring a separate damages suit against you at all. Bad-faith retention adds a $250 civil penalty (§ 47-8-18(E)).
New Mexico's deposit law is specific. The rights worth knowing before you write:
The deadline: 30 days. New Mexico landlords must deliver a written itemized deduction statement and the balance due within 30 days of the tenancy's termination (NMSA 1978 § 47-8-18).
The penalty: Four-part forfeiture cascade. Miss the 30-day statement and balance, and § 47-8-18(D) strips the landlord of essentially everything: (1) the right to withhold any portion; (2) the right to assert any counterclaim in your recovery action; (3) liability for your court costs and attorney's fees; and (4) the right to bring a separate damages suit against you at all. Bad-faith retention adds a $250 civil penalty (§ 47-8-18(E)).
Itemization is mandatory. A written itemized list of each deduction, delivered with the balance. Nothing is deductible for normal wear and tear.
Worth knowing. Deposit cap: one month's rent on leases under a year; longer leases must be reasonable, with annual interest owed on amounts above one month. Owner-occupied buildings with two or fewer units are exempt.
What Your Landlord Can — and Can't — Keep
Legitimate deductions
Unpaid rent you actually owe
Cleaning needed to return the unit to its condition at move-in (minus ordinary wear)
Repair of damage beyond normal wear and tear — holes in walls, broken fixtures, pet damage
NOT legitimate deductions
Normal wear and tear — faded paint, minor scuffs, small nail holes, worn carpet from ordinary use
Repainting or re-carpeting due simply to age
Pre-existing damage that was there when you moved in
Charges with no itemization or receipts where NMSA 1978 § 47-8-18 requires them
📸 Your strongest evidence: Move-in and move-out photos. If your landlord claims damage that pre-dated your tenancy, time-stamped photos can end the argument before it starts.
How to Write a New Mexico Security Deposit Demand Letter
An effective letter does four things: states the facts, cites NMSA 1978 § 47-8-18 by name, makes a specific dollar demand with a firm deadline, and spells out the consequences if the landlord doesn't comply. The forfeiture cascade is the strongest procedural remedy in the country — a landlord who blows the deadline can't even countersue. One caution: make sure your own move-out notice was proper, since a tenant's notice failure can forfeit the deposit (Bruce v. Attaway). Here's how the opening of a strong one reads:
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New Mexico Demand Letter — Preview
[Your Name]
[Your New Address]
[City, NM ZIP]
[Date]
[Landlord Name]
[Landlord Address]
RE: Demand for Return of Security Deposit — [Former Property Address] — NMSA 1978 § 47-8-18
Dear [Landlord Name],
I am writing to formally demand the return of my $[AMOUNT] security deposit for the property at [ADDRESS], which I vacated on [MOVE-OUT DATE]. Under NMSA 1978 § 47-8-18, you were required to return my deposit and/or provide an itemized statement of deductions within the statutory deadline — 30 days. That deadline has not been met. As of today, [NUMBER] days have passed and I have received [neither / an improper statement]...
Accordingly, demand is hereby made for payment of $[AMOUNT], together with all statutory penalties described above, within ten (10) days of the date of this letter — no later than [RESPONSE DEADLINE]. If payment is not received by that date, I will file suit in small claims court without further notice, where I will seek the full statutory penalty, court costs, and every other remedy available under law. I would prefer to resolve this without litigation — but I am fully prepared to proceed.
Govern yourself accordingly,
[Your Name]
This preview stops here on purpose. Your complete, court-ready letter — customized to your exact situation, your numbers, and the deductions you're disputing, with the NMSA 1978 § 47-8-18 penalty language landlords take seriously — generates in 60 seconds.
If the Letter Doesn't Work: New Mexico Small Claims
Small claims court
Most deposit cases that get this far are filed in small claims court in the county where the rental sits — no attorney required. Bring the lease, move-in/move-out photos, your dated demand letter, and proof of delivery. The demand letter matters in court: it shows the judge you gave the landlord every chance to comply with NMSA 1978 § 47-8-18, and it anchors the penalty math — four-part forfeiture cascade.
Your county's tenant resources
Many New Mexico counties run free tenant help lines, legal-aid clinics, or court self-help centers that will review a deposit case at no charge. Search your county name plus “tenant legal aid” — and bring the same paper trail.
Ready to get your New Mexico deposit refunded?
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Landlords hand move-out balances to a small set of specialist collectors. If the letter is from National Credit Systems, Hunter Warfield, IQ Data International, or Source RM, we have a company-specific response guide for each — and the demand letter on this page still applies, because a landlord who missed the statutory deadline may owe you money regardless of who is calling. Any other collector: see the collection agency index and your state’s rules in the debt statute of limitations guide.
Need to send a formal notice instead — eviction, lease, or resignation? WriteMyNotice.com →