Security Deposit Demand Letters
New Mexico · N.M. Stat. § 47-8-18

The New Mexico security deposit demand letter that gets deposits back.

Need a New Mexico security deposit demand letter? Your landlord had to return it or itemize within 30 days after termination. Miss that, and N.M. Stat. § 47-8-18 is written on your side.

Put them on notice
No card to start. $20 at the end, once you have read the whole thing.
30
days to return or itemize
Penalties
for non-compliance
$20
letter + certified mail, one-time

Last updated September 2026 · statute source checked August 29, 2026

Statute · New Mexico
N.M. Stat. § 47-8-18
Itemized deduction statement required. Read N.M. Stat. § 47-8-18 on the official state site →
Verified 2026-08-29

How we build this letter → Statute checked against N.M. Stat. § 47-8-18 on the state's own site. We do not publish figures we cannot read at the source.

Worked example

What that means in dollars

Noncompliance forfeits the landlord's right to withhold any portion of the deposit AND to assert any counterclaim in a suit to recover it, and makes the landlord liable for court costs and reasonable attorney's fees. Most landlords understand what non-compliance costs, which is why a letter citing N.M. Stat. § 47-8-18 is often enough to get a check without going to court.

Calculate your own numbers →

What non-compliance costs

Noncompliance forfeits the landlord's right to withhold any portion of the deposit AND to assert any counterclaim in a suit to recover it, and makes the landlord liable for court costs and reasonable attorney's fees.

What you get for $20

The letter is written from your answers and New Mexico's own statute, and you see all of it before you pay. Signing sends it: printed, mailed certified, tracked, and returned to you as a signed PDF with proof of what it said and when.

How it works covers every step, and what it costs to do the same thing alone.

Have it mailed, not downloaded.$20 covers the letter, the printing, the certified postage, and the return receipt — and you read every word before you pay.
Read my New Mexico letter
On the last page of your letter

The bit that stops them arguing

Not a logo that says “verified.” A short record of how and when you signed, printed on the letter your New Mexico landlord is holding, plus a code made from the letter's own words.

  • The demand paragraph
  • The signature record
  • The SHA-256 hash
  • Certified Mail with Return Receipt
Pin 1 · The demand paragraphThe paragraph names your state's statute, the amount your landlord kept, the deadline they missed, and gives them a firm deadline to send the money before the letter says what happens next. Every part of it comes from the answers you gave, printed in the order the law expects.
Pin 2 · The signature recordMethod (drawn or typed), date, time zone, IP, browser, and consent to sign electronically. Printed on the letter itself, so the person receiving it can see how it was signed. Nothing goes out until a real person signs.
Pin 3 · The SHA-256 hashA 64-character code built from every word in your letter, recorded with the date and time you signed. It is your signing record: paste it into the checker at /verify/ and it confirms the wording you hold is the wording you signed, unchanged. It is not proof of delivery; the certified mail record below is.
Pin 4 · Certified Mail with Return ReceiptSomeone at the other end has to sign. This is the proof: the certified mail receipt, the USPS tracking history, and the delivery signature with its date. The Postal Service records them, our mail partner passes them to us, and we email them to you and post them on your letter tracker. Your landlord cannot claim the letter never came.

The closing words above are the real ones our engine writes for New Mexico letters, statute and deadline included. The name, signature and codes are made up; yours carry your own record. The time is shown in the signer's own time zone, not ours.

That code is built from every word in your letter. Change one word and it no longer matches. Type it into our checker and it tells you the letter is the same one you signed. Run the example code through the checker →

How your New Mexico letter works

The short version, in three steps

01

Answer a few questions

Your deposit, dates, landlord's address, and what happened. About 5 minutes.
02

See your exact letter

A formal demand citing N.M. Stat. § 47-8-18 and the deadline your landlord missed, reviewed by you before anything mails.
03

We mail it certified

USPS Certified Mail with Return Receipt. Somebody has to sign for it, and you get a copy of that signature. That is your proof of delivery if this ends up in small claims court.
Skip the trip to the Post Office.$20 covers the letter, the printing, the certified postage and the return receipt. No stamps, no green card to fill in wrong, no queue.
Read my New Mexico letter

How the New Mexico clock actually runs

Deadlines in deposit law are unforgiving in one direction and vague in the other, so it is worth being exact about how this one runs.

In New Mexico the window is 30 days, and it starts after termination. Read that carefully: the start date is doing real work.

  • Measure from possession, not from the lease end date. Leases end on paper; tenancies end when the keys change hands. Where those are different days, it is usually the second one that matters.
  • A missed deadline does not expire your claim. It is the landlord’s obligation that was late, not your right that lapsed. Renters routinely assume that being weeks past the date means they have lost their chance. The opposite is closer to the truth.

The New Mexico detail most renters never find

There is a New Mexico-specific limit sitting behind all of this that a lot of renters never learn about:

Deposit capped at one month's rent for leases under a year.N.M. Stat. § 47-8-18 · general legal information, not legal advice

Go and look at your lease now. Renters rarely question a deposit demand at the point they are desperate for somewhere to live, and a charge that seemed normal at signing sometimes turns out not to have been permitted at all.

What you can actually ask for in New Mexico

Most renters ask for their deposit back and stop there. New Mexico law generally has more to say about a landlord who gets this wrong.

Noncompliance forfeits the landlord's right to withhold any portion of the deposit AND to assert any counterclaim in a suit to recover it, and makes the landlord liable for court costs and reasonable attorney's fees.N.M. Stat. § 47-8-18 · general legal information, not legal advice

The figure matters less than the specificity. A precise sum, with a date and a citation behind it, is answerable; a complaint is not.

New Mexico also sits in the minority of states where a deposit is not simply held: interest forms part of what is owed. Renters almost never raise it and landlords almost never offer it, so it is quietly one of the sums renters most reliably never ask for. Over a tenancy of several years it stops being trivial.

Courts decide actual awards, and statutes carry conditions and exceptions. What the statute names is the most a judge may award on the right facts, never a promise about your letter.

Read the whole letter first.Reading your New Mexico letter costs nothing. You decide after you have seen it.
Read my New Mexico letter

What to do first

Do these five things before you send anything. They cost you an evening and they are what a demand letter stands on.

  1. Pin down the day possession actually changed hands. Not the date on the lease. The day you returned the keys or the access codes stopped working. Every deadline here is measured from a date, and this is the first one anybody will ask you to prove.
  2. Prove you told them where to send it. “They knew my new address” is not evidence; a dated message containing the address is. If you can't find one, that gap is worth closing now rather than discovering it later.
  3. Do not throw away a bad itemization. A thin one is evidence in your favor: it locks the landlord into a story before they have seen your photographs, and stories are much harder to revise once they are in writing.
  4. Rescue your moving day photographs from your phone. The original files carry the date inside them, which is what makes them worth anything. Copies of copies lose that, and phones are not archives.
  5. Answer a short payment in writing. Take the money if you need it, but put on record that it does not close the matter. Otherwise the payment itself becomes their best piece of evidence.

What is typically at stake in New Mexico

The size of the money involved is worth stating plainly. Median gross rent in New Mexico runs about $1,067 a month, and roughly 30% of households, some 251,477 of them, rent rather than own (ACS 2024 5-year). Where a deposit is set around a month’s rent, a typical New Mexico deposit lands near $1,067.

The gap between what that sum means to each side is the entire problem. Politeness does not close it, and neither does persistence. A dated, certified, statute-citing demand does, because it introduces a cost to doing nothing.

Where a New Mexico deposit case goes if the letter does not work

Most letters never see a courtroom. That is rather the point of sending one. But the letter borrows its weight from what sits behind it.

In New Mexico that is the Magistrate Court (Metropolitan Court in Bernalillo County). At $10,000, the court's limit sits well clear of a typical New Mexico deposit, so for most renters it is not the constraint. Proving the number is.

This forum is built for people without lawyers: simplified filing, relaxed evidence rules, and judges used to hearing renters directly. You normally file where the property is or where the landlord can be found, pay a filing fee that is a small fraction of the claim, and arrange formal service. Filing fees, service rules and local procedure are set by the court rather than by us. The New Mexico judiciary publishes its own small claims instructions and forms, and that is the page to read before you file.

These hearings are won on paper, not argument. Lease, photographs, address proof, whatever accounting they did or did not send, and a letter you can prove arrived on a particular day. Renters who lose usually lose the last one.

Have it mailed, not downloaded.$20 covers the letter, the printing, the certified postage, and the return receipt — and you read every word before you pay.
Read my New Mexico letter
New Mexico by the numbers

How New Mexico compares to the other 50

Forfeiture
miss the rules and the landlord loses the right to keep any of the deposit
30 days
to act. Only 14 states give landlords less time
$1,100
typical New Mexico deposit, about one month's median rent
$10,000
Magistrate Court (Metropolitan Court in Bernalillo County) limit. Deposit claims fit easily, and no lawyer is required

Median gross rent in New Mexico runs $1,067 a month, and ≈251,000 households here rent rather than own, 30% of every household in the state. All of them are on the same 30-day clock you are.

Sources: U.S. Census Bureau, ACS 2024 5-year, tables B25064 & B25003; N.M. Stat. § 47-8-18. Comparisons computed across all 50 states + DC from our source-checked statute dataset. Statutory figures are ceilings, and courts decide actual awards.

New Mexico landlords owe interest on your deposit

N.M. Stat. Ann. § 47-8-18

Interest once a year, at least matching what a basic savings account pays. (The statute calls this the “passbook” rate, an old banking term for an ordinary savings account.)

Applies when: Required only where the deposit exceeds one month's rent AND the lease term is one year or longer.

See what your deposit interest is worth → · your letter demands it automatically.

New Mexico deposit questions

New Mexico deposit questions, answered

How long does a landlord have to return a security deposit in New Mexico?
Under N.M. Stat. § 47-8-18, the landlord generally must act within 30 days after termination. If the landlord keeps any portion, an itemized written statement of deductions is required. This is general legal information. The statute contains conditions and exceptions.
What happens if my landlord misses the New Mexico deadline?
Noncompliance forfeits the landlord's right to withhold any portion of the deposit AND to assert any counterclaim in a suit to recover it, and makes the landlord liable for court costs and reasonable attorney's fees. A written demand letter that cites N.M. Stat. § 47-8-18 puts the landlord on notice that you know the rules they broke and what the statute allows you to pursue.
How do I write a security deposit demand letter in New Mexico?
A security deposit demand letter for New Mexico needs five things. Your tenancy facts (address, move out date, deposit amount), the statute citation (N.M. Stat. § 47-8-18), the deadline the landlord missed, the remedies the statute allows, and a clear payment demand with your forwarding address. Our free annotated New Mexico sample letter shows the full structure. Or answer a few questions and we generate yours with your facts and mail it certified.
Does my landlord owe me interest on my security deposit in New Mexico?
Yes. New Mexico requires it under N.M. Stat. Ann. § 47-8-18: Interest once a year, at least matching what a basic savings account pays. (The statute calls this the “passbook” rate, an old banking term for an ordinary savings account.) Required only where the deposit exceeds one month's rent AND the lease term is one year or longer. Renters almost never ask, which is exactly why landlords almost never pay. Our demand letter cites that provision and demands accrued interest along with the deposit itself.
Do I need a lawyer to send a demand letter in New Mexico?
No. A demand letter is something any tenant can send on their own behalf. If it comes to suing, deposit cases in New Mexico go to the Magistrate Court (Metropolitan Court in Bernalillo County), which is built for people without lawyers and hears claims up to $10,000. Our service prepares the letter from the facts you provide and the current text of N.M. Stat. § 47-8-18, and mails it by USPS Certified Mail so you have proof of delivery. If your dispute is complex or high-value, talking to a licensed New Mexico attorney is a sensible next step. Several statutes shift attorney's fees to the landlord.

General legal information about N.M. Stat. § 47-8-18, not legal advice. Statutes contain conditions and exceptions, so always check the official text of N.M. Stat. § 47-8-18.

If the letter doesn’t work: filing in New Mexico

Where a New Mexico claim is filed

A New Mexico security deposit claim that does not settle is filed in the Magistrate Court (Metropolitan Court in Bernalillo County), which hears claims up to $10,000.

The court hears claims up to $10,000. There is no statutory multiplier here, so the claim is the deposit itself plus anything else the statute allows.

The claim rests on N.M. Stat. § 47-8-18. New Mexico’s deposit statute can shift attorney’s fees to the landlord, which matters even if you never hire one. Filing fees, forms and service rules are the court’s, not ours: the New Mexico judiciary’s own small claims instructions are the authority to check before filing.

How much can I sue my landlord for in New Mexico small claims court?
The Magistrate Court (Metropolitan Court in Bernalillo County) hears claims up to $10,000. Your claim is the withheld deposit plus whatever N.M. Stat. § 47-8-18 allows on top: the statutory remedies for non-compliance, plus any statutory interest owed under N.M. Stat. Ann. § 47-8-18. The court hears claims up to $10,000.

General legal information, not legal advice. Court limits and procedures change; confirm with the clerk or a licensed New Mexico attorney before filing.

Skip the trip to the Post Office.$20 covers the letter, the printing, the certified postage and the return receipt. No stamps, no green card to fill in wrong, no queue.
Read my New Mexico letter
New Mexico · Renter guides

Before the letter: the arguments you are about to have

A demand letter is stronger when you already know which of the landlord's charges are defensible and which are not. New Mexico requires them to itemize, so you have something concrete to test against these four.

Deductions The four things a deposit can legally cover An itemized statement is only as good as the charges on it. Unpaid rent and genuine damage are fair game. A great deal of what gets billed is neither. Read the guide → Wear and tear The line landlords blur most often Carpet, paint and fixtures all have expected lifespans, and a deposit is not meant to reset them. Knowing that changes how a deduction list reads. See the line → Evidence Document the move-out properly The evidence you will need does not exist yet, and the last day of a tenancy is the only day you can create it. Get the checklist → No response Your landlord has gone quiet Most renters read a missed deadline as their own failure. It is the landlord's obligation that lapsed, not your right. What to do →

Arguing about one specific charge?

Charged for cleaningPaint chargesBilled for new carpetHanging picturesDamage the pet is blamed for

Or put every line item into the New Mexico deduction checker at once.

Neighboring states · Same problem, different math

Where else this letter works

Arizona14 daysAriz. Rev. Stat. § 33-1321 · 2×Colorado30 daysColo. Rev. Stat. § 38-12-103 · 3×Oklahoma45 days41 Okla. Stat. § 115Texas30 daysTex. Prop. Code § 92.103, § 92.109 · 3×Utah30 daysUtah Code § 57-17-3All 50 states + DCSee the map →Deadline & penalty by state
New Mexico cities

Deposit rules where you actually rent

The statute is the same everywhere in New Mexico. What it is worth is not. Start with Albuquerque security deposit demand letters.

AlbuquerqueBernalillo CountyMagistrate Court (Metropolitan Court in Bernalillo County) · $10,000 limitAll 102 citiesSee the map →Local court, local rent, local statute
Albuquerque

Want to see the finished product first? Read an annotated sample demand letter, or see how New Mexico ranks nationally on the Security Deposit Penalty Index.

Moved out of state since? We send security deposit demand letters for renters outside New Mexico in all 50 states and the District of Columbia, each with its own statute and its own deadline math.

New Mexico · Free help

Where New Mexico renters can get help for nothing

Deposit disputes are one of the most common things New Mexico legal aid offices hear about. If you would rather ask a person than read a statute, start with these.

Government and nonprofit resources, listed because they are useful. We are not affiliated with any of them, and none of them is affiliated with us. Every link here was checked on August 30, 2026.

The deadline already passed. Send the letter.

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