New Mexico Demand Letter
New Mexico's Unfair Practices Act private-remedies section has no pre-suit notice step, but the state layers its own bad-check demand statute, a time-barred-debt disclosure rule, and a 2025 magistrate court pleading rule onto this letter.
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What is this demand about?
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Introduction
NMSA 1978 Section 57-12-10, the private-remedies section of New Mexico's Unfair Practices Act, contains no requirement to send a written notice before a consumer sues for damages: it lets any person who suffers a loss from an unfair, deceptive, or unconscionable trade practice, including one in extending credit or collecting a debt, bring a private damages action, unlike Texas, Massachusetts, or California. But if your claim involves a dishonored check, New Mexico's civil bad-check statute, NMSA 1978 Section 56-14-1, lets you recover its statutory damages, $100 or triple the amount of the check, whichever is greater, only if you first send a written demand by certified mail to the drawer's last known address, marked "deliver to addressee only," made at least 10 days before you file suit, and stating that triple damages may follow if the check is not paid within those 10 days. Separately, New Mexico's Unfair Practices Act reaches a business collecting its own customers' debts, not just a third-party collection agency, and an Attorney General rule, 12.2.12 NMAC, requires a debt collector, meaning a person collecting a debt in the regular course of trade or commerce, who knows or has reason to know a debt is outside the statute of limitations to give the consumer a specific written disclosure, on the front page of any written collection communication, before collecting it. If you are a business suing on a consumer debt in Magistrate Court, a New Mexico Supreme Court rule amended in October 2025, Rule 2-201(E) NMRA, requires that when a written instrument is the basis of the claim, the original or a copy of it be served with the pleading and filed with the court. If your claim is for a security deposit or a final paycheck, use DocDraft's security deposit demand letter or final paycheck demand letter pages, which are built around those specific statutes. This page builds an ordinary demand letter into New Mexico law, with attorney review available before you send it.
Key Things to Know
- 1
NMSA 1978 Section 57-12-10, the private-remedies section of New Mexico's Unfair Practices Act, contains no requirement to send written notice before suing for damages: it lets any person who suffers a loss from an unfair, deceptive, or unconscionable trade practice, including one in extending credit or collecting a debt, bring an action, unlike Texas, Massachusetts, or California.
- 2
If your claim involves a dishonored check, New Mexico's civil bad-check statute, NMSA 1978 Section 56-14-1(A)-(B), lets you recover $100 or triple the amount of the check, whichever is greater, capped so total damages do not exceed the check amount by more than $500, but only if you first send a written demand by certified mail to the drawer's last known address, marked "deliver to addressee only," made at least 10 days before you file suit and stating that triple damages may follow if the check is not paid within those 10 days.
- 3
New Mexico's Unfair Practices Act reaches a business collecting its own customers' debts, not only a third-party collection agency: New Mexico Attorney General rule 12.2.12 NMAC defines a covered "debt collector" to include the original creditor, meaning a person collecting a debt in the regular course of trade or commerce, and requires a debt collector who knows or has reason to know a debt is outside New Mexico's statute of limitations to give the consumer a specific written disclosure, in the form the rule prescribes, on the front page of any written collection communication, before attempting to collect it.
- 4
New Mexico's Unfair Practices Act lets a court award treble (up to three times) actual damages or $300, whichever is greater, but only if the violation is found willful; the baseline recovery for a non-willful violation is actual damages or $100, whichever is greater, and a prevailing plaintiff's attorney fees are mandatory under NMSA 1978 Section 57-12-10(B)-(C), while a prevailing defendant recovers fees only if the court finds the plaintiff's action was groundless.
- 5
If you are a business suing on a consumer debt in New Mexico's Magistrate Court, a New Mexico Supreme Court rule amended in October 2025, Rule 2-201(E) NMRA, applies to a collection action by a party acting in the ordinary course of business on a debt primarily for personal, family, or household purposes; when a written instrument is the basis of that claim, the original or a copy must be served with the pleading and filed with the court, and noncompliance can let the defendant reopen a default judgment under Rule 2-703(B)(5) NMRA.
- 6
New Mexico's Magistrate Court, or the Metropolitan Court in Bernalillo County, hears civil claims up to $10,000, exclusive of interest and costs, under NMSA 1978 Section 35-3-3(A)-(C); New Mexico gives six years to sue on a written contract (Section 37-1-3(A)) and four years to sue on an oral contract, an open account, or a property-damage claim, all under the same statute, Section 37-1-4, and sets post-judgment interest by default at 8.75 percent a year from entry of judgment, or at a written instrument's own rate if that is lower (Section 56-8-4(A)), which does not start running because you sent a demand letter.
- 7
Never threaten arrest, jail, or criminal prosecution to collect a civil debt. New Mexico's Unfair Practices Act broadly bars an unfair, deceptive, or unconscionable trade practice in extending credit or collecting a debt, including by a creditor collecting its own debt, under NMSA 1978 Section 57-12-2(D)-(E), and a knowing false threat could qualify as one.
Key decisions before you file
Before you file a Demand Letter in New Mexico, a few decisions shape the document: which option to choose and what each one means. The Demand Letter guide walks through them.
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New Mexico Requirements for Demand Letter
No Notice Step in the UPA Private-Remedies Section
NMSA 1978 Section 57-12-10, the Unfair Practices Act's private-remedies section, lets any person who suffers a loss from an unfair, deceptive, or unconscionable trade practice, including one in extending credit or collecting a debt, bring a private damages action and contains no written-notice-before-suit requirement, unlike Texas, Massachusetts, or California consumer-protection statutes.
Bad-Check Demand Precondition
NMSA 1978 Section 56-14-1(A) allows New Mexico's bad-check civil damages only if the creditor first sends a written demand and the drawer fails to tender payment before suit is filed; skipping the demand forfeits this statutory remedy.
Bad-Check Demand Content and Delivery
NMSA 1978 Section 56-14-1(B) requires the bad-check demand to be sent by certified mail to the drawer's last known address, marked "deliver to addressee only," made at least 10 days before filing suit, and to state that triple damages may result if the check is not paid within those 10 days.
Bad-Check Damages Amount and Cap
NMSA 1978 Section 56-14-1(A) sets bad-check damages at $100 or triple the amount of the check, whichever is greater, capped so the total cannot exceed the check amount by more than $500.
Time-Barred Debt Disclosure for First-Party Creditors
New Mexico Attorney General rule 12.2.12 NMAC defines "debt collector" as a person collecting a debt in the regular course of trade or commerce, including a creditor collecting its own debt, and requires a debt collector who knows or has reason to know a debt is outside New Mexico's statute of limitations to give the consumer a specific written disclosure, in the form the rule prescribes, on the front page of any written collection communication, before attempting to collect it; failing to do so is itself an unfair or deceptive trade practice under the Unfair Practices Act.
UPA Treble Damages Require Willfulness
NMSA 1978 Section 57-12-10(B) lets a court award treble (up to three times) actual damages or $300, whichever is greater, only if the violation is found willful; a non-willful violation recovers actual damages or $100, whichever is greater, and Section 57-12-10(C) makes a prevailing plaintiff's attorney fees mandatory, with a prevailing defendant recovering fees only if the plaintiff's action was groundless.
Magistrate Court Original-Instrument Pleading Rule
New Mexico Supreme Court Rule 2-201(E) NMRA, amended in October 2025, covers a Magistrate Court collection action by a party acting in the ordinary course of business on a consumer debt; when a written instrument is the basis of the claim, the original or a copy must be served with the pleading and filed with the court. Rule 2-703(B)(5) NMRA lets a defendant obtain relief from a default judgment for noncompliance.
Magistrate Court Jurisdiction Limit
New Mexico's Magistrate Court, or the Metropolitan Court in Bernalillo County, hears civil claims up to $10,000, exclusive of interest and costs, under NMSA 1978 Section 35-3-3(A)-(C); New Mexico has no separate small claims division.
Statute of Limitations and Post-Judgment Interest
New Mexico gives six years to sue on a written contract under NMSA 1978 Section 37-1-3(A), and four years to sue on an oral contract, an open account, or a property-damage claim under the same statute, Section 37-1-4; post-judgment interest defaults to 8.75 percent a year from entry of judgment, or a written instrument's own rate if lower, under Section 56-8-4(A).