New Mexico is a one-party consent state for telephone calls: you may record a call you are part of, without telling the other person.
A phone recording you took part in is generally usable in a New Mexico custody matter, subject to the judge's view of relevance and authenticity. Courts have held the statute does not even reach in-person recordings (State v. Hogervorst), so treat the one-party call rule as the safer baseline.
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What one-party consent means in New Mexico
New Mexico is a one-party consent state for telephone calls. Under N.M. Stat. Ann. § 30-12-1 (“interference with communications”), it is unlawful to read, interrupt, take, or copy a telephone or telegraph message without the consent of “a sender or intended recipient” — but because only one of those two people needs to agree, your own consent as a party to the call is enough. You do not need to tell the other parent you are recording a call you are part of.
New Mexico’s rule for private citizens actually comes from how the underlying offense is defined: § 30-12-1 only criminalizes reading, copying, or taking a message “without the consent of a sender or intended recipient,” so your own consent as a party to the call means the offense’s consent element is never met in the first place. (The statute’s separate law-enforcement exception, which by its terms covers only “a person acting under color of law in the investigation of a crime,” is a different provision and does not apply to an ordinary parent.) Federal law (18 U.S.C. § 2511(2)(d)) reaches the same result: a participant may record without the other side's knowledge, so long as the purpose is not criminal or tortious.
A scope quirk worth knowing: the statute is written around wires, not people
Unlike most one-party states, New Mexico's wiretap statute is written narrowly around the physical medium: it prohibits tapping or copying a message sent over a “telegraph or telephone line, wire, cable or instrument.” That language has produced two important limits. First, a New Mexico appellate court held in State v. Hogervorst, 566 P.2d 828 (N.M. Ct. App. 1977), that the statute does not reach in-person conversations at all — secretly recording a face-to-face conversation is not the kind of “eavesdropping” the statute criminalizes. Second, because the statute’s wording focuses on wire-based lines, it is not fully settled whether the same one-party consent requirement even applies to cellphone-to-cellphone calls or texts between wireless devices — New Mexico courts have not clarified the point. The prudent approach for a co-parent is not to lean on that ambiguity: treat any call, cellphone or landline, as covered by the one-party rule, and record only calls you are actually part of.
The penalty: a misdemeanor, plus civil exposure
Recording a telephone conversation without the consent of at least one party is a misdemeanor under § 30-12-1 — a notably lighter criminal exposure than the felony penalties many neighboring states impose. That does not mean it is risk-free. New Mexico's § 30-12-11 gives the person who was illegally recorded (or whose recorded conversation was disclosed) a civil cause of action: they can recover the greater of their actual damages, $100 for each day of the violation, or $1,000, plus punitive damages, attorney’s fees, and court costs. The New Mexico Supreme Court has also held, in Arnold v. State, 94 N.M. 381, 610 P.2d 1210 (N.M. 1980), that the same consent requirement that governs recording also governs disclosing the contents of an illegally recorded call — so sharing a call you had no right to record can expose you independently.
Where the participant exception stops
The one-party rule only protects you when you are actually on the call. Tapping a line you are not a party to, or recording someone else’s conversation without either person’s consent, falls outside the exception. And as with every one-party state, consent is not a shield if the purpose of the recording is itself unlawful — the exception exists to let you document your own conversations, not to launder a scheme to harass, intimidate, or extort your co-parent.
Using a recording in a New Mexico custody case
A phone call you took part in is generally usable as evidence in a New Mexico domestic-relations matter, but the judge decides what actually comes in, weighing relevance and authenticity. Because New Mexico's statute does not clearly reach in-person conversations, some parents assume any face-to-face recording is automatically fair game — but a lawful right to record does not guarantee a court will find it persuasive or even relevant. Keep the original audio untouched, log the date, time, and who was on the call, and never edit the file: an altered recording invites a credibility fight that can undermine the rest of your case, not just that one exhibit.
Calling a co-parent in another state? Follow the stricter rule
New Mexico's one-party rule (and its wire-based scope quirk) only controls what New Mexico law requires. If your co-parent is physically in an all-party consent state — California, Florida, Illinois, and others — when the call happens, that state's stricter rule may apply to the same call, and it is not always obvious in the moment which state actually governs a cross-border cell call. When you are not certain where the other parent is, the safest, court-friendly habit is to assume the strictest applicable rule — all-party consent — and announce that you are keeping a record. An announced, dated archive is lawful everywhere, regardless of which state's law technically controls.
How to document it so it holds up
Beyond the call itself, the strongest record is consistent and unedited: preserve full message threads instead of cropped screenshots, attach a verifiable date and time to every entry, and keep a copy somewhere your co-parent cannot alter or delete. A continuous, time-stamped history is far harder for the other side to dispute in front of a New Mexico judge than a single recording presented without context.
Bottom line
In New Mexico, you may lawfully record a phone call you are part of without announcing it, but the statute's narrow wording around telephone lines leaves real gray areas for cellphone calls and no coverage at all for in-person conversations. When in doubt, announce the recording anyway — it is lawful everywhere and removes any question about how the evidence was obtained.
Do I need to tell my co-parent I am recording our phone call in New Mexico?
No. As a party to the call, your own consent satisfies § 30-12-1's one-party requirement. You are not required to announce it, though announcing remains the safer choice if your co-parent might be calling from a different state.
Is it legal to secretly record an in-person conversation with my co-parent in New Mexico?
New Mexico courts have held the wiretap statute does not reach in-person conversations at all (State v. Hogervorst), so it is not criminalized by § 30-12-1. That is a narrow reading of one specific statute, not a green light — talk to a licensed attorney before relying on it in a custody dispute.
What is the penalty for illegally recording a phone call in New Mexico?
It is a misdemeanor under § 30-12-1. The person recorded can also sue civilly under § 30-12-11 for the greater of actual damages, $100 per day of violation, or $1,000, plus punitive damages and attorney's fees.
Can I share a recording of my co-parent with my attorney or the court?
If you lawfully recorded the call as a participant, sharing it with your attorney or the court is part of normal case preparation. But New Mexico's Supreme Court has held the consent requirement also covers disclosure of an illegally recorded call (Arnold v. State, 94 N.M. 381), so a recording you were not entitled to make in the first place carries added risk if you share it.
Not legal advice. This page summarizes New Mexico law for general information as of 2026-07-18 and is not a substitute for advice from a licensed New Mexico attorney. Recording and evidence rules change and courts decide admissibility case by case. Verify against the official statute (N.M. Stat. Ann. § 30-12-1) and consult an attorney about your situation.
Whatever state you or your co-parent call from, the calls and texts that happen outside any shared co-parenting app are usually where high-conflict disputes actually play out. Copareo Secure Line analyzes, transcribes, and time-stamps those exchanges into an organized, tamper-evident record with an admissibility one-pager for your attorney — a one-time $9.90, with no subscription and nothing to cancel. For the full 50-state picture, see our call recording laws by state guide, and for the complete system for building a court-ready record, see how to document co-parenting for court.