Process Serving in New Mexico

New Mexico civil cases may be heard in District Courts, which have general jurisdiction, and in courts with limited civil jurisdiction, including magistrate courts and Bernalillo County Metropolitan Court. Municipal courts handle specified local violations rather than general civil lawsuits. Service requirements depend on the court and case: District Court civil cases follow Rule 1-004 NMRA, while magistrate and metropolitan cases use their own rules, including Rules 2-202 and 3-202 NMRA. The rules differ on methods such as abode service, posting, and mail, so check the rule and summons for the specific court and case before arranging service. District Court Rule 1-004 requires reasonable diligence; magistrate and metropolitan rules also require prompt or reasonably diligent service. Court Runner USA connects you with process servers who serve papers across New Mexico.

General information, not legal advice. Last checked October 2026.

Sources:

• About the Courts — New Mexico Courts
• Rule 1-004 NMRA
• Rule 3-202 NMRA

For a District Court summons and complaint, a person over 18 who is not a party may serve process (Rule 1-004(D)(1) NMRA). For magistrate and metropolitan civil cases, service may be made by the county sheriff where the defendant may be found or another person over 18 who is not a party; special rules apply to certain writs (Rules 2-202(D), 3-202(D) NMRA). These rules do not state a general process-server license, residency, or appointment requirement for ordinary summons-and-complaint service. Check the rule for the court and type of process.

Sources:

• Rule 1-004 NMRA
• Proposed revisions to Rule 2-202 NMRA (Proposal 2026-009)
• Rule 3-202 NMRA

In District Court, an individual may be served personally, or by mail or commercial courier if the defendant or an authorized recipient signs for the package. After an attempt under either personal service or signed mail/courier service, a copy may be left with a resident over 15 at the defendant’s usual abode and a copy mailed first class to the defendant’s last known mailing address. Only after the specified earlier methods fail may papers be delivered to the person apparently in charge at the defendant’s actual workplace, with copies mailed both to the last known address and workplace (Rule 1-004(E)–(F) NMRA). On a motion and the required showing, a court may authorize service by email, text, social media, or another method. The rule sets requirements for authorized electronic service, including repeat transmissions and first-class mailing. Publication requires a court order and ordinarily runs once a week for three consecutive weeks (Rule 1-004(F)(4), (J)–(K) NMRA).

The magistrate rule text in the official 2026 proposal describes personal service, abode service, and—if nobody is available or willing—posting in the most public part of the premises and mailing copies to the defendant’s last known address. It also describes mail service using a notice-and-acknowledgment process (Rule 2-202(E)–(F) NMRA). Metropolitan Court permits personal service, abode service, posting and mailing when no one is available or willing, and specified mail or commercial-courier service (Rule 3-202(E)–(F) NMRA). For entities, serve an officer, managing or general agent, authorized agent, or general partner as applicable (Rules 1-004(G), 2-202(F)(2), 3-202(F)(2) NMRA). Metropolitan Court publication is not permitted except where law provides for it in attachment or replevin cases (Rule 3-202(H) NMRA).

Sources:

• Rule 1-004 NMRA
• Proposed revisions to Rule 2-202 NMRA (Proposal 2026-009)
• Rule 3-202 NMRA

District Court Rule 1-004 requires service with reasonable diligence; its commentary explains that it sets no specific number of days for service (Rule 1-004(C)(2) NMRA). The District Court summons directs a defendant to respond within 30 days after service (Rule 1-004(B)(2) NMRA). The Supreme Court-approved civil summons for magistrate and metropolitan courts directs a written response within 20 days after service (Form 4-204 NMRA). The metropolitan mail-and-acknowledgment method has a separate acknowledgment period: if none is received within 20 days after mailing, plus three days under Rule 3-104, service must instead be made by an authorized person (Rule 3-202(E) NMRA). Magistrate service is described as prompt and reasonably diligent in the rule text reproduced in Proposal 2026-009; confirm the effective text and any mail-service deadline before relying on it.

Sources:

• Rule 1-004 NMRA
• Civil summons, Form 4-204 NMRA
• Rule 3-202 NMRA
• Proposed revisions to Rule 2-202 NMRA (Proposal 2026-009)

A District Court summons and complaint must be served by a nonparty over 18. Metropolitan Court process ordinarily must be served by a nonparty, except for its mail method; the magistrate rule text reproduced in the 2026 proposal likewise requires a nonparty except for its mail method (Rules 1-004(D)(1), 2-202(D), 3-202(D)–(E) NMRA). District Court rules direct service on a minor’s guardian or conservator, if appointed; otherwise on each person with legal authority over the minor, or on a court-designated person if none exists. For an incompetent person, serve the guardian or conservator, or seek a court-designated method if none exists (Rule 1-004(I) NMRA). District Court rules specify service recipients for public entities, including the Governor and Attorney General for the State, the relevant agency head and Attorney General for a state agency, the county clerk for a county, the city, town, or village clerk for a municipal corporation, and the superintendent for a school district or board (Rule 1-004(H) NMRA). The cited civil service rules do not address Sunday or holiday service; confirm any applicable statute or case-specific restriction.

Sources:

• Rule 1-004 NMRA
• Proposed revisions to Rule 2-202 NMRA (Proposal 2026-009)
• Rule 3-202 NMRA

In District Court, the party obtaining service or its agent must promptly file proof. A New Mexico sheriff or deputy uses a certificate; another server uses an affidavit. Signed-mail or courier service requires a certificate stating the delivery date and attaching the defendant’s signature receipt. The rule also specifies affidavit contents for electronic service and publication (Rule 1-004(L) NMRA). In Metropolitan Court, the sheriff or deputy uses a certificate and another server uses an affidavit; mail service requires filing the acknowledgment or, for signed-receipt mail/courier, a certificate with the delivery date and receipt. Proof must be made promptly and within the time the person served has to respond (Rule 3-202(G) NMRA). Form 4-204 provides a sworn return; its use note says a New Mexico sheriff or deputy need not have the signature notarized. The magistrate return requirements appear in the rule text reproduced in Proposal 2026-009 and should be checked against the effective rule (Rule 2-202(G) NMRA).

Sources:

• Rule 1-004 NMRA
• Civil summons, Form 4-204 NMRA
• Rule 3-202 NMRA
• Proposed revisions to Rule 2-202 NMRA (Proposal 2026-009)