What Documents Do You Need for New Mexico Small Claims Court?

Documents for Each Stage of Your Case

A small claims case in New Mexico moves through distinct stages, and each one requires specific paperwork. Missing a form or forgetting an exhibit can delay your case or weaken your position at the hearing. Here's what you need and when you need it.

Stage 1: Before Filing

Demand letter (recommended for general claims; required for some statutory claims). A written demand sent to the other party by certified mail with return receipt requested. Include the amount owed, the basis for the claim, an itemized breakdown of damages, and a deadline to respond (10–14 days is standard). Keep a copy of the letter and the certified mail receipt — both become evidence.

Entity verification. If you're suing a business, search the New Mexico Secretary of State's online business portal. You need the exact registered entity name and the registered agent's address. Suing "Joe's Plumbing" when the registered name is "Joseph Smith Plumbing Services, LLC" can create enforcement problems.

Statute of limitations check. Confirm your claim falls within the filing window: 6 years for written contracts, 4 years for oral contracts and property damage, 3 years for personal injury.

Stage 2: Filing the Complaint

Form 4-201 (Magistrate Court, outside Bernalillo County) or Form 4-202 (Metropolitan Court, Bernalillo County). This is your civil complaint — it names the parties, states the amount claimed (up to $10,000), and briefly describes the facts of the dispute.

Form 4-204 (Civil Summons). Filed with the complaint. The clerk signs it and issues it back to you for service on the defendant.

Application for Free Process (if you can't afford the $77 filing fee). This asks for household income, assets, and liabilities. If approved, the court waives docket fees, summons costs, and sheriff service fees.

Exhibit attachments. Attach copies of key evidence to your complaint — the contract, unpaid invoices, photos of damage, or written communications. These are informational at this stage; you'll present originals at the hearing.

Stage 3: Service of Process

Return of Service. After the defendant is served (by sheriff, process server, or certified mail), the person who performed service completes the Return of Service section on the back of Form 4-204. This form goes back to the court clerk as proof that the defendant was properly notified.

Certified mail green card. If you served the defendant by certified mail, the signed return receipt (the green card) is your proof of service. Attach it to the Return of Service filing. If the defendant refused to sign or the mail went unclaimed, service by certified mail is not complete — you'll need to use a different method.

Certificate of Service (Form 4-221). An alternative to the Return of Service on Form 4-204, used when a separate document is more practical.

Stage 4: Pre-Trial Preparation

Witness list and exhibit list. Unless the judge orders otherwise, plaintiffs must serve these on the defendant at least 20 days before trial. Defendants must serve theirs at least 15 days before trial. Missing this deadline can result in the judge excluding your witnesses or evidence at the hearing.

Exhibit binder. Organize your evidence into labeled exhibits. Bring the original plus at least three clean copies: one set for the judge, one for the defendant, one for witnesses, and one for your own reference during testimony.

Your exhibits typically include:

• Contracts, invoices, or written agreements
• The demand letter and certified mail receipt
• Photos (printed) or video on physical media such as a USB drive, not just on a phone
• Text messages and emails (printed with dates visible)
• Repair estimates or professional assessments
• Bank statements or canceled checks showing payments
• Business entity records from the Secretary of State

Subpoena (if needed). If a witness won't voluntarily attend, request a subpoena under Rule 2-501 (Magistrate) or Rule 3-501 (Metropolitan). Subpoenas must be served on the witness along with a statutory attendance fee ($12–$20 per day) plus mileage.

Stage 5: The Hearing

Bring everything listed above, plus:

• A government-issued photo ID
• A written summary of your claim for quick reference (dates, amounts, key facts)
• A calculator for any on-the-spot damage calculations the judge may ask about
• Pen and paper for notes during the defendant's testimony

Keeping Track of It All

The New Mexico small claims filing guide includes a case-filing checklist and deadline calendar that tracks every document and deadline from demand letter through judgment — so nothing gets missed along the way.

See more New Mexico guides →