Colorado · Unpaid invoice

Unpaid invoice in Colorado small claims

Client won't pay your invoice? Collect it in small claims.

If a client or customer has not paid an invoice for work you delivered or goods you sold, small claims court is a low-cost way to collect. You do not need a lawyer. The strength of your case usually comes down to clear proof: the agreement or terms, the invoice, evidence the work or goods were delivered, and a record of your attempts to collect.

In Colorado, small-claims cases are heard in the Small Claims Court (a division of the County Court) and you can sue for up to $7,500.

Unpaid invoice: steps that matter

  1. Send a final written demand (a clear statement of what is owed and a payment deadline) and keep proof you sent it.
  2. Gather your contract or written terms, the invoice, delivery/completion proof, and any messages showing the other side accepted the work.
  3. Confirm you are within the statute of limitations below before you file.
  4. File in the correct court for where the defendant is or where the work happened, and keep every date and document together.

Filing your Notice, Claim, and Summons to Appear for Trial (Form JDF 250) in Colorado

  1. Complete Form JDF 250. Fill out the Notice, Claim, and Summons to Appear for Trial (JDF 250), identifying the names and addresses of the plaintiff(s) and defendant(s) in the caption, answering all four questions Yes or No, and writing a brief description of your claim including what you are claiming and the amount requested. If a defendant is a business or entity, look up its registered agent at coloradosos.gov. Complete all 4 parts (7 pages). Do not attach exhibits to the form. Per the guide: "JDF 250 is the initial form that you will need to file a Small Claims Case."
  2. File the form with the county court and pay the filing fee. Take the completed JDF 250 (all four parts / 7 pages) to the clerk's counter in the county court in the proper county and pay the nonrefundable filing fee ($31.00 for claims of $500 or less; $55.00 for claims over $500 up to $7,500). The court completes the section setting the trial date and time. If you cannot afford the fee, file a Motion to File Without Payment and Supporting Financial Affidavit (JDF 205).
  3. Serve the defendant. Have each defendant served with the 'Defendant's Copy' of JDF 250 at least 15 days before the trial date. Service may be made by any person 18 or older who is not a party, by a sheriff or process server, or by certified mail mailed by the clerk (you prepay the certified-mail cost, roughly $5.00 to $15.00). File the completed Affidavit of Service with the court before or on the trial date.
  4. Attend mediation (if required) and the trial. Some small claims courts require mediation before or on the trial date; the parties may reach a stipulation (JDF 75). If no agreement is reached, appear at the scheduled trial with all evidence and witnesses. A magistrate or judge decides the case; jury trials are not allowed.

Filing fees: Filing and service fees are set locally and vary; confirm the current amount with the court. A fee waiver is available if you cannot afford the costs.

Deadline that applies to your unpaid invoice

An unpaid invoice is usually a contract or account claim. If you had a signed agreement or written terms, the written-contract statute of limitations below typically applies; a purely verbal deal usually falls under the oral-contract period. That statute is the deadline to file, so do not wait too long.

Debt on a contract or account: 6 years (C.R.S. § 13-80-103.5)

Answering a lawsuit: On or before the scheduled trial date

Serving the defendant: The defendant must be served with the 'Defendant's Copy' of JDF 250 at least 15 days before the trial date. Service may be by any non-party who is 18 or older, by a sheriff or process server, or by certified mail mailed by the clerk (prepay cost). An Affidavit of Service must be filed with the court before or on the trial date.

Appeals: A party who wishes to appeal must file a notice of appeal within 14 days of the judgment and proceed under C.R.C.P. 411. The appeal goes to the district court in the same county; the appellant must give the appeal paperwork to the county court within 14 calendar days of the decision, and file a copy of the Notice of Appeal and Designation of Record in the district court within 35 days.

This page is general information, not legal advice, and CaseBySelf is not a law firm. Rules, fees, and deadlines change and vary by court: verify with the specific court where you file. Source: Colorado Judicial Branch - Small Claims or County Civil Appeal (self-help). Last reviewed 2026-06-23.