Small Claims Court for an Unpaid Invoice: A Practical Guide
Small claims court is built for exactly this kind of dispute. It's cheaper and simpler than people expect, and winning is only half the job.
When a client has ignored your reminders, your calls and your final notice, small claims court is often the most practical next step for a modest unpaid invoice. You usually don't need a lawyer, fees are low, and the process is designed for ordinary people and small businesses.
This guide focuses on the US, with a note on the UK. Procedures vary by state and court, so always check your local court's website. This is general information, not legal advice.
Is it worth it?
Consider:
- The amount vs. filing fees and your time (a day or two, usually)
- Whether the client can pay. A judgment against someone with no money is hard to collect.
- Your evidence. Do you have the agreement, the invoice, proof of delivery and your reminders?
- The relationship. Sometimes a final phone call or mediation gets you most of the money faster.
Often, simply filing (or credibly saying you're about to) prompts payment.
Limits by state
Each state sets a maximum claim. Some examples as of 2026:
| State | Small claims limit |
|---|---|
| California | $12,500 for individuals; lower for businesses and other entities |
| Texas | $20,000 (justice court) |
| New York City | $10,000 |
| Florida | $8,000 |
| Georgia | $15,000 (magistrate court) |
| Illinois | $10,000 |
Limits change. Check your state court website before filing. If your claim is larger, you can sometimes waive the excess to stay in small claims, or file in a higher court.
Step by step
1. Send a formal demand letter
Many courts expect you to have asked for payment before suing, and a demand letter is also your last chance to settle. State the invoices, amount owed, interest or fees you're entitled to under your agreement, a deadline (10–14 days is typical), and that you'll file in small claims court if unpaid.
2. Choose the right court
Usually where the defendant lives or does business, or where the contract was made or performed. Check the court's rules on venue.
3. Name the defendant correctly
If your client is a company, use its exact legal name (check your contract or the state's business registry). Suing "Mike's Plumbing" when the entity is "M.J. Rivera Plumbing LLC" can delay things or make a judgment hard to enforce.
4. File the claim
Complete the court's claim form (often online), pay the filing fee, and state the amount and a short explanation: "Defendant agreed to pay $3,400 for website design services, which were delivered on 2 June. Invoice INV-0112 remains unpaid despite reminders."
5. Serve the defendant
The defendant must be formally notified, by certified mail, a sheriff or a process server, depending on local rules.
6. Prepare your evidence
Bring organized copies (for you, the judge and the defendant):
- The agreement: contract, signed quote, or emails showing agreement to the work and price
- The invoice(s)
- Proof of delivery: emails sending files, photos of completed work, signed delivery notes
- Reminders and the demand letter, with dates
- A simple timeline on one page
- Any evidence the client acknowledged the debt ("we'll pay next week")
7. The hearing
Hearings are short and informal. Explain the agreement, what you delivered, what you invoiced and what happened since. Stick to facts, and let your documents do the work.
After you win
A judgment says you're owed the money; it doesn't pay you. If the defendant doesn't pay voluntarily, you may need to use enforcement tools, such as bank levies, wage garnishment (for individuals) or liens on property, which have their own forms and fees. Court staff and self-help centers can explain the options in your state.
Make sure your invoice is complete before you need it as evidence: agreement reference, dates and terms.
Open the invoice generatorUnited Kingdom
In England and Wales, most unpaid invoice claims under £10,000 go through the small claims track of the county court, and you can start online through Money Claim Online. You're generally expected to follow the pre-action protocol for debt claims (for claims against individuals, including sole traders) before issuing, including a detailed letter before claim and time to respond. Scotland and Northern Ireland have their own procedures.
For business-to-business debts, you can include statutory late payment interest and compensation in your claim.
Prevention
Every step here is easier with clear paperwork from the start: written agreements, invoices that reference them, and a record of every reminder. See what to do about an unpaid invoice.
Keep reading
Unpaid Invoice? What to Do, Step by Step
A calm, escalating plan for unpaid invoices: reminders, calls, pausing work, late fees, demand letters, collections and small claims court.
Payment Reminder Email Templates for Unpaid Invoices
Copy-and-paste payment reminder emails for every stage of an unpaid invoice, from a friendly nudge to a final notice, plus subject lines that get opened.
How to Charge Late Fees on Invoices (and How Much)
How to add late payment fees or interest to invoices: typical rates, wording examples, legal limits in the US and UK, and when charging them backfires.