How to Sue in CA Small Claims Court: Form SC-100 Guide 2026

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Summary: When a contractor walks away with your $8,000 deposit, or a landlord illegally keeps your $5,000 security deposit, the amount is too small to hire expensive legal professionals, but far too large to ignore. California Small Claims Court is specifically designed for this scenario—no lawyers are allowed, leveling the financial playing field. This guide walks you step-by-step through filing Form SC-100, executing proper legal service, and preparing to present your case in front of the judge.

California Small Claims Court is known as the "People's Court." It is a streamlined, inexpensive venue designed to resolve financial disputes quickly and efficiently without the crippling overhead of attorney's fees. In fact, California law strictly prohibits attorneys from representing either party during a standard small claims hearing. It is just you, the defendant, and the judge.

As an individual consumer or sole proprietor in California, you can sue a person or a business for up to $12,500 in Small Claims Court. (Note: Corporations and LLCs are capped at $6,250). However, because the system is designed for self-representation, the court clerks cannot give you legal advice. If you mess up the paperwork or skip a procedural step, the judge will dismiss your case.

Here is the exact, step-by-step roadmap to successfully filing a small claims lawsuit in California.

Step 1: Demand the Money First

California law requires you to formally ask the defendant for the money before you file a lawsuit. You cannot simply blindside them. Send a clear, polite "Demand Letter" via certified mail detailing exactly how much they owe you and why, and give them a deadline (e.g., 10 days) to pay. Keep a copy of this letter and the certified mail receipt; you will need to show it to the judge.

Step 2: File Form SC-100

If the deadline passes and they refuse to pay, it is time to file the lawsuit. The cornerstone document of California Small Claims is Form SC-100 (Plaintiff's Claim and ORDER to Go to Small Claims Court).

You must fill this out with pinpoint accuracy:

• Name the Defendant Correctly: If you are suing a business, you must use their exact legal corporate name (e.g., "Bob's Plumbing, LLC," not just "Bob"). If you sue the wrong entity, you cannot collect the money later.

• State the Facts: You have a very small box to explain what happened. Be concise: "Defendant broke contract by abandoning bathroom remodel on Nov 1st; $8,000 paid for materials never delivered."

• File it: Take the SC-100 to the court clerk in the correct county (usually where the defendant lives or where the contract was broken). Pay the filing fee (generally between $30 and $75, depending on the claim amount), and the clerk will stamp it and assign you a court date.

Step 3: Serve the Defendant (The #1 Place Plaintiffs Fail)

This is the single most critical procedural rule in the entire process: You cannot legally hand the paperwork to the defendant yourself, nor can you mail it to them normally.

The defendant must be officially "Served." This ensures they have constitutionally valid notice of the lawsuit. You must have a neutral third party execute the service. Your options include:

1. A Professional Process Server: This costs around $50-$100 and is highly reliable.

2. The County Sheriff: Many sheriff's civil divisions will serve papers for a small fee.

3. A Friend over 18: Anyone over 18 who is not involved in the lawsuit can physically hand the papers to the defendant.

Watch-Out: The Corporate Loophole

If you are suing a corporation or LLC (e.g., a massive property management company or a tech giant), you cannot just hand the papers to a random cashier or receptionist. You must serve their designated "Agent for Service of Process." You find this exact person's name and address by doing a free public search on the California Secretary of State's website. If the business is out-of-state and operates in California illegally without an agent, you can legally serve the California Secretary of State directly.

Once the defendant (or their Agent) is served, the person who handed them the papers must fill out Form SC-104 (Proof of Service) and sign it under penalty of perjury. You must file this form with the court at least 5 days before your trial. If you don't file the Proof of Service, the judge will cancel your hearing.

Step 4: Prepare Your Evidence Binder

Small claims judges have incredibly crowded dockets. Your hearing will likely last between 5 and 15 minutes. The judge does not want to watch you scroll through your cracked iPhone screen looking for a text message.

To win, you must be hyper-organized. Create a physical binder of evidence containing:

• Your contract or lease.

• Printed, clearly readable screenshots of text messages or emails.

• Printed photographs of damages.

• Invoices, canceled checks, and bank statements.

You must bring three physical copies of everything: One for the judge, one to hand to the defendant, and one for yourself to reference while speaking.

When your name is called, remain calm, speak only to the judge (never argue directly with the defendant), state the facts, and point directly to your evidence binder. By following the SC-100 procedures flawlessly and presenting a highly organized case, you maximize your chances of walking out of the courtroom with a $12,500 judgment in your hand.

Disclaimer: This article is general information, not legal, financial, tax or medical advice.