Suing a Business in California Small Claims Court

Updated May 2026

You’ve paid a company for something and they didn't deliver, or they damaged your property, or overcharged you and won't make it right. Now you want your money back.

Yes, you can sue a business in California small claims court. The process is very similar to suing an individual, with a few specific things you need to get right.

Yes, You Can Sue a Business in California Small Claims

CA small claims court is open to disputes with all types of businesses: contractors, landlords, retailers, service companies, auto shops, repair services, and more. The court has seen it all. You aren't at a disadvantage because you're suing a company instead of a person.

Step 1: Figure Out What Kind of Business It Is

The legal structure of the business determines how you name them in the lawsuit. This is one of the most common reasons cases get dismissed.

• Sole proprietor: a single person running a business without formal registration. The format combines the owner's name with the business name.
• LLC or corporation: a formally registered business. You sue the business itself, not the owner. The name on your claim has to match the official registered name exactly, every letter needs to match.
• Partnership: similar rules to a sole proprietorship. There may be more than one owner, so you will need to name the individual partners separately, depending on the situation.

Step 2: Find the Exact Legal Name

For LLCs and corporations, go to the California Secretary of State's business search tool at bizfileonline.sos.ca.gov. Look up the business, find their officially registered name, and use that exact name on your small claims form.

This matters. A small mismatch between the registered name and what you write on your form can cause the case to get tossed. Be sure to take the five minutes and look it up.

You can also find the registered agent address through the Secretary of State database. That's where you'll need to send service.

Where to File When Suing a Business in California

Generally, you file in the county where the business is located, where you signed the contract, or where the dispute happened. In most cases, this is the courthouse closest to where you dealt with the business.

When filing the SC-100 form, you'll explain which of these applies to your situation. Here's the full guide on how to file small claims court in California.

What Evidence to Bring Against a Business

When you're suing a business, you're often dealing with an entity that has its own records and sometimes experience with small claims disputes. I recommend that you come in more prepared than you think you need to be. Evidence includes:

• The original contract, quote, invoice, or receipt
• Emails, texts, or any written communications
• Photos or videos of the issue
• Estimates or opinions from other companies showing what something should cost or what it would take to fix a problem
• Any written response from the business acknowledging the dispute or their position

The more documented your situation, the clearer it is for the judge. Read our full guide on how to present evidence in small claims court.

Can the Business Send a Lawyer?

This is a common worry, and the answer is generally no. California small claims court rules prohibit attorneys from appearing on behalf of a party in most cases. If you're suing a corporation or LLC, they have to send an officer or employee to represent them, not a lawyer.

There are limited exceptions (for businesses that deal in credit or debt collection, for example), but for everyday disputes, you won't be facing a lawyer across the table.

Common Business Dispute Scenarios

The kinds of cases small claims court was built for:

• Contractor who didn't finish the job
• Retailer who sold a defective product
• Auto shop that charged for repairs not done
• Landlord who kept a security deposit
• Service company that caused property damage

Each one has its own quirks for what you can claim and what you need to prove.

Don't Let a Business Intimidate You

Businesses know that a lot of people won't follow through on small claims disputes. They count on it. The process was built so that you don't need resources or legal experience to hold a company accountable.

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ClaimKit Help is an educational guide, not legal advice. Verify court rules, forms, and deadlines before filing.

Source: California Courts Self-Help: Small Claims