How do I file a complaint against another business for unfair competition with the California Attorney General's Office?

To file an unfair competition complaint against a business, you must submit a formal complaint form with supporting evidence to the California Attorney General's Public Inquiry Unit. This can be done online or by mail. Here is how to file a complaint: Step 1: Gather All Relevant Evidence Collect all documents and records that support your claim of unfair competition. This evidence may include copies of false advertisements, screenshots of misleading websites, contracts, invoices, photographs, or email correspondence with the business. Clear evidence is critical for a strong complaint. Step 2: Locate the Official Complaint Form Go to the California Attorney General's official website (oag.ca.gov). Navigate to the section for consumer protection or public inquiries to find the official complaint form. You will typically have the option to fill out the form online or download a printable PDF version. Step 3: Complete the Complaint Form in Detail Fill out the form completely and accurately. You will need to provide your contact information, the full name and address of the business you are complaining about, and a detailed, chronological account of the unfair business practice. Clearly explain what happened, when it occurred, and why you believe the conduct violates California's Unfair Competition Law. Step 4: Attach Your Supporting Documents If you are filing online, you will be prompted to upload your digital evidence files. If you are mailing your complaint, attach photocopies of your documents. Never send original documents, as they will not be returned to you. Step 5: Submit the Complaint Submit the completed form and all attachments. The fastest method is through the Attorney General's online submission portal. Alternatively, you can mail the printed form and document copies to: Attorney General's Office, Public Inquiry Unit, P.O. Box 944255, Sacramento, CA 94244-2550. Important Details and Nuances The Attorney General's Office does not act as your private attorney. It represents the interests of the people of California. Complaints are used to monitor business practices and identify patterns of misconduct that may lead to a public investigation or lawsuit. There is no guarantee your specific complaint will be investigated. Warnings and Limitations Filing a complaint with the Attorney General does not pause the statute of limitations for filing your own private lawsuit, which is generally four years under the Unfair Competition Law. The Attorney General's Office cannot provide you with legal advice or represent you in a personal legal matter. This is general information and does not constitute legal advice. For complex situations or to explore filing a private lawsuit for damages, you should consult with a qualified California attorney.
Disclaimer: This information is for general guidance only and should not be considered as legal advice. Please consult with a qualified attorney for specific legal matters.
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Updated: October 03, 2026

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