Everything you need to know about getting a business license in San Diego — explained simply. No jargon.
San Diego City Treasurer's Office
Website: https://sandiego.gov/treasurer
San Diego has a flat-rate Business Tax Certificate plus a small per-employee fee. One of the more straightforward California systems. Apply online at sandiego.gov/treasurer.
Visit https://sandiego.gov/treasurer — look for "Business License," "Business Tax Certificate," or "Business Registration."
Most cities now have online applications. Some still use paper forms. Have your business name, address, EIN or SSN, and estimated revenue ready.
You'll need: business name, business address, what you do, your Social Security Number or EIN, and sometimes your estimated annual revenue.
San Diego's typical fee is $34 base + $18/employee. Pay online by credit card or by check if applying by mail.
Takes approximately 5–10 days. If you have a physical location that customers visit, post your license where it's visible.
A city license doesn't cover everything. See the California state guide for additional state-level requirements.
Most San Diego business licenses need to be renewed every year. Missing renewal usually means a fine. Set a calendar reminder now.
⚠️ Heads up: This site explains business licensing in plain English. Not legal advice. Rules change. Always verify with your actual city or state office. Affiliate disclosure.