The cost to form an LLC for a San Diego business starts with the $70 California filing fee. Add annual fees, a registered agent, and local San Diego business taxes below.
Last updated: May 2026 · Data: MIT Living Wage Calculator, C2ER, U.S. Census, BLS, IRS, state and city sources
California charges a $70 filing fee to form an LLC and a $800 annual franchise tax (minimum) each year. California has the highest top marginal income tax rate in the nation at 13.3% (including the 1% Mental Health Services Tax on income over $1 million). The $800 minimum franchise tax applies to all LLCs regardless of income.
| Cost Item | Amount | When Due |
|---|---|---|
| California Filing Fee | $70 | One-time at formation |
| Annual franchise tax (minimum) | $800 | Annually |
| Registered Agent Service | $49 to $300/year | Annually |
| Local San Diego Business License / Tax | $50/year (est.) | Annually |
| Operating Agreement | $0 to $500 | One-time (recommended) |
| EIN (Federal Tax ID) | Free | One-time (IRS.gov) |
San Diego requires a Business Tax Certificate; the annual fee is modest and based on the number of employees rather than revenue.
San Diego pairs a major U.S. Navy and Marine Corps presence with a world-class biotech and life-sciences cluster, a busy tourism economy, and cross-border trade with Tijuana, all along one of the most desirable stretches of California coastline.
| Local Metric | San Diego (2026 estimate) |
|---|---|
| Metro population | 1.4 million |
| County / jurisdiction | San Diego County |
| Cost of living index (US avg = 100) | 143 |
| MIT living wage, single adult | $27.30/hour |
| MIT living wage, one earner supporting a family of four | $47.10/hour |
| Applicable minimum wage | $17.25/hour |
| Average rent, 1-bedroom | $2,400/month |
| Average rent, 2-bedroom | $3,100/month |
| Median home price | $1,010,000 |
| Median household income | $98,000/year |
| Combined sales tax rate | 7.75% |
| Effective property tax rate | 0.73% of value/year |
Local figures are 2026 estimates compiled from the MIT Living Wage Calculator, the C2ER Cost of Living Index, U.S. Census and Zillow housing data, and city and county sources. Verify current figures before relying on them.
The LLC filing fee is set by California at $70, since LLCs are formed at the state level. Add the $800/year annual franchise tax (minimum), a registered agent (about $49 to $300/year), and any local San Diego business license or tax. San Diego requires a Business Tax Certificate; the annual fee is modest and based on the number of employees rather than revenue.
San Diego requires a Business Tax Certificate; the annual fee is modest and based on the number of employees rather than revenue.
Plan for the $800 annual franchise tax (minimum), registered agent renewal (about $49/year), and any local San Diego business license or tax. The calculator above totals these for you.
LLCs are registered with the California Franchise Tax Board at the state level, not the city. You then comply with local San Diego requirements such as a business license, zoning, and any city business tax. There is no separate city-level LLC filing.
If your business actually operates in San Diego, forming in California is usually simplest. Forming in Delaware or Wyoming while operating in San Diego typically forces you to register as a foreign LLC in California anyway, paying fees in both states.