Startup Tax &
Accounting Across
California
The tax rules are statewide, but the startup ecosystems aren't.
Pick your city for local context, then dive into the guides that apply wherever you build.
How to Use This
One tax system,
six very different startup markets
California treats every startup the same on paper. The $800 franchise tax, the R&D credit, the filing deadlines, none of it changes based on which city you're in. What changes is the ecosystem around you: the industries, the institutions, the costs, and which of California's rules matter most for the kind of company you're building.
These city pages give you the local context. For the rules themselves, everything routes back to the statewide guides.
Southern California
Los Angeles
The broadest ecosystem in the state; media and creator tech, aerospace, cleantech, consumer brands. your tax situation depends heavily on what you build.
Los Angeles guide →
Bay Area
San Francisco
The world's top venture ecosystem and the center of the AI wave, plus the highest burn in the country. Runway discipline matters most here.
San Francisco guide →
Silicon Valley
San Jose
Silicons Valley's hardware heart: semiconductors, deep tech, and capital-intensive builds where R&D credits and equipments costs matter most.
San Jose guide →
Southern california
San Diego
A top life-sciences hub with deep biotech, wireless and defense roots. Long pre-revenue timelines make the R&D credit especially relevant.
Capital Region
Sacramento
The state capitals's govtech moat plus UC Davis agtech, at costs well below the coast. A capital-efficient market with a unique customer: the state.
Sacramento guide →
Inland Empire
Riverside
A UCR-driven ecosystem with a national logistics corridor and low costs, made for long runways, real R&D, and non-dilutive federal funding.
Riverside guide →
The Rules, Wherever You Build
What applies to every California startup
No matter which city you picked, these are the obligations and opportunities that follow you across the state.
Start here if you're not sure what applies to you.
Taxes
California Startup Taxes
The full map of what you owe and when.
Credits
R&D Tax Credits
The full map of what you owe and when.
Accounting
Startup Accounting
Books, payroll, and reporting done right.