CA has 1 of the highest business taxes. LLCs have to pay the State $800 every year, even if your business is losing money or has no revenue and even if you are a single-member LLC, in which case IRS regards it as a pass-through entity.
On top of that, if you form your business in San Francisco, you are mandatory charged a 4% "Healthy San Francisco" city tax that is supposed to helps pay for employee's healthcare.
> 2008 Health Care Security Ordinance, which provides health care to San Francisco residents without insurance (the Healthy San Francisco program) and requires businesses to help fund health care for their employees in San Francisco.
Source: https://www.tripsavvy.com/restaurants-healthy-san-francisco-...
Restaurants were busted running a scam where they passed on this tax to the customer and pocketed the $$ themselves, but that's a whole different story (see Source link above).