Foreign-qualify in California: 5 steps
“Foreign” just means formed in another state. A Delaware or Wyoming company doing business in California must register here. If it doesn't, it still owes the tax, adds daily penalties, and can't use California courts until it registers.
The five steps
- Confirm you are doing business in California. One W-2 employee, an office, inventory, an owner managing the company from California, or sales, property, or payroll above the § 23101 thresholds is enough. Test it in the nexus checker.
- Register with the Secretary of State through bizfile Online. LLCs file the LLC-5 Application to Register ($70); corporations file a Statement and Designation by Foreign Corporation ($100). Both name a California agent for service of process; corporations also attach a certificate of good standing from their home state.
- Pay the $800. The annual tax is due by the 15th day of the 4th month of each taxable year you are registered or doing business here: for LLCs on Form 3522, for corporations as the first estimated payment. LLCs with California receipts of $250,000 or more also owe the § 17942 fee.
- File the Statement of Information within 90 days of registering: LLC-12 ($20, then every two years) or SI-550 for corporations ($25, then every year). See the SOI guide.
- Maintain both states. Keep filing your home-state report and tax, plus California's return every year: Form 568 for LLCs, 100 for C-corps, 100S for S-corps.
If you skipped it
An unregistered foreign entity doing business in California faces a Secretary of State penalty of $20 per day, up to $10,000. The FTB separately assesses a $2,000 penalty on a foreign LLC doing business here while unregistered, suspended, or forfeited. Both come on top of the FTB tax, fees, penalties, and interest for every year it was doing business: the FTB does not wait for you to register before assessing. The entity also cannot bring or maintain a lawsuit in a California court until it registers and pays, which matters the moment a customer refuses to pay an invoice. Registering late is still better than not registering: the penalties stop growing, and many businesses can limit exposure for earlier years through the FTB's voluntary disclosure program.
The dual-cost problem
Qualifying means paying two states every year. A Delaware LLC run from California pays Delaware's $400 and California's $800 plus fees each year: about $1,200 minimum, versus $800 for an LLC formed directly in California. A Wyoming LLC adds $62 instead of $400. That is why California-based teams without investors often form in California from the start, and why companies that move here sometimes convert rather than qualify. Compare the totals in the tri-state matrix.