To apply for a business license in California you need to register for a Permit, License, or Account with the California Department of Tax and Fee Administration (CDTFA). You can register online via the CDTFA for sales and use tax accounts plus special tax and fee programs, including, Seller's Permit, Cannabis Tax Permit, International Fuel Tax Agreement (IFTA), Timber Yield Tax, California Fuel Trip Permit, Annual Flat Rate Decals, Prepaid Mobile Telephony Services Surcharge, and Lead Acid Battery Fees

In addition you can also use the registration system to, Pay Use Tax, Claim an exemption on a purchase of a vehicle, vessel, aircraft or mobile home and pay taxes on internet purchases of cigarette/tobacco products.

California Department of Tax and Fee Administration Online Resources

• California Department of Tax and Fee Administration Registration Process
• California Tax Rates and Fees
• Taxpayers' Rights Advocate Office