California sales tax permit / seller's permit.
If your business sells taxable goods or services in California, you need a sales tax permit (also called a seller's permit). This guide explains nexus rules, post-Wayfair economic thresholds, the application process, and ongoing filing frequency.
Register for California sales tax →When you need a California sales tax permit
California requires sales tax registration once your business has nexus in the state. Nexus can be:
Up a level, or across to the neighbors.
Sales Tax Permit by state
The national explainer above this page: what changes between jurisdictions, and why.
Open the hub → SectionSecretary of State directory
Every filing the state business office takes, state by state.
Open the section → StateCalifornia business filings
Every filing a business makes in California, gathered on one page.
Open California → In CaliforniaSeries LLC in California
The series LLC, state by state
Read the guide → In CaliforniaSecretary of State filing fees in California
Filing fees, state by state
Read the guide → In CaliforniaEntity conversion in California
Entity conversion, state by state
Read the guide → In CaliforniaLLC operating agreement in California
LLC operating agreements, state by state
Read the guide →