- The Internal Revenue Servicewww.irs.gov
- Small Business and Self-Employed Tax Centerwww.irs.gov
- LA City Business Portalbusiness.lacity.gov
- California Franchise Tax Boardwww.ftb.ca.gov
- California State Board of Equalizationwww.boe.ca.gov
- California Employment Development Departmentedd.ca.gov
- California Tax Service Centerwww.taxes.ca.gov
