Phone / fax
See our current customer service wait times.
Income tax
Customer service Live help for taxes
800-852-5711 Open weekdays 8 AM to 5 PM*
*Extended Hours: 8 AM to 6 PM Wednesday, April 1, 2026 - Wednesday, April 15, 2026
8 AM to 5 PM Saturday, April 11, 2026
916-845-6500 Outside the US
Automated help
800-338-0505 Available 24/7 Request forms, refund status, payments, and balance due
Collections
Personal Income tax collections
800-689-4776 Open weekdays 8 AM to 5 PM
916-845-4470 Outside the US
Business Income tax collections
888-635-0494 Open weekdays 8 AM to 5 PM
916-845-7033 Corporations (outside the US only)
916-845-7166 Limited Liability Companies (outside the US only)
916-845-7165 Partnerships (outside the US only)
Court-ordered debt (COD) Collections for California courts
916-845-4064 Open weekdays 8 AM to 5 PM
Visit: Court-ordered debt
Vehicle registration collections Collections for DMV registration fees
888-355-6872 Open weekdays 8 AM to 5 PM
Interagency intercept Collections for other agencies
866-563-2375 Open weekdays 8 AM to 5 PM
Visit: Interagency intercept
General
Withholding (nonwage) Nonresident (592-B), real estate (593), backup (K-1)
888-792-4900 Open weekdays 8 AM to 5 PM
916-845-4900 Outside the US
916-845-9512 Fax
Visit: Withholding on nonresidents
Taxpayer Advocate Services
Helps you resolve tax account issues. Before you call, review our Taxpayer advocate criteria.
800-883-5910 Open weekdays 8 AM to 5 PM
916-843-6022 Fax
Small Business Liaison
FTBSmallBusinessLiaison@ftb.ca.gov Open weekdays 8 AM to 7 PM
Helps business owners with their filing requirements.
Visit: Small businesses
Small Businesses / Disabled Veteran Business Enterprises (SB/DVBE)
916-845-5511 Open weekdays 7 AM to 3 PM
Helps businesses looking for procurement opportunities with us.
Careers and recruitment
916-845-3608 Exam unit Open weekdays 8 AM to 4 PM
916-845-3650 Seasonal Work Information Line Open weekdays 8 AM to 4 PM
Visit: Careers and recruitment
California Relay Service
711 or 800-735-2929
We are closed on state holidays.