Phone / fax
Phone and chat services
Due to the State directive of social distancing, we have a limited number of staff available for phone and chat services. If you cannot get through our phone lines, please try to contact us later. You can also use our website for more information and online service options.
Thank you for your patience during this challenging time.
See our current customer service wait times.
Customer service Live help for taxes
800-852-5711 Open weekdays 8 AM to 5 PM
916-845-6500 Outside the US
800-338-0505 Available 24/7 Request forms, refund status, payments, and balance due
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 7 AM to 5 PM
Interagency intercept Collections for other agencies
866-563-2375 Open weekdays
Visit: Interagency intercept
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
Visit: Income tax for nonresidents
Taxpayer advocate services Executive and advocate services
800-883-5910 Open weekdays 8 AM to 5 PM
Helps you resolve tax account issues.
Visit: Taxpayer advocate services
Small Business Liaison
916-845-4669 Open weekdays 8 AM to 5 PM
Helps business owners with their filing requirements.
Visit: Small businesses
Small Businesses / Disabled Veteran Business Enterprises (SB/DVBE)
916-845-5511 Open weekdays 8 AM to 5 PM
Helps businesses looking for procurement opportunities with us.
Careers and recruitment
916-845-3608 Exam unit Open weekdays 8 AM to 5 PM
916-845-3650 Seasonal Work Information Line Open weekdays 8 AM to 5 PM
Visit: Careers and recruitment
Criminal investigations Tax fraud and evasion
916-227-3203 Open weekdays 8 AM to 4:30 PM
California Relay Service
711 or 800-735-2929
TTY Device to device
We are closed on state holidays.