To do one of these:
- Get your Customer Service Number
- Get information about your account
- Notify us of a change in your name or address
- Respond to a notice or bill we sent you
You must call us at:
- (800) 852-5711 within the United States
- (916) 845-6500 outside the United States
- Monday through Friday, year-round from 7 a.m. until 6 p.m.
- We may modify these hours without notice to meet operational needs.
To get amnesty information
To get general information about filing
To get forms by email
To report a technical problem using this website
To get answers to non-confidential tax law questions