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 8 a.m. to 5 p.m., except state holidays
- 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