California e-filee-Programs Customer Service

Our e-Programs Customer Service is available Monday through Friday from 8 a.m. to 5 p.m. We can help you with:

  • General Individual, Fiduciary and Business e-file Program questions.
  • e-file Program enrollment requirements.
  • Getting started with e-file.
  • Tracking down your acknowledgements.
  • Resolving business rule errors.
  • Canceling electronic funds withdrawals and estimated tax payments requested with an e-file return.
  • Mandatory e-file questions. You can also check our Frequently Asked Questions for your answer.

Contact us by:

Email
Do not include any social security numbers or other confidential information when contacting us by email.

Phone: 916.845.0353
Fax: 916.855.5556

More questions?