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State of California Franchise Tax Board

Electronic Fax Service

Purpose of bulletin

Beginning November 1, 2010, the Filing Services Bureau will upgrade physical fax machines to an electronic fax service.


This process will provide better fax quality and increased security for customer information. Incoming fax transmissions will be delivered directly to a designated electronic inbox with restricted access. In addition, this new service will provide a much greater capacity and less down time, thereby increasing customer satisfaction and efficiency.

Electronic Fax Numbers

Business Area Old Fax Number New Fax Number
Tax Practitioner Correspondence 916.845.6377 916.845.9300
PIT RIN Correspondence 916.845.0484 916.843.5443
Power of Attorney (POA) 916.845.0523

Taxpayer Inquiries

The current fax numbers will remain active until January 31, 2011; you may begin using the new fax numbers immediately. The old fax numbers will be disconnected on February 1, 2011.

If a fax is sent to the old fax number beginning February 1, 2011, we will respond with a message to use the new number.

We will update fax number references in all internal and external references within the next 90 days.

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