CDTFA Return Analysis Section fax number

Where to fax CDTFA's Return Analysis Section about billing questions or a letter on a self-assessed sales and use tax return.

Verified October 22, 2026Checked against Key Contacts (California Department of Tax and Fee Administration).

CDTFA Return Analysis Section fax number: which number to use
Who uses it	Office	Fax
Billing questions or letters about self-assessed returns	CDTFA Return Analysis Section	1-916-323-0478

Last verified October 22, 2026

Faxsure is not affiliated with California Department of Tax and Fee Administration or any government agency. We copy each number from the official source linked above; check it before you send.