California FTB filing enforcement fax numbers

Where to fax the Franchise Tax Board about a filing enforcement notice (a notice that the FTB has no return on file).

Verified October 22, 2026Checked against FTB 1240, California Franchise Tax Board Information Directory (Revised 03/2025).

California FTB filing enforcement fax numbers: which number to use
Who uses it	Office	Fax
Personal income tax filing enforcement notices	Filing Enforcement, personal income tax	916-855-5646
Business entities filing enforcement notices	Filing Enforcement, business entities tax	916-843-6169

Before you fax

Filing enforcement questions can also go to [email protected], per the directory.

Last verified October 22, 2026

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