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State of California Franchise Tax Board

Tax informant hotline now operational


To advise staff of the newly created Informant Hotline. This hotline allows callers to assist us in detecting individuals or companies who may be understating their tax liability.


Various program and service areas throughout the department receive informant information. Previously, no centralized process existed and no tracking mechanism was in place to use this information.


As of January 6, 2006, individuals who wish to assist FTB in identifying taxpayers who may be understating their tax liability may report that information to FTB by:

  • Calling the new Tax Informant Hotline: (800) 540-3453
  • Accessing our Website at
  • Faxing the information to: (916) 843-2060
  • Writing to:

Franchise Tax Board
P.O. Box 1565
Rancho Cordova CA 95741

Informants are not required to identify themselves. However, if they choose to provide us with their personal information, we will treat that information as confidential unless otherwise compelled by law. No reward incentive will be offered.


For specific information, visit FTB's external Website at and click on the “Contact Us” tab.


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