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State of California Franchise Tax Board

Criminal Investigations — Contact Information

Report Income Tax Violations

When you report an income tax violation, you help ensure tax revenues fund vital public services such as police, fire protection, and schools in your community.

Individuals who operate in the underground economy avoid their tax responsibility and harm all Californians. The underground economy creates an unfair and illegal advantage over California businesses. It undercuts honest legitimate businesses and deprives workers of basic employment protections. California’s citizens lose tax revenue that supports vital public services.

Mail

CRIMINAL INVESTIGATION BUREAU MS A349
FRANCHISE TAX BOARD
PO BOX 219
RANCHO CORDOVA CA 95741-0219

Phone

  • 916.227.3203
  • 800.822.6268 (TTY/TDD - Assistance for persons with hearing or speech impairments)

Fax

  • 916.227.2798
Chat with an FTB Representative