In order to rereport tax evasion and other tax law violation to the internal revenue services whistleblower office, fill out this form and attach thing supporting documents. The form is called a Form 211.
Mail it to,
Internal Revenue Service
Whistleblower Office – ICE
1973 N. Rulon White Blvd.
M/S 4110
Ogden, UT 84404
Then get ready to respond to phone calls from the IRS and be available to be interviewed.