Filing a False Tax Return

It is a federal crime for anyone to knowingly and willfully file an income tax return that they know to be false in some material way. 26 U.S.C. § 7207 provides:

Any person who willfully delivers or discloses to the Secretary any list, return, account, statement, or other document, known by him to be fraudulent or to be false as to any material matter, shall be fined not more than $10,000 ($50,000 in the case of a corporation), or imprisoned not more than 1 year, or both. Any person required pursuant to section 6047 (b), section 6104(d), or subsection (i) or (j) of section 527 to furnish any information to the Secretary or any other person who willfully furnishes to the Secretary or such other person any information known by him to be fraudulent or to be false as to any material matter shall be fined not more than $10,000 ($50,000 in the case of a corporation), or imprisoned not more than 1 year, or both.

In filing false tax return cases, the Government does not need to prove that it has been deprived of any tax by reason of such filing of the false return; even if it is shown that additional taxes may be due, the person can still be held accountable because they willfully filed a false tax return.