Actually Freed, I don't establish an excise tax on the use of Federal Reserve notes. I don't believe a private sector employee is liable for any income tax, (but the feds are: http://www.law.cornell.edu/uscode/text/4/111) regardless of what bucket it is put in. Only the employer is liable for income tax, (see attachment-Liberty for Dummies) and I believe that employer is the federal government.