Contributions to Buchanan for Congress are not tax deductible as charitable donations for federal income tax purposes. Contributions from corporations, labor unions, foreign nationals without green cards, and federal government contractors are prohibited. Federal law requires political committees to use their best efforts to obtain and report the name, mailing address, occupation and employer of each individual whose contributions aggregate in excess of $200 in a cycle. Funds received in response to this solicitation are subject to federal contribution limits. An individual may contribute $5,400, a couple can contribute $10,800.