Is paying income tax mandatory? Is it constitutional? Are there any laws on the books that say you HAVE to pay taxes?
1. Yes, there is a specific law mandating income tax. It is codified in Title 26 U.S.C. http://www.law.cornell.edu/uscode/uscode26/usc_sup_01_26.html
2. Yes, if you make above the standard deduction, you must pay an Income Tax.
3. Yes, it is Constitutional. Read Article 1, Section 8 and the 16th amendment.
For more information on why anti-tax arguments are wrong, go to http://evans-legal.com/dan/tpfaq.html