About Us
The Congress shall have power to lay and collect taxes on incomes, from whatever source derived, without apportionment among the several States, and without regard to any census or enumeration.

—U.S. Constitution, Sixteenth Amendment
(ratified Feb. 3, 1913)

Welcome to Sixteenth Amendment Tax Services, your friendly source for individualized tax preparation and advice in the Portland region. If your questions are not answered by the information on this website, please feel free to contact me at stephen@SixteenthAmendment.us.