Yes, we are required to pay income tax. Several factors determine how much, if any, someone is held accountable for. Those include your income, deductions, and tax credits. Individuals and businesses are responsible for filing taxes. There have been many businesses and celebrities in the scrutiny of tax evasion. Some how the inevitable catches up to them, and when it does causes major financial issues.
Payment of income tax is required by United States federal law. The constitution gives power to the states to levy taxes, and that also implies that they also have the power to collect the taxes they levy. If they cannot collect the taxes that they levy, that would take away the point of levying taxes in the first place.
“In dealing with the scope of the taxing power, the question has sometimes been framed in terms of whether something can be taxed as income under the Sixteenth Amendment. This is an inaccurate formulation of the question and has led to much loose thinking on the subject. The source of the taxing power is not the Sixteenth Amendment; it is Article I, section 8 of the Constitution. It is important that these provisions be clearly understood; what is required is an understanding of fundamental principles. The familiar statement that at this time we need education in the obvious more than investigation into the obscure (Holmes, Collective Legal Papers, pp. 292-293), although made in a different context, is peculiarly applicable here.”
Penn Mutual Indemnity Co. V. Commissioner of Internal Revenue, 32 T.C. 653 at 5659 (1959)