They pay sales taxes....excise taxes...liquor and cigarettes taxes, and gasoline taxes, and in many instances they pay payroll tax monies in to the federal coffers, same with the 49% of Americans not paying federal income taxes, they just don't earn enough taxable income, to be income taxed, but they pay plenty of other federal, state, property, and local taxes.
But where a lot of taxes come from is their employers paying taxes on them with payroll tax match, and the employers paying federal income taxes on more earned taxable income of their companies through their employee labor producing more...