Which of the following is true of the federal income tax structure? the poor are required to pay a higher percentage of their income than the wealthy. the tax structure requires payment of an equal percentage of income from all americans. individuals pay income taxes; however, corporations and businesses do not. the poor pay a much smaller percentage of their income than the wealthy. 14. when american companies have their products made, or services provided outside of the united states, it is known as exportation. importation. outsourcing. warehousin