IRS PUBLICATION 513

A document that outlines tax requirements for workers who earn an income in the United States. Published by the Internal Revenue Service (IRS), a visitor to the US is a nonresident alien. Generated income in America is taxed regardless of citizenship status, although nonresidents who do not earn income, such as tourists or those who do not have business, need not to file a return. If a worker in the US earns income from abroad or has income exempt from taxes, he or she still needs to file a return. Wages, rents, interest, dividends and income from business can be taxable.