A tax return is a form that individuals and businesses submit to report their income, expenses, and other financial information to the government. This document helps determine how much tax is owed or if a refund is due. Tax returns typically include details about wages, investments, and deductions. In many countries, including the United States, tax returns are filed annually, usually by April 15th. They can be completed using paper forms or electronic filing systems. Accurate tax returns are essential for compliance with tax laws and can affect future financial decisions and eligibility for certain benefits.