A tax return is the completion of documentation that calculates an entity’s or individual's income earned with the amount of tax payable to the government, government organizations or to potential taxpayers.Specific tax forms are intended to be used by taxpayers, or private entities that are required to report information on the tax liabilities together with income earners, businesses and companies. Tax revenue is used by governments to grant sums of money to communities, including military, education, hospitals and infrastructure.