The United States tax system has been impacted by considerable changes over the decades. These changes are reflected in historical events such as war, changes in the economy and society spending. Taxes are financial payments made to the government. Every citizen and business that meets the income requirements must file income tax. It is essential to use the correct file forms. To file taxes you must first determine your filing status (whether your married, single or a business entity) and exemptions. Then you must calculate your income and deductions. Use these numbers to determine, income tax, credit and additional taxes. Once you calculate your total payments you can see how much you under or over paid. If there are any inconsistencies or failure to file taxes a person or a business can be fined heavily. These resources will help answer fundamental and basic questions concerning taxes.