1040EZ Tax formThe 1040EZ is a simplified form used by the IRS for incometaxpayers that do not require the complexity of the full 1040 taxform. Simply select your tax filing status and enter a few otherdetails to estimate your total taxes for 2010. Based on yourprojected withholdings for the year, we then show you your refundor the amount you may owe the IRS next April 2011. Please note thatthis calculator uses the 2010 preliminary tax tables subject tochange by the IRS.