1040 2005 federal form tax Of the tax return ... blank tax forms simpler to do at the last year,. mi 1040 tax forms Comments ... instructions for Federal Tax Liability for Form 1040 ...... be the date on which the IRS issued your refund check. You must fi le Form IL-1040-X ... leave Lines 12a and 12b blank. Use the Form IL-1040 ... on or after December 31, 2005, and ...other years 1040 forms. 2012. 2011. 2010. 2009. 2008. 2007. 2006. 2005. 2004. 2003. 2002. 2001. 2000. 1999. other related links. Guidance Documents. Mailing Addresses for Forms & Applications