Find IRS forms, instructions, publications, and notices for prior years back to 1864.

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Product Number Title Revision Date
Form 4466 Corporation Application for Quick Refund of Overpayment of Estimated Tax 1971
Form 4466 Corporation Application for Quick Refund of Overpayment of Estimated Tax 1970
Form 4466 Corporation Application for Quick Refund of Overpayment of Estimated Tax 1969
Form 4466 Corporation Application for Quick Refund of Overpayment of Estimated Tax 1968
Form 4469 Excess Medicare Tax Credit 1990
Publication 4505 Modernized e-File Test Package for Forms 1065/1065-B 2011
Publication 4505 Modernized e-File Test Package for Forms 1065/1065-B 2010
Publication 4505 Modernized e-File Test Package for Forms 1065/1065-B 2009
Publication 4505 Modernized e-File Test Package for Forms 1065/1065-B 2008
Publication 4505 Modernized e-File Test Package for Forms 1065/1065-B 2006
Form 4506 Request for Copy of Tax Return 2015
Form 4506 Request for Copy of Tax Return 2013
Form 4506 Request for Copy of Tax Return 2012
Form 4506 Request for Copy of Tax Return 2011
Form 4506 Request for Copy of Tax Return 2010
Form 4506 Request for Copy of Tax Return 2008
Form 4506 Request for Copy of Tax Return 2006
Form 4506 Request for Copy of Tax Return 2005
Form 4506 Request for Copy of Tax Return 2004
Form 4506 Request for Copy of Tax Return 1997
Form 4506 Request for Copy of Tax Return 1994
Form 4506 Request for Copy of Tax Return 1992
Form 4506 Request for Copy of Tax Return 1989
Form 4506 Request for Copy of Tax Return 1987
Form 4506 Request for Copy of Tax Return 1985