Find IRS forms, instructions, publications, and notices for prior years back to 1864. If a PDF file won't open, try downloading the file to your device and opening it using Adobe Acrobat. View more information about Using IRS Forms, Instructions, Publications and Other Item Files. Click on a column heading to sort the list by the contents of that column. Enter a term in the Find box Click the Search button Showing 1 - 13 of 13Find Help Find Prior Year » RegExReplace » Product Number Prior Year » Revision Date Prior Year » Title Show per page 2550100200 SearchClear Product Number Title Revision Date Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 2022 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 2016 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 2013 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 2010 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 2008 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 2005 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 2001 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 1998 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 1995 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 1993 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 1990 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 1989 Form 8612 Return of Excise Tax on Undistributed Income of Real Estate Investment Trusts 1987