Find IRS forms, instructions, publications, and notices for prior years back to 1864. 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 - 25 of 55Find 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 6765 Credit for Increasing Research Activities 2023 Form 6765 Credit for Increasing Research Activities 2020 Form 6765 Credit for Increasing Research Activities 2019 Form 6765 Credit for Increasing Research Activities 2018 Form 6765 Credit for Increasing Research Activities 2017 Form 6765 Credit for Increasing Research Activities 2016 Form 6765 Credit for Increasing Research Activities 2015 Form 6765 Credit for Increasing Research Activities 2014 Form 6765 Credit for Increasing Research Activities 2013 Form 6765 Credit for Increasing Research Activities 2012 Form 6765 Credit for Increasing Research Activities 2011 Form 6765 Credit for Increasing Research Activities 2010 Form 6765 Credit for Increasing Research Activities 2009 Form 6765 Credit for Increasing Research Activities 2008 Form 6765 Credit for Increasing Research Activities 2007 Form 6765 Credit for Increasing Research Activities 2006 Form 6765 Credit for Increasing Research Activities 2005 Form 6765 Credit for Increasing Research Activities 2004 Form 6765 Credit for Increasing Research Activities 2003 Form 6765 Credit for Increasing Research Activities 2002 Form 6765 Credit for Increasing Research Activities 2001 Form 6765 Credit for Increasing Research Activities 2000 Form 6765 Credit for Increasing Research Activities 1999 Form 6765 Credit for Increasing Research Activities 1998 Form 6765 Credit for Increasing Research Activities 1997 Pagination Current page 1 Page 2 Page 3 Next page Next Last page Last »