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 12176 - 12200 of 17891Find 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 6627 Environmental Taxes 1990 Form 6627 Environmental Taxes 1989 Form 6627 Environmental Taxes 1987 Form 6627 Environmental Taxes 1983 Form 6627 Environmental Taxes 1981 Instruction 6627 Instructions for Form 6627, Environmental Taxes 2024 Instruction 6627 Instructions for Form 6627, Environmental Taxes 2023 Instruction 6627 Instructions for Form 6627, Environmental Taxes 2022 Form 6744 VITA/TCE Volunteer Assistor's Test 2007 Form 6744 VITA/TCE Volunteer Assistor's Test 2006 Form 6744 VITA/TCE Volunteer Assistor's Test 2005 Form 6745 VITA/TCE Volunteer Assistor's Retest 2005 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 Pagination First page « First Previous page Previous … Page 484 Page 485 Page 486 Page 487 Current page 488 Page 489 Page 490 Page 491 Page 492 … Next page Next Last page Last »