Iowa Department of Revenue

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Form Name	Tax Year
IA 1120 Long Form return only 42-001	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
IA 1120A Short Form return only 42-030	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
IA 1120 and IA 1120A instructions only 42-002	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
IA 1120S S Corp return only 42-004	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
IA 1120S instructions only 42-005	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
IA 1120X Amended Corporation Return 42-024	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
Tax Payment Voucher - 42-019	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
Schedules F and G Net Operating and Alternative Minimum Tax Loss Carryovers 42-020	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
Schedule H Computation of Federal Tax Refund/Deduction 42-021	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
Schedules I and J IA 851 Affiliation/Consolidated Business Activity Ratio 42-022	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
Schedule of Partner or Shareholder Information 41-034 NOTE: This form is not valid for tax years after 2009	2009 2008 2007	2006 2005	2004 2003
IA 128 Research Activities Credit 41-128	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
IA 128S Alternate Simplified Research Activities Credit 41-124	2011 2010
IA 128A Alternate Calculation for Research Activities Credit 41-129 This form was replaced by IA 128S in 2010.	2009 2008 2007	2006 2005 2004 2003	2002 2001 2000
IA 133 New Jobs Credit 41-133	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
IA 135 E85 Gasoline Promotion Tax Credit 41-150	2011 2010 2009	2008 2007 2006	2005
IA 148 Tax Credits Schedule	2011 2010 2009	2008 2007	2006
IA 1139 Application for Refund Due to Carryback of Losses 42-026 NOTE: This form is not valid for tax years after 2008	2008 2007 2006 2005 2004	2003 2002 2001 2000	1999 1998 1997 1996
IA 1139F Application for Refund Due to the Carryback of Corporate Farming Losses 42-027 NOTE: This form is not valid for tax years after 2008	2008 2007	2006 2005	2004 2003
IA 3468 Investment Tax Credit 42-034	2011 2010 2009 2008 2007	2006 2005 2004	2003 2002 2001
IA 3468A Investment Tax Credit Carry Forward Schedule 42-033	Tax Year 2005 and earlier
IA 4136 Computation of Motor Fuel Tax Credit 41-005	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996
IA 4562A Iowa Depreciation Adjustment Schedule 41-105	2011 2010 2009 2008 2007	2006 2005 2004	2003 2002 2001
IA 4562B Iowa Depreciation Accumulated Adjustment Schedule 41-106	All years
IA 137 Ethanol Promotion Tax Credit 41-151	2011 2010 2009 2008
IA 6478 Ethanol Blended Tax Credit 41-142	2008 2007	2006 2005 2004	2003 2002
IA 8864 Biodiesel Blended Fuel Tax Credit 41-149	2011 2010 2009 2008	2007 2006	2005
Application for Iowa Wage-Benefits Tax Credit 42-011	Current MS Word fillable
IA 1120ES Estimated Tax Vouchers 45-004	2012 2011 2010 2009	2008 2007	2006 2005
IA 1120ES instructions only 45-010	2012 2011 2010 2009	2008 2007	2006 2005
IA 2220 Underpayment of Estimated Tax 45-006	2011 2010 2009 2008 2007 2006	2005 2004 2003 2002 2001	2000 1999 1998 1997 1996

Corporation Income Tax Forms ARCHIVE

Form Name

Tax Year