Customer Notice: Due to COVID-19, ADOR's in-person lobby services are by appointment only and in compliance with local municipal and county face covering policies.
Arizona has moved the individual income taxes deadline to May 17, 2021, without penalties and interest. The deadline for first quarter tax year 2021 individual estimated tax payments remains April 15, 2021.
Corporations complete this form and submit it with their income tax return to determine if the corporation underpaid its estimated income taxes and the penalty, if any, due resulting from the underpayment.
Form Year | Form | Instructions | Published |
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2020 |
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01/01/2021 |
2019 |
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01/01/2020 |
2018 |
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01/01/2019 |
2017 |
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01/01/2018 |
2016 |
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01/01/2017 |
2015 |
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01/01/2016 |
2014 |
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01/01/2015 |
2013 |
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01/01/2014 |
2012 |
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01/01/2013 |
2011 |
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01/01/2012 |
2010 |
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01/01/2011 |
2009 |
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01/01/2010 |
2008 |
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01/01/2009 |
2007 |
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01/01/2008 |
2006 |
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01/01/2007 |
2005 |
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01/01/2006 |
2004 |
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01/01/2005 |
2003 |
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01/01/2004 |
2002 |
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01/01/2003 |
2001 |
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01/01/2002 |
2000 |
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01/01/2001 |