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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.

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Additional Credit for Increased Research Activities for Basic Research Payments

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Filed by individuals, corporations, and partnerships to claim the Additional Credit for Increased Research Activities for Basic Research Programs.

Form Number: 
346
Category: 
Tax Credits Forms
Form Year Form Instructions Published
2020 PDF icon Download (273.88 KB) PDF icon Download (333.79 KB) 01/01/2021
2019 PDF icon Download (259.25 KB) PDF icon Download (4.45 MB) 01/01/2020
2018 PDF icon Download (258.68 KB) PDF icon Download (68.08 KB) 01/01/2019
2017 PDF icon Download (660.56 KB) PDF icon Download (304.63 KB) 01/01/2018
2016 PDF icon Download (272.27 KB) PDF icon Download (71.18 KB) 01/01/2017
2015 PDF icon Download (155.03 KB) PDF icon Download (32.39 KB) 01/01/2016
2014 PDF icon Download (71.17 KB) PDF icon Download (32.29 KB) 01/01/2015
2013 PDF icon Download (68.9 KB) PDF icon Download (35.01 KB) 01/01/2014
2012 PDF icon Download (62.82 KB) PDF icon Download (38.49 KB) 01/01/2013
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Arizona Department of Revenue
(602) 255-3381
1600 West Monroe Street
Phoenix, AZ 85007
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