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3949-A form

Use this form to report suspected tax law violations by a person or a business.

2021 3949-A form
2021 3949-A form
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2020 3949-A form
2020 3949-A form
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2019 3949-A form
2019 3949-A form
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2018 3949-A form
2018 3949-A form
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2017 3949-A form
2017 3949-A form
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2016 3949-A form
2016 3949-A form
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2015 3949-A form
2015 3949-A form
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2014 3949-A form
2014 3949-A form
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2013 3949-A form
2013 3949-A form
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2010 3949-A form
2010 3949-A form
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2007 3949-A form
2007 3949-A form
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2005 3949-A form
2005 3949-A form
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