subchapter S
noun
-ˈes
: a subchapter of chapter 1 of the Internal Revenue Code that allows a small business corporation's taxable income to be computed in a manner similar to that used for a partnership see also S corporation at corporation
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“Subchapter S.” Merriam-Webster.com Legal Dictionary, Merriam-Webster, https://www.merriam-webster.com/legal/subchapter%20S. Accessed 31 Oct. 2025.
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