Will the new tax bill affect flow through entities' / S Corps' 2017 tax rates? Specifically, will you be able to take advantage of the new 20% deduction for 2017?

  • I'm pretty sure the new tax bill doesn't kick in until 2018
    – JohnFx
    Jan 9, 2018 at 21:58
  • @JohnFx: a few parts of it affects 2017 or previous years
    – user102008
    Jan 20, 2018 at 18:27

1 Answer 1


Section 11011 of H.R. 1 (pages 10-18) lays out the 20 percent deduction for pass through entities. Subsection (e) reads:

(e) EFFECTIVE DATE.—The amendments made by this section shall apply to taxable years beginning after December 31, 2017.

That is, the 20% deduction does not apply to the return you are filing for 2017.

Your first question, "how will the new tax bill affect tax rates," is far too general and situation-specific to answer in any useful way, unfortunately.

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