The Tax Cuts and Jobs Act added 26 USC § 199A, which gives a 20% deduction for taxpayers' "qualified business income." This was intended to give small business owners a deduction to match the corporate tax cut. However, it does not apply to all small business owners, and reading the law and determining who qualifies can be quite confusing.
There are many nuances with this law involving earnings caps, business types, and other random things that you should go over with your accountant and/or...