The Tax Cuts and Jobs Act created a deduction for households with income from sole proprietorships, partnerships, and S corporations, which allows taxpayers to exclude up to 20 percent of their pass-through business income from federal income tax. For upper-income taxpayers, the deduction is subject to several limits.| Tax Foundation
A pass-through business is a sole proprietorship, partnership, or S corporation that is not subject to the corporate income tax; instead, this business reports its income on the individual income tax returns of the owners and is taxed at individual income tax rates.| Tax Foundation