Subject to tax at individual rates up to 39.6% An individual taxpayer generally may deduct
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TAX BULLETIN 2018-1: TAX REFORM SIGNED INTO LAW
PASS-THROUGH ENTITY TAXES
2017 Law 2018 Law
Subject to tax at individual rates up to 39.6% An individual taxpayer generally may deduct
20% of domestic qualified business income
from a partnership, S corporation, or sole
proprietorship?
In the case of a taxpayer who has qualified
business income from a partnership, S$
corporation or sole proprietorship, the
amount of the deduction is limited to the
greater of (i) 50% of the W-2 wages paid by
business or (ii) sum of 25% of W-2 wages paid
by business and 2.5% of business capital. This
wage limitation (i) does not apply if
taxpayer’s taxable income is less than
$157,500 ($315,000 for joint return); (ii)
applies fully if taxable income exceeds
$207,500 ($415,000 for joint return); and (iii)
applies proportionately if taxable income is
between those two limits
Top Rate: Pass-Through
Entities (S-corporations,
LLCs, LLPs and
Partnerships) / Sole
Proprietorships
Trusts and estates that own business interests
qualify for this deduction
Deduction is a post-AGl item, even for
taxpayers not itemizing deductions
Subject to tax at individual rates up to 39.6% For “specified service business,” {i) the 20%
deduction applies fully if taxpayer’s taxable
income is less than $157,500 ($315,000 for
joint return); (ii) there is no deduction if
taxable income exceeds $207,500
Pass-Through Entities — ($415,000 for joint return); and (ii) there is
Service Businesses a partial deduction if taxable income is
between those two limits..*
Service business includes accounting, law,
consulting, investing, etc., but excludes
engineering and architecture services
OBSERVATIONS — PASS-THROUGH ENTITIES
As originally proposed, the House and Senate took fundamentally different approaches to the taxation of pass-
through entities (sole proprietorships, partnerships, LLCs, LLPs and S-corporations). While they differed from each
other, they shared the goal of creating preferential treatment for certain pass-through business income. The Act
largely took the Senate’s approach but adopted a few elements of the House’s approach. The Act approaches
small business relief by permitting a non-itemized deduction of 20% of qualified business income; the remaining
80% would then be subject to normal tax rates. Therefore, the top tax rate for business income would be 29.6%
(80% x 37% = 29.6%). The provision is riddled with a host of complex limitations. For taxpayers not in the top
income tax bracket, the value of the deduction will depend on the marginal bracket that would otherwise be
imposed on the income.
Owners of service businesses (e.g., law, accounting and consulting, etc., but not engineering or architectural
services) generally would be eligible for the 20% deduction unless taxable income exceeds $315,000 for married
filing jointly ($157,500 for others). The benefit of the 20% deduction is phased out and fully eliminated over the
HOUSE_OVERSIGHT_029442
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