Under current law, the 3.8% net investment income tax applies to annual gross income of taxpayers that exceeds a $200,000 threshold ($250,000 for joint returns). An exception exists to exclude from taxation income earned from a business in which the taxpayer materially participates.
The Build Back Better Act would change the way that the NIIT applies to individual taxpayers by applying it to trade or business income without regard to whether the taxpayer materially participates in the operation of the business.
Under the proposal, the NIIT would apply to taxpayers earning more than $500,000 (joint filers) or $400,000 (single filers). Application of the NIIT would phase in for taxpayers who earn less than $100,000 more than the threshold levels. This rule would apply to tax years beginning in 2022 and thereafter.
We asked two professors and authors of ALM's Tax Facts with opposing political viewpoints to share their opinions about expanding the net investment income tax.
Below is a summary of the debate that ensued between the two professors.
Their Votes:
Bloink
Byrnes
Their Reasons:
Bloink: The wealthiest Americans have been able to avoid the NIIT if they materially participate in their own business. This is yet another loophole that only adds value for taxpayers who are wealthy enough to manipulate their circumstances to avoid the tax. We need to focus on eliminating as many of these loopholes as possible if we're going to make our way toward a more fair and equitable tax system in this country.