A burgeoning tax strategy involving ETFs, often referred to as "351 conversions," is gaining traction among affluent investors as a way to circumvent immediate capital gains taxes. This practice enables individuals to transfer highly concentrated stock positions, or even entire investment portfolios, into an Exchange Traded Fund without triggering a taxable event. The U.S. Treasury Department is now scrutinizing this method, and an industry group representing over $45 trillion in assets, the Investment Company Institute, has requested clarification from the Treasury regarding how it views this growing strategy, which is being utilized by major fund structures like BlackRock Inc. and Vanguard Group.
Bloomberg estimates indicate that this loophole currently costs the Treasury Department approximately $48 billion in deferred or avoided capital gains taxes. The vast majority of these savings accrue to the highest-earning Americans. On average, the top 1% of American households save about $13,000 annually due to this ETF tax break, while those in the middle income bracket save roughly $23. If the entire mutual fund industry were to adopt an ETF share class using this strategy, the amount of additional deferred or avoided taxes could reach about $40 billion annually, with $35 billion directly benefiting individuals and $4 billion benefiting businesses.
Should the entire mutual fund industry embrace an ETF share class, the financial advantages for the wealthiest could expand significantly, with their tax savings potentially increasing by another $11,000 per year. Conversely, those in the middle of the wealth distribution would see only marginal additional savings. This growing trend has led to the coining of terms like "Black Holes for Capital Gains" to describe these lucrative tax deferral mechanisms within ETFs, highlighting concerns about fairness and revenue loss for the government. The specifics of this loophole rely on Section 351(e) of the tax code, which generally denies non-recognition of gains if a transfer to an investment company leads to diversification, but existing Treasury regulations allow for certain exemptions based on diversification tests.
