How wealthy investors use ETFs to skirt capital gains taxes. The strategy is 'like magic,’ advisor says

High-net-worth investors are increasingly employing Section 351 conversions to defer significant capital gains taxes on appreciated assets by contributing them to new, privately seeded ETFs. This strategy offers a mechanism for tax-efficient rebalancing within the ETF wrapper, particularly as traditional tax-loss harvesting opportunities diminish. However, the approach requires strict asset diversification, typically involves high minimum investments, and can reduce liquidity by effectively 'locking' assets into the ETF, thereby necessitating careful consideration of its long-term implications for portfolio flexibility.

Analysis

High-net-worth investors are increasingly utilizing Section 351 conversions to defer capital gains taxes on highly appreciated assets held in taxable accounts, such as separately managed accounts (SMAs). This strategy involves exchanging a portfolio of assets for shares in a newly created exchange-traded fund (ETF), effectively postponing the tax liability until the ETF shares are sold. The primary appeal is that it provides a mechanism for tax-efficient rebalancing within the ETF structure, a valuable feature once traditional tax-loss harvesting opportunities have been exhausted by long-term market growth. However, this tax-deferral benefit is subject to significant constraints. The IRS imposes strict diversification requirements, mandating that no single stock can exceed 25% of the contributed assets and the five largest holdings cannot surpass 50%. Furthermore, the strategy is accessible only to a select group due to high investment minimums, such as the $1 million threshold cited by firms like Alpha Architect and Cambria Funds. A critical drawback highlighted by financial advisors is the substantial reduction in liquidity, as the investor's capital becomes 'stuck' in the specific ETF, with limited options for subsequent tax-free transfers and the original tax bill coming due upon sale.

Key Decisions for Investors

• Investors should consider Section 351 conversions as a niche strategy primarily suitable for high-net-worth clients whose diversified, taxable portfolios have significant embedded gains and diminished tax-loss harvesting potential.
• The core decision involves weighing the benefit of indefinite tax deferral against the significant loss of portfolio flexibility and liquidity, as assets are effectively locked into the chosen ETF with limited exit strategies.
• Before proceeding, a thorough due diligence process is essential to ensure the client's portfolio meets the strict IRS diversification rules and that they are comfortable with the high investment minimums and the long-term investment mandate of the receiving ETF.
• For asset managers, the growing interest in these conversions signals an opportunity to develop specialized ETF products that cater to the tax optimization needs of clients with large SMAs, though it requires navigating complex operational and regulatory frameworks.