IRS Targets BOXX ETF Tax-Deferral Strategy in New Notice

Key Facts

The IRS issued Notice 2026-62 specifically targeting the tax-deferral strategy used by the Alpha Architect 1-3 Month Box ETF (BOXX). Seeking Alpha reported that the regulatory action aims to close a loophole that allowed investors to treat interest-like returns as capital gains.

The regulatory move addresses the fund's use of box spreads to mimic T-bill returns while maintaining tax advantages, with the potential for these rules to be applied retroactively. The instrument faces significant regulatory risk as tax deferral is the primary distinction between BOXX and standard T-bill funds, particularly for investors in taxable accounts.