The approval of perpetual futures contracts in the US may expose traders to unforeseen tax and regulatory risks if these products are ultimately classified as swaps rather than futures, as stated by CME Group Chairman and CEO Terry Duffy. In an interview, Duffy highlighted the ambiguity surrounding the tax implications for US participants. The issue stems from the ongoing legal dispute between CME and the Commodity Futures Trading Commission (CFTC) regarding the approval of perpetual futures contracts.

The outcome of this case could substantially influence how the US approaches the rapidly expanding market of perpetual futures, particularly in terms of taxation by the Internal Revenue Service (IRS). Duffy argues that perpetual futures should be legally considered swaps due to the periodic funding payments between long and short positions, which aligns with the statutory definition of a swap under US law. This designation could lead to a different tax treatment, with gains and losses being taxed as ordinary income rather than the blended tax treatment available for futures under Section 1256 of the US tax code.

However, legal experts consider the issue complex, with the definition of swaps being broad and the economic function of perpetual futures resembling that of traditional futures. The Supreme Court's decision to eliminate the Chevron doctrine may give judges more discretion in interpreting derivatives laws, potentially leading to prolonged litigation. Ultimately, the tax treatment of perpetual futures may require separate guidance from the IRS, and until then, market participants, especially large institutions, may face uncertainty in reporting their trades.