The approval of perpetual futures contracts in the US may expose traders to unforeseen tax and regulatory uncertainty if these products are ultimately classified as swaps rather than futures, according to CME Group Chairman and CEO Terry Duffy. In an interview with CoinDesk, Duffy pointed out that there is ambiguity from a tax perspective for all US participants due to the lack of clarity on whether perpetual futures should be treated as swaps or futures. This ambiguity stems from the periodic funding payments exchanged between long and short positions in perpetual contracts, which Duffy believes satisfy the statutory definition of a swap under US law. If perpetual contracts are deemed swaps, they would be taxed under 'ordinary' taxation, unlike traditional futures which are taxed under Section 1256 of the US tax code.

However, the IRS has not provided guidance on the tax treatment of perpetual futures, leaving market participants uncertain about how to report these positions. Legal experts note that the issue is complex, with the definition of swaps being extremely broad and the economic function of perpetual futures resembling that of traditional futures. The outcome of the court battle between CME and the Commodity Futures Trading Commission (CFTC) over the approval of perpetual futures contracts will significantly influence the tax treatment of these products, and the Supreme Court's 2024 Loper Bright decision may lead to federal courts playing a larger role in interpreting existing derivatives laws. This may result in a long and drawn-out process, with potential litigation and uncertainty over tax reporting for large institutions.