Doug McHoney (PwC’s International Tax Services Global Leader) is joined by Tom Patten, a London-based US International Tax Partner at PwC. Tom focuses on inbound investment into the U.S. and returns to the podcast for a timely discussion on Sections 891 and 899, two lesser-known but increasingly important provisions in the international tax landscape.  Doug and Tom discuss the resurgence of Section 891 in light of a January 2025 executive order that directs Treasury to identify discriminatory or extraterritorial foreign taxes. They cover how Section 891 operates, potential implications for non-US citizens, and its interaction with treaties. The episode then turns to proposed Section 899 and a new House proposal aimed at modifying the base erosion and anti-abuse tax (BEAT). Tom and Doug examine how these retaliatory measures differ, overlap, and might evolve. They close with practical advice for multinational taxpayers navigating an uncertain legislative environment and the future of Pillar Two negotiations.