Doug McHoney (PwC’s International Tax Services Global Leader) is joined by Matt Ryan, PwC UK’s International Tax and Treasury Network Leader and the UK’s Pillar Two lead. Recording in Barcelona at PwC’s Global Tax Symposium, they take stock of Pillar Two implementation and the much‑watched ‘side‑by‑side’ agreement. Doug and Matt discuss policymakers’ evolving openness to net CFC tested income (NCTI) coexistence, the UK’s 2027 legislative path with potential effect from 2026, the UTPR safe harbor expiration, practical frictions around POPE reporting, M&A data gaps, and the lack of a global dispute mechanism. They also examine transitional versus permanent safe harbors, potential consequences if Section 899 re‑emerges—including expanded BEAT exposure—and quick UK updates on the 25% corporate rate and the digital services tax.