Understanding the International Tax Implications of the One Big Beautiful Bill Act
Authored By Stefano Schmalzbauer, GreerWalker
The One Big Beautiful Bill Act (“OBBBA”), enacted July 4, 2025, represents the most sweeping set of business tax reforms since the Tax Cuts and Jobs Act of 2017. OBBBA makes permanent and expands many temporary provisions from prior law, introduces new incentives, and repeals or curtails a range of green energy tax benefits. This article provides a summary of the most significant international tax law changes, their effective dates, and practical implications for business taxpayers.