Though 2025 was a gamechanger in many ways, Tax Court went on resolving controversies both arcane and mundane. Inventive counsel tried extending Supreme Court pronouncements and stretching narrow jurisdictional limits as always, Tax Court dealt with the Supreme Court's efforts to bring "discipline" to Tax Court practice, and self-represented petitioners continued to wander into sand traps of their own making.

State Tax Planning with the “80/20 Company” Exclusion
Many multinational groups find that foreign-source dividends and other income earned by domestic affiliates are fully or partially subject to state income taxation, even where the federal system provides an exemption. This state-level “leakage” can be material – particularly in high-tax jurisdictions – and is often overlooked because the income appears sheltered at the federal level. For groups with predominantly foreign operations, a starting structure or a restructuring that causes one or more domestic affiliates to qualify as an “80/20 company” can substantially reduce or eliminate state taxation on that income.


