November 2025

DOR “Fact Sheet” Was Not An “Other Officially Adopted Publication” And Was Not Owed Any Deference in Mississippi Tax Appeals

In an administrative tax appeal, Mississippi law requires the Board of Tax Appeals (the “BTA”) “give deference to the department’s interpretation and application of the statutes as reflected in duly enacted regulations and other officially

On October 28, 2025, Florida filed a motion for leave to file a bill of complaint in the United States Supreme Court challenging California’s business income tax apportionment regulation, alleging it unconstitutionally discriminates against out-of-state corporations. The case invokes the Court’s original jurisdiction over disputes between states, a mechanism reserved for matters of sufficient seriousness