The U.S. Supreme Court on June 1 decided not to allow Florida to sue California over its business tax policy, which it claimed unfairly deprives it and other states of tax revenue.
California created “an unconstitutional business income apportionment scheme that rewards corporations that keep their operations in California and penalizes those that move out,” Florida said in its bill of complaint filed with the high court in October 2025. Florida had asked the court to declare the policy unconstitutional.





