The Supreme Court will hear arguments Nov. 12 on the constitutionality of a state law that bars Maryland residents from deducting taxes paid to other states, on money earned there, from the city or county taxes they owe in Maryland.
Maryland’s top court ruled last year that the law violates the federal Constitution’s Commerce Clause by discouraging state residents from earning money outside the state.
In its 5-2 decision, the Court of Appeals said the law amounts to state regulation of interstate commerce, a power reserved to Congress under the Constitution.
The Court of Appeals stayed its ruling pending resolution of the state’s appeal to the justices. The Supreme Court is expected to decide the case, Maryland Comptroller v. Wynne, No. 13-485, before the end of June.