Arizona Department of Revenue v. Blaze Construction Co., 526 U.S. 32 (1999), was a United States Supreme Court case in which the court held that a state may tax the revenue of a government contractor received from work for the federal government. The states are not allowed to issue taxes where the legal incidence of the tax is on the federal government, but they can issue taxes where the economic burden of the tax falls on the federal government; i.e., the existence of the tax may indirectly increase the federal government's expenses.