Craft & Sheppard's Supreme Court Review

Commerce Clause

 States and their political subdivisions have long-issued bonds for public purposes.  They often exempt interest earned on their own bonds from their state income taxes, but impose them on bond interest from other states.  Under a dormant Commerce Clause analysis, the Court has struck state laws that discriminate against out-of-state producers.  Kentucky exempted interest earned on publicly issued, in-state bonds, but taxed interest on out-of-state bonds.  In Dep't of Revenue v. Davis the Court determined that Kentucky’s differential tax scheme served legitimate public purposes and did not violate the dormant Commerce Clause.