Nebraska Department of Revenue v. Loewenstein

We took this case to decide whether States may tax interest income derived from repurchase agreements involving federal securities. If the income that taxpayers earn by participating in such agreements constitutes interest on federal securities, then the taxation violates 31 U. S. C. § 3124(a), which exempts interest on “obligations of the United States Government” from taxation by States. On the other hand, if that income constitutes interest on loans to a private party, the taxation is not prohibited by the statute. With respect to the repurchase agreements at issue in this case, we…