Morris and Johnson v. United States was a Supreme Court case that dealt with the issue of whether or not the United States government had the right to seize property without due process of law. The case involved two individuals, Morris and Johnson, who had their property seized by the government without any notice or hearing. The government argued that it had the right to seize the property under the Confiscation Act of 1862, which allowed the government to seize property of individuals who had aided the Confederacy during the Civil War. The Supreme Court ruled in favor of Morris and Johnson, finding that the government did not have the right to seize property without due process of law. The Court held that the Confiscation Act of 1862 did not give the government the right to seize property without notice or hearing, and that the government must provide due process of law before seizing property. The Court also held that the government must provide compensation for any property that is taken without due process of law. This case established an important precedent in the area of property rights, as it established that the government must provide due process of law before seizing property. This case also established that the government must provide compensation for any property that is taken without due process of law. This case is still cited today in cases involving property rights and due process of law.

In Morris and Johnson v. United States, the Supreme Court was asked to decide whether a federal statute that imposed an income tax on individuals was constitutional. The majority of the court held that it was not, finding that Congress did not have authority under either the Necessary and Proper Clause or Article I, Section 8 of the Constitution to impose such a tax. Justice Field dissented from this opinion, arguing instead that Congress had sufficient power under both clauses to enact such legislation as part of its broad taxing powers granted by Article I, Section 8. He argued further that since taxation is necessary for government operations and since it has been used in various forms throughout history without any challenge to its constitutionality until now, then there must be some implied power given by these clauses which allows for taxes like this one.