How did McCulloch v. Maryland support Congress’s implied powers?

In the 1819 case McCulloch v. Maryland, the U.S. Supreme Court established that Congress possesses implied powers beyond those explicitly enumerated in the Constitution.2

Chief Justice John Marshall argued that the federal government is not restricted solely to powers specifically granted by the text. By interpreting the "necessary and proper" clause, the Court determined that Congress has the authority to employ any "appropriate" means to achieve legitimate constitutional ends.12

Specifically, the Court ruled that Congress could incorporate a national bank to facilitate tasks like tax collection and maintaining armed forces, even though the Constitution does not explicitly authorize the creation of corporations or banks. Marshall further noted that the Tenth Amendment intentionally omitted the word "expressly," confirming that federal power depends on a fair construction of the entire document rather than a narrow, literal reading. This decision became a cornerstone for the expansion of federal authority.21