---
title: "McCulloch v. Maryland"
type: Landmark Case
source: https://casebriefly.com/landmark-cases/mcculloch-v-maryland
---

# McCulloch v. Maryland

McCulloch v. Maryland established two foundational principles of constitutional law: that Congress possesses implied powers beyond those explicitly enumerated in the Constitution, and that federal law is supreme over state law under the Supremacy Clause. The case broadly construed congressional power and remains the leading authority on the Necessary and Proper Clause.

## Citation

17 U.S. (4 Wheat.) 316 (1819)

## Year

1819

## Court

Supreme Court of the United States

## Facts

Congress chartered the Second Bank of the United States in 1816. The State of Maryland enacted a law imposing a tax on all banks not chartered by the state, which effectively targeted only the federal bank's Baltimore branch. James McCulloch, the cashier of the Baltimore branch, refused to pay the tax. Maryland sued McCulloch and obtained a judgment in the state courts.

## Procedural History

The Maryland Court of Appeals affirmed the trial court's judgment against McCulloch. The Supreme Court granted review to address the constitutional questions.

## Issue

Does Congress have the constitutional authority to establish a national bank, and does a state have the power to tax an instrumentality of the federal government?

## Holding

The Court unanimously held that Congress had the power to incorporate the bank under the Necessary and Proper Clause, even though the Constitution does not explicitly grant the power to create a bank. The Court further held that Maryland's tax on the bank was unconstitutional because the power to tax involves the power to destroy, and states cannot impede valid constitutional exercises of federal power.

## Reasoning

Chief Justice Marshall reasoned that the Constitution derives its authority from the people, not the states, and therefore must be construed broadly. The Necessary and Proper Clause grants Congress the means to execute its enumerated powers, and 'necessary' does not mean absolutely indispensable but rather useful or conducive to the end. Because a bank was a convenient means of exercising Congress's fiscal powers, its creation was constitutional. Regarding the tax, Marshall held that allowing states to tax federal instrumentalities would give them the power to destroy those instrumentalities, which would be incompatible with federal supremacy.

## Impact

McCulloch dramatically expanded the scope of federal legislative power by establishing that implied powers are a legitimate source of congressional authority. The case provided the constitutional foundation for the enormous growth of federal power over the next two centuries. The anti-commandeering and intergovernmental tax immunity principles that flow from this case continue to shape federalism doctrine.

## Key Quotes

- Let the end be legitimate, let it be within the scope of the constitution, and all means which are appropriate, which are plainly adapted to that end, which are not prohibited, but consist with the letter and spirit of the constitution, are constitutional.
- The power to tax involves the power to destroy.
- We must never forget that it is a constitution we are expounding.

## Related Cases

- marbury-v-madison
- gibbons-v-ogden
- united-states-v-lopez
- national-federation-of-independent-business-v-sebelius

## Exam Relevance

McCulloch appears on exams in questions involving congressional power, federalism, and the scope of the Necessary and Proper Clause. Professors often test whether students can apply the 'let the end be legitimate' framework to new factual scenarios. It is also frequently tested alongside commerce power cases to evaluate the outer limits of federal authority.

## Study Tips

- Memorize the key language of the Necessary and Proper Clause test from Marshall's opinion.
- Understand how Marshall refuted the compact theory of the Constitution by locating sovereignty in the people.
- Be able to distinguish between the broad construction of 'necessary' in McCulloch and the narrower construction Maryland argued for.
- Connect this case to the NFIB v. Sebelius individual mandate analysis, which revisited the Necessary and Proper Clause.

## Doctrine Established

Implied Powers Doctrine / Necessary and Proper Clause

---
Source: [McCulloch v. Maryland — CaseBriefly](https://casebriefly.com/landmark-cases/mcculloch-v-maryland)
