What Did International Shoe Co. v. Washington Establish?

International Shoe Co. v. Washington, decided by the Supreme Court in 1945, established the “minimum contacts” test that still governs personal jurisdiction in the United States. The decision replaced the older rule that a defendant had to be physically present in a state before that state’s courts could hear a case against them. In its place, Chief Justice Harlan Fiske Stone’s majority opinion held that a state may exercise jurisdiction over an out-of-state defendant when the defendant has enough of a connection to the state that being sued there does not offend “traditional notions of fair play and substantial justice.”¹

The Rule International Shoe Replaced

For nearly seventy years, American courts followed Pennoyer v. Neff (1878). Under Pennoyer, a state court’s power stopped at the state line. A court could enter a binding personal judgment against someone only if that person was served with process while physically inside the state, or if the person consented to the court’s authority. Legal process from one state could not, in the Court’s words, “run into another State and summon a party there domiciled to respond to proceedings against him.”²

That framework worked when businesses stayed local. It broke down as the national economy grew. Corporations could send agents across state lines, profit from distant markets, and then argue they were immune from suit in those states because the corporate “person” was never physically there. By the 1930s, courts were stretching Pennoyer with fictions like “implied consent” and “corporate presence,” but the workarounds lacked a coherent principle.³

The Facts That Set Up the Ruling

International Shoe was incorporated in Delaware and headquartered in St. Louis, Missouri, where it manufactured shoes. Between 1937 and 1940, it employed eleven to thirteen salesmen who lived in Washington State. They worked under the direct supervision of sales managers in St. Louis and were paid on commission.¹

The salesmen showed samples to buyers, often renting hotel rooms as temporary showrooms, and sent orders back to Missouri for approval. Accepted orders shipped from outside Washington directly to buyers inside the state. The company kept no retail stores, offices, or warehouses in Washington. The whole structure was designed to keep the company’s formal presence in Missouri while it profited from the Washington market.

The dispute arose over money. Washington’s unemployment compensation law required employers to contribute a percentage of their employees’ wages to the state fund. The state served a notice of assessment on one of the resident salesmen and mailed a copy to Missouri. International Shoe refused to pay and challenged Washington’s authority to sue it at all, arguing it was not “present” in the state under the existing rules.

The Constitutional Question the Court Answered

The case asked when the Fourteenth Amendment’s Due Process Clause allows a state to bring an out-of-state corporation into its courts. Under Pennoyer, a corporation that kept its formal address elsewhere was essentially untouchable. But International Shoe was employing more than a dozen people in Washington, earning substantial revenue there, and then refusing to contribute to the state’s unemployment fund on the theory that it had no legal presence.

The company argued the salesmen’s activities did not amount to “doing business.” No contracts were finalized in the state. No inventory was stored there. Washington countered that the company was enjoying the protection of its laws and the benefits of its marketplace while refusing the corresponding obligations. The Court needed a standard that balanced a state’s regulatory interest against a defendant’s due-process protection from being forced to litigate in a forum where it had no meaningful connection.

The Minimum Contacts Test

Writing for a seven-justice majority, Chief Justice Stone announced the standard that would reshape American civil procedure. Due process requires that a defendant not physically present in a state have “certain minimum contacts with it such that the maintenance of the suit does not offend traditional notions of fair play and substantial justice.”¹

The Court moved away from the all-or-nothing question of physical presence and replaced it with a sliding scale. A single isolated transaction with no real connection to the state would not justify jurisdiction. Systematic and continuous business operations generating substantial revenue would. Most cases fall between those poles, and the Court left room for lower courts to weigh the facts.

The analysis is not mathematical. Courts look at both the quantity and the quality of a defendant’s contacts. A company that sends a dozen employees into a state, has them work there year-round, and earns significant income from local customers has a different relationship to that state than a company whose product happened to pass through on a truck. The underlying idea is reciprocity: a company that enjoys the benefits and protections of a state’s laws should reasonably expect to answer for disputes arising from that activity in the state’s courts.⁴

Fair Play and Substantial Justice

Minimum contacts alone do not end the analysis. Even when a defendant has significant connections to a state, exercising jurisdiction must also be reasonable. The Court built this second consideration directly into the test, so courts ask not just whether contacts exist but whether it is fair to require this defendant to litigate in this forum.

The Supreme Court later expanded on the reasonableness inquiry in Asahi Metal Industry Co. v. Superior Court (1987), pointing to factors such as the burden on the defendant, the forum state’s interest in the dispute, the plaintiff’s interest in convenient relief, judicial efficiency, and shared policy interests among the states.⁵ These factors work as a safety valve. A defendant with some contacts in a state might still escape jurisdiction if litigating there would be genuinely unreasonable.

How the Court Applied the Test

Applied to the facts, the outcome was not close. International Shoe had kept eleven to thirteen salesmen living and working in Washington for years. Their activities were systematic, continuous, and closely supervised from Missouri. They generated a substantial volume of orders from Washington customers, and large quantities of shoes were shipped into the state as a result.¹

The connection between the company’s contacts and the lawsuit was direct. Washington was taxing the wages the company paid to its Washington-based employees, and the dispute was whether those wages triggered an obligation under the state’s unemployment law. A company that employs people in a state and pays them wages there cannot credibly argue it has no relationship to that state when the state seeks to enforce its employment laws. The Court upheld Washington’s jurisdiction.⁴

Justice Black’s Concurrence

Justice Hugo Black agreed with the result but sharply criticized the majority’s reasoning. In his view, the case should have been resolved on simpler grounds: Congress had already authorized states to levy unemployment compensation taxes on employers engaged in interstate commerce, and the Court had twice upheld that authorization. The constitutional challenge was, as Black put it, “palpably without merit.”¹

Black’s deeper objection was to the minimum contacts test itself. He believed the Constitution gave states the power to tax and to open their courts to suits against corporations whose agents did business there. Conditioning that power on the judiciary’s sense of “fair play” introduced, in his words, “vague Constitutional criteria” that would constrain state authority more than the Constitution required. Black wanted a bright-line rule; the majority chose a flexible standard. History sided with the majority, but Black’s concern about vagueness proved prescient. Courts have spent eight decades working out how much contact is enough.

Two Kinds of Jurisdiction the Case Made Possible

International Shoe did not use the labels, but its logic laid the foundation for the distinction courts now draw between general and specific jurisdiction.

General Jurisdiction

General jurisdiction lets a state’s courts hear any claim against a defendant, even claims unrelated to anything the defendant did in that state. The threshold is correspondingly high. In Goodyear Dunlop Tires v. Brown (2011) and Daimler AG v. Bauman (2014), the Supreme Court held that a corporation is subject to general jurisdiction only where it is “at home,” which for most corporations means the state of incorporation and the state of the principal place of business.⁶ Even substantial and continuous operations elsewhere are generally not enough.⁷

Specific Jurisdiction

Specific jurisdiction applies when the lawsuit itself arises out of or relates to the defendant’s contacts with the forum. The contacts required are less extensive than for general jurisdiction, but they must connect to the dispute. In Ford Motor Co. v. Montana Eighth Judicial District Court (2021), the Court clarified that the connection does not require strict causation. Claims must “arise out of or relate to” the defendant’s forum contacts, and the phrase “relate to” allows jurisdiction even without proof that the specific injury was directly caused by in-state conduct. Ford’s extensive marketing and sales in Montana and Minnesota supported jurisdiction over product liability claims there, even though the particular vehicles at issue had originally been sold elsewhere.⁸

Purposeful Availment

One of the most important ideas to grow out of the minimum contacts framework is purposeful availment. Jurisdiction cannot rest on random or accidental contacts. In Burger King Corp. v. Rudzewicz (1985), the Court held that specific jurisdiction requires “some act by which the defendant purposefully avails itself of the privilege of conducting activities within the forum State, thus invoking the benefits and protections of its laws.”⁹

World-Wide Volkswagen Corp. v. Woodson (1980) illustrates the limit. A family bought a car in New York, drove it to Oklahoma, and was injured in an accident there. They tried to sue the New York dealer and regional distributor in Oklahoma. The Court said no. The fact that a car is mobile and might foreseeably end up in Oklahoma was not enough. The question was whether the defendants themselves had purposefully directed activity toward Oklahoma, and they had not.¹⁰

Where the Framework Stands Now

In Mallory v. Norfolk Southern Railway Co. (2023), the Supreme Court held that a Pennsylvania statute requiring out-of-state corporations to consent to general jurisdiction as a condition of registering to do business there did not violate due process. Norfolk Southern, a Virginia corporation headquartered in Virginia, had registered in Pennsylvania, and a former employee sued the company there over injuries allegedly sustained in Ohio and Virginia. The majority emphasized that this was a consent theory, not a contacts theory, and that International Shoe’s minimum contacts test does not displace older consent-based jurisdiction.¹¹

The internet has forced courts to apply the minimum contacts framework to situations the 1945 Court could not have imagined. A company operating a website accessible in all fifty states has not automatically subjected itself to jurisdiction everywhere. Courts generally require more than a passive website to find purposeful availment. Active contacts, like selling products to forum residents, entering into contracts with them, or targeting them with advertising, carry more jurisdictional weight than being reachable online. The 1945 principle still applies: the question is whether the defendant deliberately directed activity toward the forum, not whether the forum’s residents could reach the defendant.

Why the Case Still Matters

International Shoe did something unusual for a Supreme Court decision. It replaced a clear but unworkable rule with a flexible standard that has lasted. The minimum contacts test has survived eight decades of economic change, from post-war industrialization through globalization through the digital economy. Every jurisdictional dispute involving an out-of-state defendant still begins with the question the Court framed in 1945: does the defendant have enough of a connection to this state that requiring it to defend a lawsuit here is fundamentally fair? The specific applications have evolved through dozens of later decisions, but the framework has held. That is what makes International Shoe one of the most consequential decisions in American procedural law.

1
Justia U.S. Supreme Court Center. International Shoe Co. v. Washington 326 U.S. 310 (1945)
2
Justia U.S. Supreme Court Center. Pennoyer v. Neff 95 U.S. 714 (1878)
3
Legal Information Institute. Founding Era to 1945 on Personal Jurisdiction
4
Legal Information Institute. International Shoe Co. v. State of Washington, Office of Unemployment Compensation and Placement
5
Justia U.S. Supreme Court Center. Asahi Metal Industry Co. v. Superior Court 480 U.S. 102 (1987)
6
Justia U.S. Supreme Court Center. Daimler AG v. Bauman 571 U.S. 117 (2014)
7
Justia U.S. Supreme Court Center. Goodyear Dunlop Tires Operations, S.A. v. Brown 564 U.S. 915 (2011)
8
Supreme Court of the United States. Ford Motor Co. v. Montana Eighth Judicial District Court (2021)
9
Justia U.S. Supreme Court Center. Burger King Corp. v. Rudzewicz 471 U.S. 462 (1985)
10
Justia U.S. Supreme Court Center. World-Wide Volkswagen Corp. v. Woodson 444 U.S. 286 (1980)
11
Justia U.S. Supreme Court Center. Mallory v. Norfolk Southern Railway Co. 600 U.S. ___ (2023)