You can sue someone in another state, but only if a court there has legal authority over that person and you can jump through some extra procedural hoops. That authority is called personal jurisdiction, and it depends on the defendant’s connections to the state where you file. Get it wrong and the case is dismissed before a judge ever looks at your claim.
When a Court Can Reach an Out-of-State Defendant
Under the Fourteenth Amendment’s Due Process Clause, a defendant must have enough of a connection to the state that being hauled into court there doesn’t offend basic fairness.1Cornell Law School. 14th Amendment U.S. Constitution Courts sort that connection into two categories, and which one applies changes what you can sue for.
General Jurisdiction
General jurisdiction lets a court hear any claim against the defendant, even one that has nothing to do with the state. The bar is high. For individuals, it exists only in the state where they’re domiciled, meaning where they actually live. For corporations, it exists only where the company is incorporated or has its principal place of business. The Supreme Court locked this down in 2014, holding that a corporation isn’t subject to general jurisdiction in every state where it happens to do substantial business.2Justia Law. Daimler AG v. Bauman, 571 U.S. 117 (2014) A company can sell millions of dollars of product in your state and still not be sueable there for unrelated claims.
Specific Jurisdiction
Specific jurisdiction is narrower but much more common in interstate disputes. It applies when the defendant’s own conduct in the state gave rise to your claim. A company that shipped you a defective product, a driver who caused a wreck while passing through, a business that signed a contract to be performed there — each can be sued in that state over that specific dispute. The test is whether the defendant has minimum contacts with the state and whether your lawsuit arises from those contacts.
The State’s Long-Arm Statute
Even when the constitutional test is met, the state’s courts also need a statute authorizing them to reach a nonresident. These long-arm statutes list the situations that trigger jurisdiction: doing business in the state, causing an injury there, owning property inside its borders. Some states extend their long-arm statutes to the full limits the Constitution allows; others stop at a shorter list of qualifying acts. Check the specific statute for the state where you plan to file. If the defendant’s conduct doesn’t fit within it, the court will dismiss the case even if the constitutional minimum contacts test is satisfied.
Check the Contract First
If your dispute grows out of a contract, two clauses can override everything else about where and how you sue.
A forum selection clause specifies which court handles disputes. These are presumptively enforceable, and the Supreme Court has held that courts should honor the parties’ choice of forum in all but the most exceptional circumstances. If you signed a contract agreeing to litigate in Delaware, a court in Texas will almost certainly send you to Delaware. Private inconvenience — the fact that it’s expensive to litigate far from home — won’t get you out, because you waived that objection when you signed.
An arbitration clause is more powerful still. Under the Federal Arbitration Act, if your dispute falls within a valid arbitration agreement, the court must stay the lawsuit and send the parties to arbitration. The case doesn’t get dismissed outright, but the effect is the same: your dispute is resolved privately, not in court, and the arbitration clause controls where and how that happens. Arbitration clauses are extremely common in consumer contracts, employment agreements, and commercial deals. Read that provision before you plan anything else.
State Court, Federal Court, or Small Claims
Once jurisdiction is possible somewhere, you have to pick which courthouse.
Federal courts can hear cases between citizens of different states when the amount in dispute exceeds $75,000, exclusive of interest and costs.3Office of the Law Revision Counsel. 28 USC 1332 – Diversity of Citizenship; Amount in Controversy; Costs This is called diversity jurisdiction, and it requires complete diversity: every plaintiff must be from a different state than every defendant. Share a home state with any single defendant and diversity fails. Below $75,000, you’re generally in state court.
Even if you file in state court, the defendant can sometimes force the case into federal court through removal, provided the case meets diversity or federal-question requirements. One catch: a defendant sued in their own home state can’t remove based on diversity alone.4Office of the Law Revision Counsel. 28 USC 1441 – Removal of Civil Actions
Jurisdiction tells you which state’s courts can hear the case. Venue narrows it to which specific courthouse. In federal court, venue is proper in the district where any defendant resides (if all defendants live in the same state), where a substantial part of the events took place, or, failing those, any district where a defendant is subject to personal jurisdiction.5Office of the Law Revision Counsel. 28 USC 1391 – Venue Generally State courts follow similar patterns. Even a proper venue can be challenged under forum non conveniens if another court is clearly better suited; a dismissal on those grounds isn’t permanent, and you can refile in the more appropriate court.
For smaller disputes, small claims court can cut costs sharply. Dollar limits range from $2,500 to $25,000 depending on the state, with most between $5,000 and $12,500. Procedures are simplified and attorney involvement is minimal. You still need personal jurisdiction over the defendant, though, and getting an out-of-state defendant to actually show up is a practical challenge that small claims procedures don’t solve.
Serving the Papers in Another State
The case doesn’t officially start until the defendant is served with the complaint and summons. Bad service is one of the most common ways interstate lawsuits get derailed.
In federal court, an individual defendant within the United States can be served by personal delivery, by leaving the documents at their home with someone of suitable age who lives there, or by delivering them to an authorized agent.6Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons You can also follow the service rules of the state where the federal court sits or where the defendant is served. State rules vary; some require a licensed process server, some accept certified mail with a return receipt. Private process servers typically run $20 to $100 per job, higher for hard-to-find defendants or rush jobs.
Federal rules give the defendant a reason to cooperate. You can mail a request to waive formal service; a defendant who signs and returns the waiver gets 60 days from the date the request was sent to answer the complaint instead of the usual 21 days after being served.6Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons A defendant who refuses without good cause gets stuck with the costs of formal service, including reasonable attorney fees for the motion to recover them. When personal service means hiring someone across the country, that cost-shifting bites.
Which State’s Law Governs, and How Long You Have to File
Filing in one state doesn’t mean that state’s law applies. Courts use choice-of-law rules to pick which jurisdiction’s substantive law controls, and the answer often varies by claim type. In contract disputes, courts look at where the contract was negotiated, where it was to be performed, and where the parties are located, and they generally honor a choice-of-law clause if the contract has one. In tort claims, many states apply the law of the place where the injury happened, while others weigh each state’s interest in the outcome.
The choice matters. Damages caps, available defenses, and even the elements of the claim differ from state to state. A negligence case worth six figures under one state’s law can be worth half that under another’s.
Filing deadlines are similarly slippery. Statutes of limitations vary by state and claim type: personal injury deadlines run one to six years depending on the state, while contract deadlines can stretch much longer. When you file in one state over a claim that arose in another, many states apply a borrowing statute that forces the court to use the shorter of the two limitations periods. The idea is to stop people from forum shopping their way past an expired deadline. Treat the shortest potentially applicable deadline as the real one. Late filing is one of the few mistakes no amount of legal skill can fix.
What Interstate Litigation Actually Costs
Suing across state lines is meaningfully more expensive than suing locally, and several categories catch people off guard.
Your attorney probably isn’t licensed in the state where you need to file. To appear there, they’ll apply for temporary permission called pro hac vice admission, which usually means filing a motion, paying a fee (commonly $200 to $400), and associating with a local attorney licensed in that state. You end up paying two lawyers: your own, who knows your case, and local counsel, who knows the court.
Filing fees for a civil case run roughly $350 to $450 in state court, with federal court in a similar range. If the case reaches trial, add airfare, hotels, and time off work for you, your attorney, and your witnesses. In federal court, the losing party can be ordered to pay certain costs, including clerk and marshal fees, transcripts, witness fees, and printing.7GovInfo. 28 USC 1920 – Taxation of Costs Witness travel expenses, including mileage, tolls, parking, and common carrier fares, are also taxable against the loser.8Office of the Law Revision Counsel. 28 USC 1821 – Per Diem and Mileage Generally; Subsistence Some jurisdictions also let a defendant demand that a nonresident plaintiff post a bond as security for costs, which can add an early financial hurdle.
Collecting on a Judgment in Another State
Winning doesn’t automatically let you touch the defendant’s bank account or property in another state. You have to domesticate the judgment by registering it with a court where the assets are located.
The Full Faith and Credit Clause requires every state to honor the judicial proceedings of every other state.9Library of Congress. Article IV Section 1 – U.S. Constitution Most states have streamlined the process through the Uniform Enforcement of Foreign Judgments Act: file an authenticated copy of the judgment with the local court clerk along with an affidavit identifying the parties, and it’s treated as if it originated there. Once domesticated, the judgment can be enforced with the same tools available for local judgments: wage garnishment, bank levies, property liens.
The defendant can still challenge enforcement on narrow grounds, usually by arguing the original court lacked jurisdiction or that the judgment has already been paid. States also impose their own limitations periods on judgment enforcement, so a judgment still valid where you won it can become unenforceable elsewhere if too much time passes. Don’t sit on it. Domesticate promptly in any state where the defendant holds assets worth chasing.