Picture a manufacturer in one country supplying components to a distributor in another. The contract is signed, the goods ship, invoices get paid – until they do not. When a commercial relationship breaks down across a national border, the hard question is rarely only who is right. It is which court decides, which country’s law applies, and whether any resulting judgment can be enforced where the losing side holds assets.
That cluster of questions is what lawyers call cross-border litigation, and it sits at the intersection of two bodies of law: domestic procedure and private international law. Private international law – sometimes called the conflict of laws – does not decide the merits of a dispute. It decides which legal system gets to decide.
What makes a dispute cross-border
A case becomes international when a foreign element is present: the parties are based in different states, the contract was performed in more than one country, the harm occurred abroad, or the assets that would satisfy a judgment sit outside the forum. Even a dispute between two companies from the same country can turn cross-border if a bank account, a subsidiary, or a vessel is located elsewhere.
The international element matters because it multiplies the decision points. Instead of one court, one law, and one enforcement mechanism, a cross-border case can involve several of each, and the parties may disagree about all of them.
The first hurdle: which court has jurisdiction
Jurisdiction is the authority of a court to hear a case and bind the parties. In cross-border disputes, courts commonly ask whether the defendant is domiciled in the country, whether the contract was performed there, whether the harm occurred there, or whether the parties agreed in advance on a forum.
Different legal systems weigh those factors differently, and some assert jurisdiction on broader grounds than others. That is one reason parallel proceedings can arise: each side may start a case in the country it considers most favourable, and both courts may regard themselves as competent.
Choice of court clauses: contracting around uncertainty
Businesses often try to remove the jurisdiction question in advance by including an exclusive choice of court clause – an agreement that disputes will be heard only in the courts of a named country. When such a clause is valid, the chosen court generally accepts jurisdiction and other courts are expected to decline.
The 2005 Hague Convention on Choice of Court Agreements gives that idea a treaty foundation among its contracting states. It requires the designated court to hear the dispute and requires other courts to suspend or dismiss proceedings covered by the agreement, subject to a limited set of exceptions. It also sets out grounds on which a resulting judgment may be refused recognition, and it bars a court from reviewing the merits of the judgment it is asked to enforce. More than thirty states and the European Union are bound by the Convention.
Even well-drafted clauses are not self-executing. Courts may examine whether the agreement was validly concluded, whether it covers the specific dispute, and whether a party lacked capacity. The practical lesson is that wording matters, and vague or one-sided clauses tend to invite argument.
Which country’s law applies?
Jurisdiction and choice of law are separate questions. A court in one country may accept a case but then apply the substantive law of another, because the parties chose it or because the relevant conflict-of-laws rules point there.
Choice-of-law rules differ by jurisdiction and by subject matter. For contracts, many systems start from the law the parties selected, falling back to the law of the country most closely connected to the agreement. For torts, they may look to where the wrongful act occurred or where the damage was suffered. Because these tests are not uniform, the same facts can produce different outcomes depending on where the case is heard – a reality that shapes settlement strategy as much as trial strategy.
Serving documents and gathering evidence abroad
A court’s judgment is only meaningful if the defendant was properly notified. Serving process across a border raises practical and legal problems: translation, unfamiliar procedural rules, and the risk that a foreign court will later refuse to enforce a judgment obtained without adequate notice.
The 1965 Hague Service Convention addresses this by establishing a main channel of transmission through designated Central Authorities in each contracting state, alongside other permitted methods. It does not prescribe the substantive rules of service; it governs how documents travel between countries. As of late 2024, the Convention had 84 contracting parties.
Gathering evidence abroad is a related challenge. Witnesses, documents, and physical evidence may sit under another country’s jurisdiction, and a court cannot simply compel them. The 1970 Hague Evidence Convention provides a framework for taking evidence abroad through letters of request, although not every contracting state accepts every method, and some limit pre-trial discovery. Dozens of states are party to it.
When two courts hear the same case
Parallel proceedings are a defining feature of cross-border disputes. One party may file in the place of the defendant’s domicile while the other files where the contract was performed, each hoping to reach a favourable judgment first.
Systems respond in different ways. Some apply a first-to-file rule, staying later proceedings while the first court decides jurisdiction. Others allow the second court to proceed and weigh which forum is more appropriate. Courts in some jurisdictions may issue orders restraining a party from continuing proceedings elsewhere, though whether such orders are available, and whether they will be recognised abroad, varies considerably.
The absence of a single global rule means parallel litigation can continue for years. That is one of the main reasons parties value arbitration clauses and clear choice of court agreements: they reduce the number of courts that can plausibly claim authority.
Recognition and enforcement: where judgments actually matter
Winning a case is not the same as collecting. A judgment has practical value only if it can be recognised and enforced where the defendant’s assets are located. This is the step where cross-border litigation most often becomes complicated, because enforcement depends on the law of the country where enforcement is sought and on any treaty in force between the two states.
The 2019 Hague Judgments Convention entered into force on 1 September 2023 between the European Union – applying in all member states except Denmark – and Ukraine, and it later took effect for the United Kingdom on 1 July 2025. Unlike the 2005 Convention, it does not require a choice of court agreement; it sets out bases for recognition and a limited list of grounds for refusal, and it generally prohibits review of the merits.
Within Europe, the Brussels I regime and the parallel Lugano Convention provide a more integrated system, under which judgments given in one member state are generally recognised in the others without a special procedure. Elsewhere, enforcement often rests on bilateral treaties, regional arrangements, or domestic law, and the requirements can differ sharply from one country to the next.
| Framework | What it covers | Typical reach | Enforcement approach |
|---|---|---|---|
| 2005 Hague Choice of Court Convention | Jurisdiction and enforcement where parties agreed on an exclusive court | European Union and a number of other states | Limited grounds to refuse recognition; merits not reviewed |
| 2019 Hague Judgments Convention | Recognition and enforcement without requiring a choice of court clause | In force since September 2023; membership expanding over time | Defined bases for recognition; limited refusal grounds |
| Brussels I / Lugano regimes | Jurisdiction and enforcement within a regional bloc | EU member states plus certain EFTA states | Recognition generally without a special procedure |
| New York Convention (1958) | Recognition and enforcement of foreign arbitral awards | 172 contracting states | Narrow grounds for refusing enforcement |
Sources: Hague Conference on Private International Law; EUR-Lex summary of the 2019 Judgments Convention; UNCITRAL status page for the New York Convention. Status figures reflect information available as of 2025 and change as states ratify or accede.
Arbitration: the parallel enforcement system
Many international contracts route disputes to arbitration rather than court. The attraction is largely practical: the 1958 New York Convention requires its 172 contracting states to recognise and enforce foreign arbitral awards and to give effect to agreements to arbitrate, and the grounds on which enforcement can be refused are deliberately narrow.
Arbitration is not a universal solution. It can be costly, the parties usually give up a right of appeal on the merits, and awards still have to be enforced through national courts. But for businesses that need a decision capable of travelling across borders, the enforcement network built around the New York Convention is often the decisive factor.
What cross-border litigation costs in practice
Costs in international cases are shaped by translation, travel, multiple sets of counsel, expert evidence, and the possibility of enforcing or resisting enforcement in more than one country. Fee arrangements vary widely: some matters are billed hourly, some on fixed or capped fees, and some through conditional or third-party funding arrangements where permitted.
Budgeting is difficult because the procedural path is uncertain. A case that settles after one jurisdiction ruling can cost far less than one that litigates jurisdiction, merits, and enforcement in sequence. Parties also weigh the cost of collection: a favourable judgment against a defendant with no reachable assets may not be worth pursuing, which is why lawyers often assess asset tracing and protective measures early.
Where costs can be recovered from the losing party, the rules differ. Some jurisdictions follow the English rule, under which the unsuccessful side generally pays a portion of the winner’s costs; others, including the United States federal courts in most cases, require each side to bear its own costs absent a specific basis. That asymmetry can influence where a party chooses to bring a claim.
Cross-border cases often develop slowly, with jurisdiction rulings, appeals, and enforcement steps stretching across years and several countries. For readers who want further legal reporting, international business and legal news can offer useful context on how such matters evolve, though official court registers, treaty status tables, and the judgments themselves remain the authoritative record.
Frequently asked questions
What does cross-border litigation mean?
It describes court proceedings in which a foreign element is present – for example, parties based in different countries, a contract performed abroad, or assets located outside the forum. The dispute is heard by a national court, but more than one legal system may be involved.
Can a court in one country enforce a judgment from another?
Often it can, but the path depends on the law of the enforcing country and on any treaty between the two states. Regional regimes such as Brussels I and Lugano, and conventions such as the 2005 and 2019 Hague instruments, make recognition more predictable between their parties. Outside those frameworks, enforcement may rely on domestic law or bilateral arrangements.
What is the difference between jurisdiction and choice of law?
Jurisdiction decides which court can hear the case. Choice of law decides which country’s substantive rules the court applies. A court may accept jurisdiction yet apply the law of a different country.
Is arbitration better than litigation for international disputes?
It depends on the objectives. Arbitration can offer confidentiality, flexibility, and awards that are widely enforceable under the New York Convention. Litigation can offer public proceedings, broader discovery in some systems, and rights of appeal. Many contracts choose one route in advance to avoid uncertainty.
How long does cross-border litigation take?
There is no universal timeframe. Timelines vary with the complexity of the case, the number of jurisdictions involved, court backlogs, and whether parallel or enforcement proceedings arise. Disputes that remain contested across multiple countries commonly take considerably longer than single-jurisdiction cases, so parties frequently build timing into their commercial planning.
What is an exclusive choice of court agreement?
It is a contract term designating the courts of one country as the only forum for disputes. Where the agreement is valid and the relevant treaty applies, the chosen court is expected to hear the case and other courts are expected to decline. The 2005 Hague Convention gives such clauses effect among its contracting states.
The takeaway: procedure decides as much as substance
The recurring lesson in cross-border litigation is that procedure decides as much as substance. A party can have a strong claim and still fail in practice if it cannot establish jurisdiction, serve the defendant properly, or enforce the judgment where the money is.
That is why international contracts increasingly treat dispute resolution as a design problem. Naming a forum, choosing a governing law, and deciding between courts and arbitration before a dispute arises can determine whether a remedy is ever collectible. The law is not static either: the Hague Judgments Convention’s gradual expansion shows that states continue to build bridges between their legal systems, even where those bridges remain uneven and incomplete. For anyone drafting or signing international agreements, the safest habit is to plan for enforcement first and argue about liability second.
