The most expensive jurisdiction mistake in an international sale is often made before anyone hires a lawyer. Someone in the business says, “The buyer is in France, so French law applies,” or “The contract says New York law, so the CISG cannot matter,” or “We chose arbitration, so courts are irrelevant.”

Each statement can be wrong.

A cross-border sales contract may involve several separate questions: which substantive law governs, whether the CISG applies, which court or tribunal can hear the dispute, which mandatory rules cannot be contracted away, and where a judgment or award can actually be enforced. Those questions interact, but they are not interchangeable.

This guide is a practical jurisdiction checklist for commercial teams. It does not select a governing law for any live transaction. That conclusion requires the actual contract, places of business, treaty relationships, local legislation and qualified advice.

Start with five coordinates, not the company logo

Before debating “which law,” write down:

  1. each party's legal entity and place of business;
  2. the place where the goods are manufactured, delivered and accepted;
  3. the contract's governing-law clause;
  4. the dispute-resolution clause;
  5. where the counterparty has assets that could realistically satisfy a claim.

That fifth point is frequently missing from contract review. Winning in one place and collecting in another are different projects.

A useful one-page map looks like this:

Question Contract answer Legal question still open
Governing law “Law of State X” Does the clause include or exclude the CISG?
Forum “Courts of City Y” Is the clause exclusive and effective locally?
Arbitration ICC clause Which version of rules, seat and scope apply?
Delivery Incoterms® rule + place What does it allocate, and what remains in the sales contract?
Enforcement not stated Where are assets, and what recognition route exists?

The point is not to solve the dispute on a spreadsheet. It is to stop one clause from being asked to answer five questions.

Question 1: does the CISG enter the picture?

UNCITRAL describes the CISG as a uniform law for qualifying international sales of goods. It can apply through the Convention's own scope rules, but the result depends on facts such as the parties' places of business, Contracting State status, conflict-of-laws analysis and any effective exclusion.

Two shortcuts are unsafe.

Shortcut A: “We picked a national law, so the CISG disappears.”
Not necessarily. In some legal systems the CISG forms part of the chosen law for covered international sales unless effectively excluded.

Shortcut B: “It is international, so the CISG automatically applies.”
Also not necessarily. The transaction may fall outside scope, the parties may have excluded it, or a particular treaty relationship or declaration may matter.

Use the UNCITRAL status table for treaty status, then ask local counsel how the chosen-law wording works in the relevant legal system.

Question 2: what does the governing-law clause actually choose?

Choice-of-law clauses are valuable, but the words matter.

The HCCH Principles on Choice of Law in International Commercial Contracts support party autonomy as a general commercial principle, but they are soft-law principles rather than a worldwide statute. In the EU, Rome I provides a binding conflict-of-laws framework within its scope and also contains rules on overriding mandatory provisions and situations where choice cannot simply erase all otherwise applicable protections.

Commercial teams should therefore ask:

  • Is the clause broad enough to cover non-contractual issues that may be pleaded alongside contract claims?
  • Does it address the CISG expressly?
  • Are there mandatory local rules that could still apply?
  • Is the chosen law familiar to the forum or tribunal?
  • Does the choice create avoidable translation or expert-law costs?

The “best” law is not automatically the law the drafting party knows best.

Question 3: forum and governing law are different

A contract can choose the law of one jurisdiction and the courts of another.

That may be intentional. It may also create cost.

The 2005 HCCH Choice of Court Convention provides a treaty framework for qualifying exclusive choice-of-court agreements among relevant Contracting Parties, but its application depends on scope, treaty relationships and the agreement itself.

Before relying on a court clause, confirm:

  • exclusive or non-exclusive;
  • exact court or jurisdiction named;
  • whether all relevant parties are bound;
  • whether interim relief may be sought elsewhere;
  • how service will occur;
  • whether a resulting judgment has a realistic recognition path where assets sit.

A beautifully drafted court clause is not useful if the entity holding the assets is elsewhere and enforcement was never considered.

Question 4: arbitration solves some cross-border problems, not all of them

Arbitration can provide a neutral forum and may benefit from international award-enforcement frameworks where applicable. But an arbitration clause does not make courts vanish.

Courts may still become relevant for interim measures, challenges, recognition or enforcement, depending on the seat, institutional rules and local law.

If the contract says “ICC arbitration,” the commercial team should still know:

  • seat;
  • language;
  • number of arbitrators;
  • scope of covered disputes;
  • current applicable institutional rules;
  • emergency or interim mechanism;
  • likely place of enforcement.

The 2026 ICC Arbitration Rules took effect on 1 June 2026. That date matters only where the parties' clause and applicable rules make that version relevant; it is not a universal rule for all arbitrations.

Question 5: national sales law can still matter

Even where the CISG is discussed, national law can remain important for issues outside the Convention's scope or where the Convention does not apply.

The UK's Sale of Goods Act 1979 is a concrete example of a national sales statute with its own scope and amendments. Other jurisdictions use civil codes, commercial codes or state-level rules.

This is why “international contract” does not mean “international law replaces domestic law.”

Ask the local lawyer to separate:

  • issues governed by the international sales regime, if any;
  • issues governed by the chosen national law;
  • mandatory local rules;
  • procedural rules of the forum;
  • enforcement law at the asset location.

Question 6: delivery terms are not a governing-law clause

Incoterms® rules allocate defined delivery obligations, costs and risks when properly incorporated. They do not choose the entire governing law, decide every quality dispute, determine title in all systems, or replace payment and dispute-resolution clauses.

A contract saying “DAP Toronto, Incoterms® 2020” still needs clear rules for price, payment, specifications, inspection, remedies, law and disputes.

The mistake is not using Incoterms. The mistake is expecting a three-letter trade term to do the work of a complete sales contract.

A jurisdiction matrix worth saving

Before a material cross-border sale, fill this out:

Layer What to confirm
Party identity exact legal entities and business locations
Sales regime CISG applicability or exclusion
Chosen law wording, scope, mandatory-rule limits
Forum court or arbitration, seat, exclusivity
Delivery incorporated Incoterms rule and named place
Evidence language, electronic records, originals
Remedy termination, damages, interest, specific relief
Limitation applicable time limits and accrual rules
Enforcement asset location and recognition route
Insolvency what changes if counterparty enters formal proceedings

Do not wait for default to discover that nobody knows the tenth row.

The local-counsel questions that actually move the matter forward

Instead of asking, “Which country's law applies?”, send a tighter brief:

  • Does this clause validly choose the stated law?
  • Is the CISG part of that law for this transaction, excluded, or inapplicable?
  • Which mandatory rules could override the parties' choice?
  • Is the forum clause enforceable against all parties?
  • What is the limitation deadline?
  • What notice or cure steps must occur before termination or suit?
  • If we win, what is the likely recognition or enforcement route against the known assets?
  • Which conclusion would change if the facts about place of business or delivery are wrong?

Those are answerable legal questions. “What law applies?” without the contract and facts is not.

The six-line jurisdiction card to keep with the contract

Before anyone writes “the governing law is obvious,” create a card that fits on one screen:

  1. Seller entity and place of business
  2. Buyer entity and place of business
  3. Express governing-law clause
  4. Court or arbitration clause
  5. Potential international instrument and why it may apply
  6. Mandatory local issue that still needs advice

That card forces the team to separate three ideas that are often blurred together: the law governing the contract, the forum deciding the dispute, and the rules governing recognition or enforcement later.

A New York court clause, English governing law and delivery in France are not three versions of the same answer. They are three separate connecting facts. The same is true when a contract uses Incoterms® 2020: an Incoterms rule allocates defined delivery, risk and cost functions, but it does not by itself answer every governing-law, title, payment or dispute question.

For recurring trade, save the jurisdiction card with the signed contract rather than rebuilding it after an invoice goes unpaid.

Bottom line

International sales contracts do not live in one legal box.

The governing-law clause, CISG analysis, forum clause, delivery rule, mandatory local law and enforcement location each answer different questions. The safest operating habit is to map them separately before a dispute, and to confirm live legal conclusions with professionals qualified in the jurisdictions that actually matter.

General commercial information only, not legal advice. Treaty status, conflict-of-laws rules, court jurisdiction and sales law vary by jurisdiction and can change over time.

Related Reading

  • Sales Contracts Under Pressure: What Buyers and Sellers Need to Clarify Before They Escalate
  • The 18-Step Sales Contract Decision Checklist: Preserve Facts Before You Stop, Reject or Terminate
  • Negotiate, Mediate, Arbitrate or Litigate? Choosing a Sales Contract Resolution Path

Sources and Jurisdiction Boundaries