International Sales Contract: Key Clauses That Protect You

International sales contract guide: essential clauses (goods, price, Incoterm, payment, inspection, force majeure, law, disputes) with an export example.

Most export disputes do not start with bad faith. They start with a question nobody asked when the deal was agreed: who pays when the vessel is late, what happens if the copper price doubles, how many days the buyer has to complain about quality, which court decides. The sales contract is where those questions are answered while both parties still want the deal.

This lesson walks through the structure of an international sales contract clause by clause, shows which clauses protect you as an exporter and which ones the buyer will push for, explains how to choose the law and the forum, and shows how the contract must fit with the documents and the letter of credit. A worked example follows a real-life cable export.

Do you really need a written contract?

Under the CISG (the UN Convention on Contracts for the International Sale of Goods), a contract of sale need not be in writing and can be proved by any means, although a few contracting states have made a declaration requiring written form. Legally, an order and its confirmation by e-mail can create a binding contract. In practice you need a written document because:

• you will have to prove what was agreed if something goes wrong, often years later and before a foreign court or arbitral tribunal;
• banks ask for it: to open a letter of credit, issue a guarantee, finance the deal, or — under exchange-control rules such as Algeria's — to domicile the operation (see bank domiciliation);
• the purchase order and your general conditions often contradict each other, and only a signed contract settles which terms apply.

For small, repeated orders, a framework agreement plus individual purchase orders works well. For one-off orders, a signed proforma invoice that incorporates your general conditions may suffice. For large or complex sales, use a full contract; the ICC Model International Sale Contract is a useful starting point.

The structure of an international sales contract

Which clauses protect you as the exporter?

Payment and security. Write the method precisely: '20% advance by transfer within 7 days of signature; 80% by irrevocable letter of credit confirmed by a first-class bank in Algeria, available at sight, to be received by the seller at least 30 days before the shipment date'. Add that delivery time starts only when the advance and the credit are received, and that late payment bears interest.

Retention of title. The Incoterm transfers risk, not ownership. If you sell on credit, state that title remains with you until full payment. Its effectiveness against third parties depends on the law of the country where the goods are, so combine it with real security: a confirmed credit, a bank guarantee or export credit insurance.

Price revision. For products tied to volatile inputs (copper, steel, polymers, freight), link the price to a published index and state the formula and reference dates.

Claims period and limitation of liability. The CISG lets the buyer notify a non-conformity within a reasonable time after discovery and, at the latest, two years after handover. Contracts usually shorten this (for example 30 days after arrival for visible defects) and cap liability at a percentage of the contract value, excluding loss of profit and indirect damage.

Force majeure. Define the events, require notice within a few days, suspend obligations during the event and allow either party to terminate after a set period (for example 90 days). The ICC Force Majeure and Hardship Clauses (2020) can be incorporated by reference.

Applicable law and disputes

Choose the law expressly. If both countries are CISG contracting states, the CISG applies unless you exclude it, and it covers formation, obligations and remedies but not ownership or validity issues. Many exporters keep it: it is neutral and well known. Read the CISG and choice of law lesson before deciding.

For disputes, international arbitration (ICC or another recognised institution, with a neutral seat and the contract language) is usually preferred to state courts, because arbitral awards are enforceable in the more than 170 states that apply the 1958 New York Convention, while foreign court judgments are often hard to enforce.

Worked example: electrical cables to Nouakchott

An Algerian cable maker sells low-voltage copper cables to a Mauritanian distributor.

Because the letter of credit is independent of this contract, the exporter checks the draft credit against the 'Documents' clause line by line before the buyer applies for it: same documents, same issuers, a latest shipment date that matches lot 3, partial shipments allowed.

How the contract fits with the other documents

The contract is the source; every later document must reflect it. The invoice repeats the description, unit prices, Incoterm and payment terms. The packing list and marks follow the packing clause. Under UCP 600 article 4, a credit is separate from the sale contract: banks will not consider the contract even if the credit refers to it. A letter of credit that contradicts the contract must be amended before shipment, not argued about after. Learn how credits work in letters of credit explained.

Common mistakes

• Signing the buyer's purchase conditions without reading their liability, warranty and penalty terms.
• An Incoterm without a named place, or with an older version not stated.
• No tolerance on quantity, so a 2% shortfall becomes a breach.
• 'Payment by L/C' without saying confirmed, at sight, place of expiry, and by when it must be opened.
• No claims deadline, leaving you exposed for two years under the CISG.
• Choosing your own courts when the buyer has no assets in your country: you win a judgment you cannot enforce.
• Contract in one language, credit and invoices in another, with no clause saying which version prevails.

Putting it into practice

On Incoforms, the sales contract is generated from the shipment's data — parties, goods with HS codes, quantities, prices, Incoterm, ports and payment terms — so it says exactly what the invoice and other documents will later say. You can style it with the document designer, print it bilingually in English and French with the amount in words, add your signature and stamp, and export it as a PDF for signature by the buyer.