Certificate of origin: what it is and when you need it

A certificate of origin states the country in which goods were produced. It sounds simple, yet it is one of the documents most often rejected by customs, usually because the wrong type was issued or the details do not match the other paperwork.

This guide explains the types of certificate, how origin is decided and when you need one. It is general information, not customs advice. Requirements depend on the product, the countries involved and any trade agreement between them, so confirm your case with your customs broker.

What a certificate of origin does

A certificate of origin (often shortened to CO or COO) is a document, usually completed by the exporter and certified by an authorised body, declaring where the goods originate. Customs authorities and buyers use it to:

• decide whether the goods qualify for a reduced or zero duty rate under a trade agreement,
• apply measures that depend on origin, such as anti-dumping duties, quotas or import restrictions,
• meet the requirements of a letter of credit or the buyer's contract,
• compile trade statistics.

Origin is not the same as the country of shipment

Origin means the country where the goods were grown, extracted or manufactured under the applicable rules. It is not the country they were shipped from, and not the country where the seller is based. Goods made in one country and exported by a trading company in another keep their original origin unless they are processed enough to change it.

The two main types

A common mistake is to assume that any certificate of origin gives a lower duty. Only a valid preferential proof of origin, in the form the agreement requires, can do that.

How origin is determined

Rules of origin differ between agreements and countries, but they use the same basic ideas.

Wholly obtained goods

Products that are entirely grown, harvested, mined or born and raised in one country originate there. Many unprocessed agricultural products fall into this group.

Goods made with imported materials

When materials from more than one country are involved, the goods must be sufficiently processed in the country claiming origin. The common tests are:

• Change in tariff classification. The finished product falls under a different HS code from the imported materials used to make it.
• Value added. A minimum share of the product's value must be created in the country, or imported materials must not exceed a set share.
• Specific processes. A named manufacturing or processing operation must take place in the country.

Simple operations such as repacking, labelling, sorting or simple mixing are generally not enough to give origin.

Because preferential rules are written product by product, the HS code decides which rule applies. See our guide to how HS codes work.

Who issues the certificate

• Non-preferential certificates are usually issued by a chamber of commerce or another body authorised by the exporting country's government. The exporter applies with supporting evidence, such as the commercial invoice and proof of where the goods were produced.
• Preferential certificates are issued by the authority named in the agreement, often customs or a trade ministry. Some agreements instead allow the exporter, or an approved exporter, to make an origin declaration on the invoice or another commercial document.

Many issuing bodies now offer electronic certificates. Check that the customs authority at destination accepts the electronic form before relying on it.

When you need one

You are likely to need a certificate of origin when:

• the importing country requires it for the product or for all imports from certain countries,
• you want to claim a preferential duty rate,
• the product is subject to origin-based measures,
• your letter of credit lists it among the required documents,
• your own customer or a regulator asks for proof of origin.

You may not need one when the importing country does not require it for your product and no preference is being claimed. Do not guess. Ask your customs broker before the order is placed, because the answer affects both your landed cost and what the supplier must prepare.

Common problems and how to avoid them

• Wrong type. A general certificate was issued when a preferential form was needed. Tell the supplier exactly which form you need and under which agreement.
• Inconsistent details. Descriptions, quantities and names differ from the invoice, packing list or bill of lading. Review a draft before the original is issued.
• Origin confused with place of shipment. The certificate must name where the goods were produced.
• Late application. Some forms should be issued at or near the time of export. Retrospective issue may be possible but is not guaranteed.
• Missing legalisation. Some importing countries require the certificate to be legalised or attested by their embassy or consulate, which adds time and cost.
• Transhipment. Some agreements require direct transport, or evidence that goods were not altered in transit through a third country.

Fitting it into your order

Agree the documents in the contract, not after shipment. State the type of certificate, the issuing body, whether legalisation is needed and how many originals you require. Our export documents checklist shows how the certificate fits with the rest of the paperwork.

Sila Trade X is a trading company that supports buyers with sourcing and trade documentation. If you are planning a shipment and want to discuss the documents involved, request a quote and tell us the product, origin and destination.