Preferential vs Non-Preferential Origin

The first thing to understand is that "certificate of origin" can mean two very different things, depending on its purpose:

Non-preferential origin simply states where goods were made — for general customs purposes, trade statistics, country-of-origin labelling rules, anti-dumping measures or because the buyer requires it. It does not reduce import duties at the destination. This is the conventional certificate issued by the Cámara de Comercio.

Preferential origin goes further: it demonstrates that goods meet the specific rules of origin defined in a trade agreement between the EU and the destination country, and therefore qualify for reduced or zero import duties. This is established by an EUR.1 movement certificate or an invoice declaration — not by a Chamber of Commerce certificate.

A Chamber of Commerce certificate does not grant preferential duties. If your buyer needs to claim a reduced tariff rate under an EU trade agreement, they need an EUR.1 or an invoice declaration — not a conventional certificate. Mixing these up is one of the most common and costly mistakes in Spanish export documentation.

The Conventional Certificate of Origin (Cámara de Comercio)

The conventional certificate of origin is a general-purpose document issued by the Cámara de Comercio (Chamber of Commerce). It certifies the country of origin of the goods for non-preferential purposes — required by some importing countries for customs clearance or import licensing, or requested by buyers as part of the commercial documentation.

Common situations where it is needed include exports to countries with no EU trade agreement (where the buyer's customs authority requires it for administrative purposes), and exports requiring legalisation or an apostille — for example, some Middle Eastern or Latin American buyers request a legalised certificate of origin alongside the commercial invoice.

The Spanish Chamber of Commerce issues certificates quickly — many chambers offer online applications with same-day or next-day processing.

The EUR.1 Movement Certificate

The EUR.1 is the preferential origin document used under most EU bilateral trade agreements. It is issued by AEAT (Spanish customs) and certifies that the goods meet the rules of origin of the applicable EU agreement — entitling the buyer to claim reduced or zero import duties at the destination.

EU agreements that use the EUR.1 include those with Turkey (A.TR for industrial goods, EUR.1 for agricultural products), Morocco, Tunisia and other Euro-Mediterranean countries, as well as several other bilateral agreements. Notably, some EU agreements do not use EUR.1 — the EU-Korea FTA and the EU-Japan EPA use only invoice declarations, for example.

To obtain an EUR.1, the exporter fills in the certificate form and presents it to their local AEAT customs office together with the export declaration and documentation supporting the EU origin of the goods — manufacturing records, supplier declarations, bills of materials. AEAT reviews and stamps the certificate. Allow at least a few working days.

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The Invoice Declaration

Under most EU trade agreements, an approved exporter can replace the EUR.1 with a simple origin declaration on the commercial invoice. This is a standardised text statement — defined in the relevant agreement — that the exporter adds to their invoice. It declares that the goods originate in the EU and meet the applicable rules of origin.

Two conditions apply:

The invoice declaration is the most practical option for frequent exporters. Obtaining approved exporter status from AEAT is worth the administrative effort for any company exporting regularly to countries covered by EU agreements.

Which Document for Which Destination?

A quick guide by trade situation:

Frequently asked questions

A certificate of origin certifies the country where goods were produced or substantially transformed. It matters because customs authorities at the destination use it to determine applicable duty rates, apply anti-dumping measures, or comply with import licensing rules. For goods covered by a trade agreement, presenting the correct origin document is what unlocks preferential (lower) import duties for your buyer.
An EUR.1 is a preferential origin document issued by AEAT (Spanish customs) that allows the buyer to claim reduced duties under an EU trade agreement. A conventional certificate of origin is a non-preferential document issued by the Chamber of Commerce — it proves where the goods were made but does not grant any tariff reduction. Using a Chamber certificate when an EUR.1 is needed means your buyer will pay full duties.
AEAT (Agencia Estatal de Administración Tributaria — Spanish customs). The exporter fills in the form and presents it to their local customs office with the export declaration and origin evidence. AEAT reviews the documents and stamps the certificate. Allow a few working days for the process.
Under most EU agreements, yes. An approved exporter (exportador autorizado, with an AEAT authorisation number) can make an invoice declaration for any value. Without approved status, the invoice declaration is only valid below the agreement's value threshold — typically €6,000. Above that, an EUR.1 is required. Getting approved exporter status from AEAT is recommended for any company exporting regularly.
Turkey is a special case. For industrial goods, the relevant document is an A.TR movement certificate — not an EUR.1. The A.TR certifies that goods are in free circulation in the EU (or Turkey) and benefit from the EU-Turkey Customs Union. EUR.1 is used for agricultural and processed agricultural products in the context of the EU-Turkey preferential arrangement.
Rules of origin are the criteria that determine whether a product qualifies as originating in a particular country for trade agreement purposes. They typically require that goods were wholly produced in the EU, or that non-EU materials underwent sufficient processing or transformation — often defined by a change in tariff heading or a minimum value-added threshold. Each trade agreement has its own rules of origin, set out in the agreement's annexes.