UK–Turkey customs explained: ATR, EUR1 and post-Brexit declarations.

2. EUR1 and preferential origin

A EUR1 is a different animal. It's a movement certificate based on the origin of the goods, used to claim preferential duty under the rules of origin in a free trade agreement. Where an ATR is about customs status, a EUR1 is about proving where something was actually made.

Which certificate your shipment needs depends on the goods and how they qualify. Getting this wrong is one of the most common, and most expensive, mistakes, because it can mean paying full duty that you didn't need to. We confirm which applies before you ship.

3. Post-Brexit UK export and Turkish import declarations

Since the UK left the EU, every shipment to Turkey needs a formal UK export declaration on the way out and a Turkish import declaration on the way in. These sit alongside the movement certificate, the commercial invoice and the packing list.

None of this is difficult once it's set up properly, the problem is when it's left until the cargo is already at the port. Prepared in advance, it's routine.

4. Commodity codes and getting valuation right

Every product has a commodity code (sometimes called an HS or tariff code) that determines the duty rate and what controls apply. The right code, paired with an accurate, consistent value on the commercial invoice, is what customs checks against.

Vague descriptions, the wrong code, or a value that doesn't add up are red flags that get a shipment pulled for inspection. Spending a little time on this up front saves days later.

5. The common reasons cargo gets held, and how to avoid them

• A missing or incorrect ATR/EUR1 certificate.
• The wrong commodity code, or a description that's too vague.
• An undervalued or inconsistent commercial invoice.
• Paperwork prepared at the port instead of before the cargo sailed.

Every one of these is avoidable. The single biggest thing you can do is get the customs structured before the shipment moves, which is exactly how we work.