Customs & International Trade Law in Türkiye

Who this service is for

This page is for foreign businesses whose money moves through Turkish customs. You may be:

• An importer bringing goods into Türkiye and worried about the duty, VAT and special consumption tax you are being charged.
• An exporter or foreign manufacturer selling into the Turkish market and needing the right certificates of origin and movement documents.
• A distributor or trading company that has received a customs assessment, a penalty notice, or a request to recalculate value or classification.
• A company planning to trade through a Turkish free zone or set up a regional supply hub.
• A foreign exporter caught by an anti-dumping or safeguard investigation in Türkiye.

You do not need a Turkish entity to instruct us, though many clients do trade through a local company or branch — see forming a Turkish company or branch to import and export. What you need is clear advice on where your exposure sits and a plan to fix it before deadlines pass.

The Turkish customs and trade legal framework

Turkish customs law is codified and detailed. The backbone is one statute, supported by free-zone legislation, the import and export regimes, and Türkiye's trade-remedy rules. Over all of it sits the EU–Türkiye Customs Union for industrial goods.

In practice, four questions decide what you pay and whether you have a problem: what the goods are (classification), what they are worth (valuation), where they come from (origin), and which regime applies (import, export, transit, inward processing, free zone). Get any of these wrong and the customs administration can re-open the file, re-assess duty and add a penalty. The sections below take each in turn.

Customs valuation — how value is set and where disputes arise

Most serious customs disputes in Türkiye are about value. Duty, VAT and special consumption tax are usually calculated as a percentage of the customs value of the goods, so the value the administration accepts directly drives the tax bill.

The primary method under the Customs Law No. 4458 is the transaction value — the price actually paid or payable for the goods, adjusted for items such as freight, insurance, royalties, licence fees and certain commissions. Where customs does not accept the declared price, it moves down a hierarchy of secondary methods (identical goods, similar goods, deductive and computed value).

Disputes typically start when customs believes your declared value is too low and issues a supplementary assessment (ek tahakkuk), often with a penalty. Common triggers include related-party pricing, royalties not added to the value, and reference-price databases that flag your declaration as below the expected range.

How you contract internationally feeds straight into your customs value. We align the two so your declared value is defensible — see international sale and supply contracts (Incoterms and delivery terms).

Tariff classification, origin and movement certificates

Every product is declared under a tariff code (in Türkiye, the GTİP code, built on the international Harmonised System). The code sets the duty rate and decides whether trade measures, quotas or licences apply. A single wrong digit can change the rate — or pull your goods into an anti-dumping measure.

Origin is the second half of the puzzle. It determines whether preferential rates apply and which certificate you need:

Import and export procedures and authorised-operator status

Clearance runs on the customs declaration lodged under the Customs Law No. 4458 and the applicable import or export regime. Beyond the standard procedure, several regimes can cut cost and time if you qualify:

• Inward processing — import raw materials with duty relief, process them in Türkiye and re-export the finished goods.
• Outward processing — send goods abroad for processing and bring them back with relief on the value already in Türkiye.
• Transit and bonded warehousing — move or store goods without immediately triggering the customs debt.
• Authorised Economic Operator (AEO / Yetkilendirilmiş Yükümlü) status — a trusted-trader authorisation giving simplified procedures and fewer physical checks to compliant companies.

We assess which regime fits your supply chain, prepare the application file and keep your authorisations in good standing. For the duty, VAT and special consumption tax that attach on import, see our guide to customs duty, VAT and special consumption tax rates and exemptions.

Customs penalties, assessments and how to challenge them

When customs finds an error, it does two things: it re-assesses the duty (ek tahakkuk) and it imposes a penalty under the Customs Law No. 4458. The penalty regime is article-specific.

You are not without options. The standard sequence is:

• Administrative objection (itiraz) to the customs authority under Article 242, before going to court.
• Reconciliation (uzlaşma) — a settlement mechanism that can reduce the duty and penalty before litigation, under the Customs Law No. 4458 and the Customs Reconciliation Regulation.
• Annulment action before the competent tax or administrative court if the objection fails — ultimately reaching the Council of State (Danıştay), whose tax and administrative chambers decide these disputes.

Where a dispute is better resolved by agreement or before a tribunal, we draw on our cross-border trade dispute resolution practice.

Free zones — setting up and trading through Turkish serbest bölgeler

Türkiye's free zones (serbest bölgeler) sit under the Free Zones Law No. 3218. Goods inside a free zone are treated as outside the Turkish customs territory for many purposes, which can defer or remove customs duty and offer operational and, in defined cases, tax advantages for manufacturing, storage and re-export operations.

Free zones suit foreign businesses that import components, add value and re-export, or that want a Turkish logistics base without immediately bringing goods into free circulation. The key decisions are which zone, what operating licence you need, and how goods will move in and out without losing relief.

We handle the structure end to end — see our guide to setting up a company in a Turkish free zone. For technology and R&D operations, a different incentive regime may fit better; compare with technology development and special economic zones.

Trade remedies — anti-dumping, countervailing and safeguards

Türkiye actively applies trade-remedy measures, and foreign exporters are usually the ones in the firing line. Three tools exist:

• Anti-dumping duties — extra duties on goods sold into Türkiye below their normal value.
• Countervailing (subsidy) duties — duties offsetting subsidies granted to foreign producers.
• Safeguard measures — temporary measures protecting Turkish industry from a surge in imports.

If your product is named in an investigation, you can respond to questionnaires, request a review, and challenge measures applied to your goods. The cost of staying silent is a duty that can price you out of the market. Where a measure also raises competition or regulatory questions, we coordinate with our competition and regulatory clearance for cross-border trade team.

The EU–Türkiye Customs Union and free circulation

Türkiye and the European Union have operated a Customs Union for industrial goods since 1995. Within its scope, industrial products in free circulation move between Türkiye and the EU without customs duty, supported by the A.TR movement certificate. This is the single most important framework for businesses trading goods between Türkiye and Europe.

The certificate proves free-circulation status, not preferential origin — a distinction that trips up many traders. We confirm whether your goods qualify, which certificate applies, and how to document free circulation so an A.TR claim survives a customs check on either side of the border.

Cross-border mechanics for foreigners — power of attorney, apostille and remote handling

You can run almost all of this from abroad. Turkish customs and court procedures accept representation by a Turkish lawyer acting under a power of attorney (vekâletname), which means you rarely need to be physically present.

The practical steps are straightforward:

• You sign a power of attorney before a notary in your own country (or at a Turkish consulate).
• If signed abroad, it is apostilled under the Hague Apostille Convention, then translated and notarised for use in Türkiye.
• We then act on your behalf before the customs administration and, if needed, the courts.

For the mechanics, see our guides on granting a power of attorney to handle customs matters remotely and the documentation behind each shipment in transport and shipping documents in international trade.

Common and costly mistakes at Turkish customs

Most customs problems we are asked to fix were avoidable. The recurring ones:

• Under-declaring value — leaving royalties, licence fees or freight out of the customs value, then facing a supplementary assessment plus a multiple-of-duty penalty.
• Wrong GTİP classification — copying a code from an old declaration or a supplier, and repeating the error across dozens of entries.
• Wrong certificate — using an A.TR where the goods are outside the industrial Customs Union, or an EUR.1 where free-trade-agreement origin rules are not actually met.
• Missing the objection window — treating a customs notice as a bill to negotiate later, when a short statutory deadline is already running.
• No paper trail — being unable to evidence the declared price when customs asks, because the contract, invoice and payment records do not line up.

Where a trade counterparty leaves you out of pocket after one of these problems, recovery is its own workstream — see recovering unpaid amounts from trade counterparties.

Why instruct a Turkish customs lawyer

Customs is administrative law with money attached, run on short deadlines and detailed evidence. A customs broker can clear goods; a lawyer protects your position when value, classification, origin or a penalty is contested — because objections, reconciliation and court actions are legal proceedings with statutory time limits.

Lexin works in English, acts under a power of attorney so you do not need to travel, and joins your customs strategy to the rest of your Turkish footprint — your company structure, your contracts, your dispute resolution and your recovery options. You get one team that sees the whole chain, not a clearance line that stops at the border.

If you have just received a Turkish customs assessment or penalty, the clock is already running. The fastest way to protect your position is to send us the decision and the underlying declarations so we can map the deadlines today.

How we work with you

Customs and international trade in Türkiye — FAQs