Trade Regulations
Local Trade Regulations vs International Trade Agreements under Turkish Law
December 10, 2025
10 min read
Turkish Trade Lawyers
Introduction
For foreign entities operating in Türkiye, the interplay between domestic administrative
regulations and international trade commitments is a critical area of legal risk. Türkiye
operates under a "monist" legal system where international agreements are incorporated directly
into domestic law upon ratification. However, in practice, businesses often face a complex layer
of secondary legislation—Communiqués, Board Decisions, and Customs Circulars—that may appear to
conflict with the free trade provisions established in the World Trade Organization (WTO)
agreements or Türkiye's bilateral Free Trade Agreements (FTAs).
This article clarifies the legal hierarchy under Turkish law, defining how conflicts between
local trade regulations and international agreements are resolved, and provides actionable
guidance for ensuring compliance while leveraging international treaty protections.
Legal Framework Under Turkish Law
The relationship between international law and domestic law in Türkiye is governed by the
Constitution and primary statutory codes. The hierarchy is rigid, and understanding it is the
first step in dispute resolution.
1. The Constitutional Basis (Supremacy of Treaties)
The cornerstone of this legal analysis is Article 90 of the Constitution of the Republic
of Türkiye.
- Article 90/5 states that international agreements duly put into effect have
the force of law.
- Crucially, it stipulates that no appeal to the Constitutional Court can be made with regard
to these agreements on the grounds that they are unconstitutional.
- The Conflict Rule: In cases of conflict between international agreements
regarding fundamental rights and freedoms and domestic laws, the provisions
of the international agreement prevail. For commercial and trade
agreements, while the text does not explicitly grant "supremacy" over
statutes (laws enacted by Parliament) in the same absolute terms as human rights
treaties, established legal practice and statutory interpretation principles generally
accord them priority over secondary legislation (regulations, communiqués).
2. Customs Law No. 4458
The Customs Law (Law No. 4458) is the primary statute governing cross-border
trade.
- It is largely harmonized with the European Union Customs Code due to the Customs Union
agreement.
- Article 1 of Law No. 4458 explicitly sets the scope of customs obligations,
which must be interpreted in line with Türkiye's international obligations.
3. Turkish Commercial Code (Law No. 6102)
While the TCC governs private commercial relations, Article 1 and subsequent
general principles require merchants to act in accordance with "good faith" and "commercial
honesty," which includes adherence to the regulatory framework derived from international
treaties ratified by Türkiye.
Local Trade Regulations vs International Trade Agreements
The central legal issue arises when a Ministry (e.g., Ministry of Trade) issues a
Communiqué (tebliğ) or Regulation (yönetmelik) that imposes
stricter technical barriers, additional tax burdens, or labeling requirements than those agreed
upon in an FTA or the Customs Union Decision (1/95).
The Hierarchy of Norms (Normlar Hiyerarşisi)
Under Turkish administrative law, the hierarchy is as follows:
- Constitution
- International Agreements (duly ratified) & Codes/Statutes
(Kanun)
- Presidential Decrees (Cumhurbaşkanlığı Kararnamesi)
- Regulations (Yönetmelik)
- Communiqués (Tebliğ) & Circulars (Genelge)
Resolution of Conflict
If a local Communiqué restricts trade in a manner inconsistent with a ratified
International Treaty:
- Legal Supremacy: The International Treaty prevails over the Communiqué. A
lower-level norm (Communiqué) cannot contradict a higher-level norm (Treaty/Law).
- Implementation: In practice, customs officers strictly follow the
electronic customs system (Bilge System) and active Communiqués. They rarely have the
discretion to "disregard" a Communiqué based on a treaty argument at the border.
- Remedy: The remedy lies in administrative litigation (filing a lawsuit for
the annulment of the administrative act) or seeking a correction assessment after payment
under protest (ihtirazi kayıt).
Key Legal Obligations and Risks
Foreign businesses must navigate these specific risks where local practice often diverges from
international treaty text:
- Surveillance Measures (Gözetim Uygulaması): The Ministry of Trade
frequently imposes surveillance on imports based on unit prices (referencing Communiqués
on Surveillance in Imports). While this creates a de facto minimum import
price, which arguably conflicts with WTO Valuation Agreement rules, it is a prevalent local
practice.
- Additional Customs Duties (Ilave Gümrük Vergisi - IGV): Türkiye imposes
additional duties on non-EU/FTA origin goods. Compliance requires precise
Certificates of Origin. A failure to prove preferential origin results in
the application of the full statutory tax rate, regardless of the commercial contract terms.
- Technical Barriers to Trade (TBT): Products must meet Turkish Standards
(TSE) or CE marking requirements. Law No. 7223 on Product Safety and Technical
Regulations places strict liability on importers to ensure products meet these
technical regulations, which are legally treated as equivalent to domestic law.
Relevant Turkish Court Decisions
Disputes regarding the supremacy of international agreements over domestic administrative acts
are adjudicated by the Administrative Courts and the Council of State (Danıştay).
Council of State (Danıştay) Jurisprudence on Hierarchy:
There is established case law of the Council of State confirming that administrative acts (such
as Regulations or Communiqués) cannot introduce restrictions that contravene the clear
provisions of a ratified international agreement. The Council of State consistently applies the
principle that the administration is bound by the hierarchy of norms.
Note: While specific recent E./K. numbers for pending commercial cases are often confidential
or not publicly indexed in real-time, the 10th Chamber of the Council of State has
historically ruled that administrative discretion cannot override specific treaty
obligations.
Court of Cassation (Yargıtay) on Private Commercial Disputes:
In disputes between private parties (e.g., a distributor claiming damages for non-compliance with
local regulations), the Court of Cassation (e.g., 11th Civil Chamber) generally holds that
merchants are expected to know and comply with mandatory domestic provisions (Emredici
Hükümler) of Turkish law, even if an international contract attempts to waive them.
Practitioner's Note: Do not assume a "treaty defense" will
automatically work as a shield in lower courts without expert procedural handling. Turkish
courts require specific pleading of Article 90 and a clear demonstration of the conflict.
Practical Compliance Recommendations
To mitigate risks arising from the conflict between local regulations and international
agreements:
1. Payment Under Protest (İhtirazi Kayıt):
If a customs authority demands duties or imposes penalties based on a secondary regulation you
believe violates an FTA or the Customs Union rules, you should formally declare the goods and
pay the duties "under protest" (ihtirazi kayıtla). This preserves your right to file a
lawsuit in Tax Court within 30 days. Without this reservation, you lose the
right to litigation.
2. Certificate of Origin Management:
Strictly adhere to the specific "Rules of Origin" protocol of the relevant FTA. A generic "Made
in [Country]" statement on an invoice is insufficient for Turkish Customs. You must strictly use
EUR.1, A.TR, or invoice declarations as authorized by the specific treaty.
3. Contractual Allocations of Risk:
In your Distribution or Sale & Purchase Agreements, explicitly allocate the risk of "Changes in
Law" and "Trade Defense Measures" (e.g., anti-dumping duties, safeguard measures). Under the
Turkish Code of Obligations (Law No. 6098), unexpected regulatory changes can
sometimes trigger "hardship" (Art. 138), but well-drafted contracts should preempt this
uncertainty.
4. Monitor "Official Gazette" (Resmi Gazete):
Trade regulations in Türkiye change rapidly. Surveillance communiqués and import bans are
published in the Official Gazette and enter into force immediately or within days. Relying on
annual summaries is insufficient.
Conclusion
While Article 90 of the Turkish Constitution theoretically guarantees the supremacy of
international trade agreements, the operational reality involves a dense web of domestic
regulations that often take precedence at the border. For foreign investors and traders, the key
to success is not merely relying on the "superiority" of international law, but rather ensuring
meticulous compliance with local administrative requirements while preserving legal rights to
challenge discrepancies through the correct procedural channels.
FAQs
1. Does a Free Trade Agreement (FTA) automatically override a Turkish Customs Communiqué?
Legally, yes, under the hierarchy of norms. However, operationally, customs officers apply the
Communiqué active in their system. You may need to pay the disputed amount under protest and
claim a refund through litigation to enforce the FTA.
2. Can I sue the Turkish government if a new regulation blocks my imports contrary to WTO rules?
You can file an annulment action in the Council of State (Danıştay) or a Tax Court case
against the specific transaction. However, direct "damages" for legislative acts are difficult
to claim. The primary remedy is usually the annulment of the administrative act.
3. What is "Payment Under Protest" (İhtirazi Kayıt) in Türkiye?
It is a critical procedural declaration made during the customs declaration phase. It signifies
that you pay the demanded tax/duty to release your goods but reserve the right to challenge its
legality in court. If you fail to make this reservation, the payment is deemed voluntary and
final.
Turkish Law
International Trade
WTO
Customs
Article 90
FTA
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