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Introduction
Turkey has long been a key player in international investment, leveraging its network of Bilateral Investment Treaties (BITs) to attract foreign capital. As of 2026, the landscape of Turkey’s BITs is undergoing significant changes, driven by policy shifts, economic priorities, and international legal developments. This article provides a comprehensive overview of the latest updates on Turkey’s bilateral investment treaties in 2026, including new signings, terminations, renegotiations, and their implications for investors.
Overview of Turkey’s BIT Network in 2026
Turkey currently has over 80 BITs in force, with many more signed but not yet ratified. In 2026, the focus has been on modernizing existing treaties to align with contemporary standards of investment protection and sustainable development. The Turkish government is also actively negotiating new BITs with emerging economies in Africa, Asia, and Latin America.
Key Statistics
- Total BITs in force: 84
- BITs signed but not in force: 12
- BITs terminated or replaced in 2025-2026: 5
- New BITs signed in 2026: 3
Recent Terminations and Renegotiations
In 2026, Turkey has terminated several older BITs that no longer serve its economic interests or that have been superseded by EU agreements. Notably, the BIT with the Netherlands was terminated in early 2026, following the Netherlands’ withdrawal from the Energy Charter Treaty and a broader EU trend away from investor-state dispute settlement (ISDS).
Terminated Treaties
- Turkey-Netherlands BIT (terminated January 2026)
- Turkey-Austria BIT (terminated March 2026)
- Turkey-United Kingdom BIT (renegotiated, new text pending ratification)
Renegotiations have focused on limiting ISDS, adding provisions for environmental and labor standards, and ensuring transparency. The new Turkey-UK BIT, for example, includes a clause requiring investors to exhaust local remedies before initiating international arbitration.
New Bilateral Investment Treaties in 2026
Turkey has signed three new BITs in 2026, reflecting its strategic pivot toward new markets.
1. Turkey-Senegal BIT
Signed in February 2026, this treaty aims to boost Turkish investments in West Africa, particularly in infrastructure and energy. It includes standard protections like fair and equitable treatment, but also incorporates a sustainable development clause.
2. Turkey-Vietnam BIT
Signed in April 2026, this BIT is part of Turkey’s broader Asia Anew initiative. It provides for investor-state arbitration under ICSID and UNCITRAL rules, with a cooling-off period of six months.
3. Turkey-Colombia BIT
Signed in June 2026, this treaty replaces an older agreement and modernizes protections, including explicit references to corporate social responsibility.
Impact of EU and International Developments
As a candidate for EU accession, Turkey’s BIT policy is influenced by EU law. The European Commission has urged Turkey to terminate intra-EU BITs, and Turkey has complied by ending agreements with several EU member states. However, Turkey maintains BITs with non-EU countries like the US, Japan, and China.
Intra-EU BITs
By 2026, Turkey has terminated all but one of its intra-EU BITs, with the remaining treaty (with Romania) expected to be terminated by year-end. This aligns with the European Court of Justice’s Achmea ruling, which found intra-EU BITs incompatible with EU law.
Implications for Foreign Investors
The changes to Turkey’s BIT network in 2026 have several implications for foreign investors:
- Reduced Protection for EU Investors: With the termination of many intra-EU BITs, investors from EU countries may no longer have access to ISDS against Turkey. They must rely on domestic courts or other investment protection mechanisms.
- New Opportunities in Emerging Markets: The new BITs with Senegal, Vietnam, and Colombia open doors for Turkish investors in these regions, providing legal certainty and dispute resolution mechanisms.
- Modernized Standards: Renegotiated and new BITs include provisions on sustainable development, transparency, and corporate responsibility, which can benefit investors by fostering a stable and predictable investment climate.
- Increased Scrutiny: Turkey’s BITs now often require investors to exhaust local remedies or engage in mediation before arbitration, potentially lengthening dispute resolution but also encouraging amicable settlements.
How to Stay Updated
Investors should monitor official sources such as the Turkish Ministry of Trade and the Investment Office of the Presidency of Turkey. Additionally, subscribing to international investment law newsletters and consulting with legal experts specializing in Turkish investment law is advisable.
Conclusion
In 2026, Turkey’s bilateral investment treaties are in a state of flux, with terminations, renegotiations, and new agreements reshaping the investment landscape. The latest updates on Turkey’s bilateral investment treaties in 2026 show a clear trend toward modernization, alignment with EU norms, and expansion into new markets. For investors, understanding these changes is crucial for risk assessment and strategic planning. By staying informed and seeking expert advice, investors can navigate this evolving environment and capitalize on opportunities in Turkey and its partner countries.