Türkiye is a founding member of the Organisation for Economic Co-operation and Development (OECD), which was established on 30 September 1961. Today, the OECD has 38 members. The accession processes of Argentina, Brazil, Bulgaria, Croatia, Indonesia, Peru, Romania and Thailand are ongoing.

Since its establishment, the OECD's mandate has been to deliver greater well-being worldwide by advising governments on policies that support resilient, inclusive and sustainable growth. Through evidence-based policy analysis and recommendations, standards and global policy networks, the OECD has helped advance reforms and multilateral solutions to global challenges.

Relevant institutions from Türkiye participate in over 300 committees or sub-committees of the OECD in the fields of economy, trade, investment, taxation, fiscal policy, competition, employment, agriculture, statistics, environment, public and business governance, tourism, regional development, development aid, small and medium sized enterprise (SMEs), health, digital policies, consumer protection, education, science and technology.

The OECD’s principle decision-making body is its Council. Regular meetings of the Council are held at the Organisation’s headquarters in Paris and they are attended by member states’ Permanent Representatives. Once a year, the Council convenes at ministerial level. Ministerial Council Meetings (MCMs) are chaired each year by a member State. Türkiye chaired the OECD’s MCM held in Paris in May 2012.

The OECD aims to deepen cooperation also with non-member countries by providing the necessary guidance and technical support for them to build more inclusive, sustainable and prosperous societies. In this context, the OECD establishes Global Relations and Cooperation (GRC) offices in member and non-member countries, among them being the OECD Istanbul Center.

The OECD Istanbul Center was opened in January 2021 with the voluntary financial contribution of Türkiye to serve as an important hub for the implementation of the OECD’s regional programmes in Eurasia, the Middle East, North Africa, Southeastern Europe and Southeast Asia. Its official opening was held in March 2023.

In addition, the OECD Ankara Multilateral Tax Center, established in 1993 for the sharing of knowledge and experience in the field of tax matters, continues its activities.

Türkiye is represented at the OECD with its Permanent Representation based in Paris.