The idea of ​​creating the Eurasian Economic Union belongs to the First President of the Republic of Kazakhstan - Elbasy Nursultan Nazarbayev, which he voiced on March 29, 1994, giving a lecture at the Moscow State University. M.V. Lomonosov. The initiative of the First President became a reality only 20 years later, and this became a historic event for the post-Soviet republics that entered the economic union. The Treaty on the Eurasian Economic Union was signed on May 29, 2014 in the capital of Kazakhstan. This document laid the foundation for the development of Eurasian integration, which provides long-term stable conditions for the development of the economies of the Union member states, and also created opportunities for the implementation of four freedoms: freedom of movement of goods, capital, services and labor. The agreement marked the transition of the Eurasian economic project to a new, deeper level of integration.

On December 4, 2014, the Armenian parliament ratified the agreement on the country's accession to the EAEU. On December 23, 2014, at a meeting of the Supreme Eurasian Economic Council, an agreement was signed on the accession of Kyrgyzstan to the EAEU. On January 1, 2015, the agreement on the establishment of the Eurasian Economic Union entered into force. On January 2, 2015, Armenia officially joined the EAEU. In August 2015, the procedure for Kyrgyzstan's accession to the Eurasian Economic Union was completed.

On January 1, 2018, the new EAEU Customs Code came into force. This simplified the procedure for moving goods across the customs border of the Union, made it transparent, including through the introduction of an electronic declaration system. All procedures related to the entry of goods into the common EAEU market have been unified. Thanks to the code, the time for the release of goods for free circulation has been reduced six times, and the registration of a customs declaration has been halved.

Today, on the territory of the EAEU, the customs borders between the member states have been removed, the norms of the unified Customs Code are applied, the Unified Customs Tariff, the unified system of foreign trade and customs regulation, and unified technical regulations are in force.