As of 30 July 2026, Japan is officially associated to Horizon Europe. Home to 123 million people, Japan is the most populous country associated to the programme, adding one of the world's most advanced research and innovation ecosystems to Europe's network of scientific cooperation.
The agreement allows Japanese researchers and organisations to take part in Horizon Europe on equal terms with those from EU Member States and other associated countries. They will be able to join and lead international research consortia, receive EU funding, and work alongside top research institutions to help address global challenges.

Research and Innovation cooperation with Japan
Negotiations on Japan's accession were successfully concluded by the European Commission and the Government of Japan in December 2025. Since January 2026, transitional arrangements have already enabled Japanese entities to apply to Horizon Europe Pillar II calls and to be evaluated as prospective beneficiaries.
Japan's association marks an important step in the EU-Japan Strategic Partnership and underlines a shared commitment to scientific excellence, innovation, open and rules-based international research cooperation.

The EU and Japan will now further expand cooperation to address shared global challenges, notably in the digital transition, health, and technologies that support climate neutrality.
Japan's association covers Horizon Europe Pillar II, which has a budget of €52.4 billion. This pillar funds multinational research and innovation projects addressing major societal challenges related to climate, energy, health and the digital economy. Japan will also contribute financially to the programme's budget covering for the participation of Japanese entities.
In addition, Japanese participants will continue to have access to other parts of Horizon Europe that are open to third countries, including the Excellent Science pillar, the Innovative Europe pillar and the Marie Skłodowska-Curie Actions, which support doctoral education, postdoctoral training and international research collaboration.
Source: European Commission
https://ec.europa.eu/commission/presscorner/detail/en/ip_26_1705