The Western Balkans Investment Framework (WBIF) supports socio-economic development and EU accession across the Western Balkans through the provision of finance and technical assistance for strategic investments. It is a joint initiative of the EU, financial institutions, bilateral donors and the governments of the Western Balkans.

The WBIF provides financing and technical assistance to strategic investments in the energy , environment, social, transport, and digital infrastructure sectors. It also supports private sector development initiatives. 

The Framework awards, based on competitive procedures, grants for infrastructure project preparation activities as well as for investments. Calls for proposals are launched by the WBIF Steering Committee. Generally, there are two calls for technical assistance and only one call for investment grants per year. Guidelines are published for each call for proposals setting out eligibility criteria,  including any specific requirements, as well as the pre-notification and submission deadlines.

Applications are assessed by the WBIF's Project Financiers’ Group, which recommends selected applications for approval to the Steering Committee. Approved grants are then implemented by the Infrastructure Project Facility teams and/or the IFIs themselves.