Official Development Aid refers to the flows of official financing given with the objective to promote economic development and welfare in developing countries and are concessional in character with a grant element of at least 25% (using a fixed 10% rate of discount). By convention, ODA flows comprise contributions by donor government agencies at all levels to developing countries (“bilateral ODA”) and to multilateral institutions. ODA receipts comprise disbursements by bilateral donors and multilateral institutions. Lending by export credit agencies with the pure purpose of export promotion is excluded.
OECD, What is Official Development Aid?, April 2019