IDA lends money on concessional terms. This means that IDA credits have a zero or very low interest charge and repayments are stretched over 25 to 40 years, including a 5- to 10-year grace period. IDA also provides grants to countries at risk of debt distress.
While the World Bank's original lending arm, the International Bank for Reconstruction and Development (IBRD), raises most of its funds on the world’s financial markets, IDA is funded largely by contributions from the governments of its member countries. Donors meet every three years to replenish IDA resources and review its policy framework.
The most recent replenishment of IDA’s resources— the 17th replenishment (IDA17)— was finalized in December 2013, resulting in a record replenishment of $52.1 billion to finance projects over the three-year period ending June 30, 2017. The $52.1 billion includes $4.5 billion for the Multilateral Debt Relief Initiative, and more than $4 billion in concessional partner loans, a critical innovation developed in the course of the replenishment discussions.
For more information, please visit IDA's website at http://ida.worldbank.org/