Multilateral institutions

International Development Association

Contributing memberInternational · Low-income and vulnerable countries

The World Bank's concessional financing arm. UK participation is best understood through replenishment commitments, payments and voting rights.

UK ownership or participation: Contributing membership; no comparable ordinary equity percentage
Lead department or body: Foreign, Commonwealth & Development Office
UK voting rights: 6.92% · 30 Jun 2026
Mandate: Grants and concessional finance for the poorest countries.

UK financial position

UK IDA21 pledge£1.98bn2025–2028 replenishment

Commitment for this replenishment, not all-time contributions or equity value.

UK promissory notes outstanding£1.809bn31 Mar 2026

FCDO liability awaiting encashment; do not add to the pledge.

Accounting values, paid-in capital and funding commitments have different meanings and reporting dates. These figures are not added together.

FCDO leads UK replenishment policy and contributions. UK representation is through the World Bank Group boards; votes follow replenishment rules.

Parent / group: World Bank Group; each entity has a separate UK financial relationship

5 publications relevant to IDA · Institution-specific research shown first

Independent scrutiny31 May 2022

Independent Commission for Aid Impact (ICAI)

Policy analysis11 Apr 2024

Center for Global Development

Institutional evaluation9 Jan 2024

World Bank Group — Independent Evaluation Group (IEG)

IDA8 Dec 2025Parliament
Minister reconfirms £1.98bn IDA21 commitment ↗
A parliamentary committee considered the replenishment order; the minister set out a 40% increase over IDA20.
IDA29 Nov 2024Capital and funding
World Bank welcomes increased UK IDA pledge ↗
The World Bank reported the UK's early £1.98bn pledge to the 21st replenishment.