Assessed contributions

Assessed contributions

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Assessed contributions (AC) are the amounts each of the 196 Members and Associate Members must pay to WHO on an annual basis. The assessment scale is calculated by the United Nations based mainly on the country’s GDP and is adjusted for WHO’s membership. It is approved every two years by the World Health Assembly (refer to the latest approved assessment scale resolution attached here).

Assessed contributions are a key source of financing for the Organization, providing predictable financing, helping to minimize the dependence on a narrow donor base, and allowing resources to be aligned to the Programme Budget. Assessed contributions have declined as an overall percentage of the Programme Budget and have, for several years, accounted for less than 20% of the Organization’s financing. The balance is mobilized through voluntary contributions.

How WHO is funded

Flexible funding

Our contributors

Publications

Seventy-sixth World Health Assembly: Geneva, 21-30 May 2023: resolutions and decisions, annexes

Other documents

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14 October 2025

Assessed contributions payable summary 2026-2027

Scale of assessments for 2026/2027

Assessed contributions overview for all Member States as at 31 December 2024

Scale of assessments for 2024/2025 (EB152.R3)

Assessed contributions payable summary 2024-2025

Notice of Assessments and Statements of Account

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Click the All button to search for the latest Notice of Assessment and Individual Statements of Account by Member State and by year. Notice of assessments are available for each biennium, please select 2020 as dropdown filter.

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