
In a rare letter addressed to all 193 member states, Guterres urged governments to honour their mandatory payments or consider overhauling the UN’s financial rules to avoid further disruption.
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Despite more than 150 member states having paid their dues for 2025, total arrears have climbed to US$1.56 billion – double the amount recorded in 2024.
UN officials said the US – the organisation’s largest contributor – owed about US$2.19 billion to the regular budget and had not paid an additional US$2.4 billion in peacekeeping contributions.
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Washington, which accounts for 22 per cent of the UN’s core budget, has also withdrawn from several UN agencies, describing them as a waste of taxpayer money.