This document provides an update on the extent to which the UNFCCC core budget and budgets in the UNFCCC trust fund for supplementary activities were funded as at 31 March 2025. Funding for the UNFCCC core budget for the 2024–2025 biennium, totalling EUR 74.1 million, is largely on track. The 2024 portion was fully funded, and the 2025 portion had received EUR 30.2 million, representing 81.5 per cent of its allocation. In contrast, the UNFCCC trust fund for supplementary activities, which has a biennial budget of EUR 211.0 million, had only received EUR 100.9 million, or 48 per cent of its total. The distribution of this funding has been inconsistent, with some projects receiving their full allocation from voluntary contributions and others receiving none of their allocation. Overall, while funding the core budget is progressing well, the supplementary fund remains significantly underfunded, limiting support for many important initiatives.