By February 2026, the government had paid around £3.5 billion in total across the seven schemes examined by the NAO, with up to another £11.4 billion potentially yet to be paid. The Infected Blood Compensation Scheme alone is estimated to pay out £12.8 billion. Schemes differ in fundamental ways that affect their complexity and progress to date, including expected cohort size. Some Horizon schemes expect to receive hundreds of claims, for example, while the Infected Blood Compensation Scheme anticipates potentially tens of thousands.4