HMRC says the UK is set to miss out on around £600 million in tax revenue each year because of a US exemption under the OECD’s landmark global minimum tax agreement. The figure is reported as part of scrutiny by Parliament’s Public Accounts Committee into how much tax large multinational firms pay. The agreement underpinning the estimate is designed to apply a 15% global minimum tax rate and reduce incentives for companies to shift profits to lower-tax jurisdictions. According to reporting on the deal, nearly 150 countries agree to the framework, but the United States is exempt. HMRC’s confirmation indicates the UK’s expected tax take is reduced compared with what would apply if the exemption did not apply. The issue is presented in the context of parliamentary oversight of corporate tax outcomes and the effectiveness of international tax rules. The sources describe the same core point: HMRC identifies a recurring revenue impact linked to the US exemption and raises it in evidence provided to the Public Accounts Committee.