Quantexa has won a £175 million, 10-year contract from HM Revenue & Customs to modernise the tax authority’s data infrastructure. The award gives the London-founded software company a central role in one of the UK’s larger Artificial Intelligence deployments, as HMRC seeks to bring together fragmented datasets and introduce governed use of Artificial Intelligence across core operations.
HMRC plans to use the programme to create a more unified view of its data to improve operational performance, identify tax at risk and support broader efforts to reduce the tax gap. The work is also intended to strengthen controls and support customer service processes. The contract focuses on HMRC’s core data foundation, an area that has grown in importance for public bodies trying to update ageing systems while maintaining oversight of how data is used and how automated decisions are made.
The project reflects a wider push across government to adopt Artificial Intelligence tools without losing control over sovereignty, auditability and explainability. For tax authorities, data quality and integration have become critical as agencies try to detect fraud, manage compliance and automate routine processes. Ministers presented the HMRC contract as an example of UK-developed Artificial Intelligence and data technology being used in a major public service setting, while also highlighting the growing role of domestic software suppliers in government transformation programmes.
Quantexa was founded in London and has built its business around software that connects and analyses data from multiple sources. The company works with public and private sector organisations on fraud, risk, compliance and data modernisation projects. The HMRC award gives Quantexa a prominent reference project in the domestic market at a time when governments in Europe and elsewhere are weighing how to use Artificial Intelligence in sensitive public functions.
Trade officials also pointed to the international significance of the contract, presenting it as a sign of demand for British data and Artificial Intelligence products in government settings beyond the UK. The deal was framed as evidence that UK-developed technology can support more efficient public services, safeguard revenues and improve the taxpayer experience at national scale.