At the Budget, the Chancellor said HMRC would receive additional funding for several areas of its IT systems, including investment in the app, debt management systems and self assessment.

This includes modernising the voluntary self assessment pre-payment system through the HMRC app, digitalising inheritance tax (IHT), updating debt management systems, integrating a system to work with credit reference agency data, creating software to handle the pre-population of self assessment tax returns to link with child benefit records, and the digitalisation of ISAs for providers.