Originally founded in 1849, Inland Revenue was the department of the government that was responsible for all taxation within the UK – this included VAT, income tax, stamp duty and levies on petrol, among other things.
As part of government efforts to streamline organisations, Inland Revenue was dissolved in 2005 – at which point a merged operation with HM Customs and Excise called HM Revenue and Customs (better known as HMRC) came into force. However, despite these changes being in place for the part of a decade, many people still refer to HMRC as Inland Revenue – a nod to the level of influence the branch had over the UK for over 150 years.
In terms of powers, Inland Revenue had broadly the same range of powers that the taxation arm of HMRC currently does – as well as the collection of taxes, both branches have been responsible for Working Tax Credit, Child Tax Credit and similar schemes. Given that many of the same structures and, indeed, employees are still in place from before the restructure, many would argue that little has changed in the way the public interact with the organisation.
Anyone try to get in contact with Inland Revenue will automatically be redirected through to the relevant branch of HMRC, who will be able to deal with queries in much the same way its predecessor did.