The total cash collected from HMRC tax investigations rose by 27 percent in 2018/19 to £13 billion.

In 2017/18 the figure stood at £10.3 billion, according to research from 2019 eprivateclient Top Accountancy Firm UHY Hacker Young.

This increase has been partly driven by payments HMRC has received ahead of the “controversial” Loan Charge being introduced in April 2019, which meant any individual who had used avoidance schemes to reduce their income tax bills had to pay any outstanding tax by the April deadline or face extra charges.

It is estimated that 50,000 people who used these loan-bas...