The extra tax raised in cases of serious tax fraud has shot up in the last year to £8.5bn. The so-called “yield” from HMRC’s Civil Investigation of Fraud cases went up 49%, according to a report by the National Audit Office (NAO).
But the NAO wants the taxman to accelerate the pace of investigations. In 2009-2010 the average length of an investigation into suspected Tax Evasion was 25 months, and 15% of cases took more than 3 years. The average yield for each investigation was £329,000.