A crooked tax agent and accountant - who is also an internationally-ranked chess player - has been jailed for 10 years after being found guilty of stealing more than £750,000 in a tax and mortgage fraud.

The total value of tax fraud in the UK has risen 538% to £2.11bn in the last 15 years and is up 6.5% from £1.99bn in 2016, according to new research from accountancy and business advisory firm BDO LLP.