Mohammed Suleman Khan was jailed last year after West Midlands Police discovered he had failed to pay around £450,000 in income tax and national insurance in an investigation together with HMRC.

Khan, who lived in a £500,000 gated property and drove a BMW, claimed to run a debt-collecting firm and have an annual income of £40,000, but the investigation found he had funded a luxury life-style by evading tax over a nine-year period.

During that time he spent more than £1m building a mansion in his native Pakistan with its own cinema, library, servants' quarters and guard house for a security team. 

At a trial last April Khan was jailed for four years. Now a judge at Liverpool Crown Court has ordered him to pay £2,209,090 back into the public purse, or have an additional ten years added to his prison sentence.

Detective Inspector Andy Bannister, from West Midlands CID, said: ‘Mohammed Suleman Khan at no point in the investigation co-operated or provided credible evidence of his income.’

Detectives searching Khan’s home found 13 paper wraps used by banks to secure £1,000 bundles − all bearing the same date stamp − but after analysing phone and computer records they found limited information on his financial dealings.

Investigators suspected Khan only used cash in a bid to stay below the taxman’s radar and had few assets.

But working with social policy research charity The Joseph Rowntree Foundation, police established Khan would have needed earnings in excess of £1m to fund his lifestyle over the nine-year period he claimed to be earning £40,000 per annum.