DAVID CAMERON’S dad was named yesterday as one of hundreds of wealthy tax avoiders in a massive document leak from an offshore tax haven law firm.

Millions of papers from secretive Panama-based company Mossack Fonseca were sent out to journalists, exposing what shadow chancellor John McDonnell called a “repulsive” global culture of tax dodging by the rich and powerful.

And Ian Cameron, who died in 2010, was revealed to have used the firm to hide profits from HM Revenue and Customs (HMRC) — to which the business has not paid a penny in British tax for 30 years.