[Jimmy-J]

Such websites are being forced to hand over customer account details, including their selling activity, as part of the Revenue’s legal powers that were extended last year.

This type of information gathering has enabled the taxman to target 14,000 individuals it suspects of failing to declare profits on their self-assessment tax returns, the Revenue confirmed.

Using extensive new powers introduced last year, HMRC can download people’s account information and even force sellers to pay tax that is disputed or subject to an inquiry.

http://www.telegraph.co.uk/finance/p...y-taxable.html