Question to the HM Treasury:

To ask the Chancellor of the Exchequer, for what reason the Manx pound has not been approved for use as legal currency in the UK.

The Isle of Man is not part of the UK, but is a self-governing dependency of the Crown, and issues its own currency that is governed under Manx law.

It is also not the case that payment between contracting parties in the UK must necessarily be made using a specified method of payment. It is a matter for the prospective parties to a contract to stipulate whatever form of payment they wish.