This section applies where one person makes a leviable bet with another person using facilities provided in the course of a business by a third person (“the betting exchange provider”).

Any amount that any party to the bet is charged, whether by deduction from winnings or otherwise, for using those facilities is commission on the bet for the purposes of section 27(1B)(b).

If the amount is charged by a person other than the betting exchange provider, it is to be treated for those purposes as charged by the betting exchange provider.