Where an enforcement authority orders a person to pay an amount under section 10, the authority may include provision in the order for interest to be payable on that amount in accordance with this section.

Where the amount ordered to be paid relates to a single payment of a prohibited rent, interest is payable on the amount from the day on which the payment was made until the day on which the amount is paid.

Where the amount ordered to be paid relates to more than one payment of a prohibited rent, interest is payable on so much of the amount as relates to a particular payment from the day on which that particular payment was made until that part of the amount is paid.

The rate of interest is the rate for the time being specified in section 17 of the Judgments Act 1838.

The total amount of interest payable under provision made under this section must not exceed the amount ordered to be paid under section 10.