Representation of the People Act 1983

1(1)Any claim against any person in respect of any election expenses incurred by or on behalf of a candidate which is not sent in within 14 days after the day of election shall be barred and not paid, and all election expenses incurred as mentioned above shall be paid within 21 days after the day of election and not otherwise.

(2)If any person makes a payment in contravention of this paragraph he shall be guilty of an illegal practice, but a candidate shall not be liable, nor shall his election be avoided, for any illegal practice committed under this sub-paragraph without his consent or connivance.