43(1)Regulations may make provision in relation to any case where—
(a)a person is under a duty to pay to the Commissioners at any time an amount or amounts in respect of any tax (or taxes) under their care and management, and
(b)the Commissioners are under a duty to pay to that person at the same time an amount or amounts in respect of landfill tax.
(2)The regulations may provide that if the total of the amount or amounts mentioned in sub-paragraph (1)(a) above exceeds the total of the amount or amounts mentioned in sub-paragraph (1)(b) above, the latter shall be set off against the former.
(3)The regulations may provide that if the total of the amount or amounts mentioned in sub-paragraph (1)(b) above exceeds the total of the amount or amounts mentioned in sub-paragraph (1)(a) above, the Commissioners may set off the latter in paying the former.
(4)The regulations may provide that if the total of the amount or amounts mentioned in sub-paragraph (1)(a) above is the same as the total of the amount or amounts mentioned in sub-paragraph (1)(b) above no payment need be made in respect of the former or the latter.
(5)The regulations may include provision treating any duty to pay mentioned in sub-paragraph (1) above as discharged accordingly.
(6)References in sub-paragraph (1) above to an amount in respect of a particular tax include references not only to an amount of tax itself but also to other amounts such as interest and penalty.
(7)In this paragraph “tax” includes “duty”.