Section 124 | Giving effect to solutions to cases and mutual agreements resolving cases

(1)Subsections (2) and (4) apply if under, and for the purposes of, double taxation arrangements made in relation to a territory outside the United Kingdom—

(a)a person presents, to the Commissioners for Her Majesty's Revenue and Customs or to an authority in the territory, a case concerning the person's being taxed (whether in the United Kingdom or the territory) otherwise than in accordance with the arrangements, and

(b)the Commissioners arrive at a solution to the case or make a mutual agreement with an authority in the territory for the resolution of the case.

(2)The Commissioners are to give effect to the solution or mutual agreement despite anything in any enactment, and any such adjustment as is appropriate in consequence may be made.

(3)An adjustment under subsection (2) may be made by way of discharge or repayment of tax, the allowance of credit against tax payable in the United Kingdom, the making of an assessment or otherwise.

(4)A claim for relief under any provision of—

(a)the Tax Acts,

(b)the enactments relating to capital gains tax, or

(c)the enactments relating to petroleum revenue tax,

may be made in pursuance of the solution or mutual agreement at any time before the end of the period of 12 months following the notification of the solution or mutual agreement to the person affected, even if that involves making the claim after a deadline imposed by another enactment.

(5)See section 114A of FA 2015 for provision applying this section in relation to diverted profits tax.^F1