Where there is an agreement between the Treasury and the Scottish Ministers for identifying an amount agreed to represent the standard rate VAT attributable to Scotland for any period ("the agreed standard rate amount"), the amount described in subsection (3) is payable under this section in respect of that period.
Where there is an agreement between the Treasury and the Scottish Ministers for identifying an amount agreed to represent the reduced rate VAT attributable to Scotland for that period ("the agreed reduced rate amount"), the amount described in subsection (4) is payable under this section in respect of that period.
The amount payable in accordance with subsection (1) is the amount obtained by multiplying the agreed standard rate amount by—
The amount payable in accordance with subsection (2) is the amount obtained by multiplying the agreed reduced rate amount by—
The payment of those amounts under section 64(2A) is to be made in accordance with any agreement between the Treasury and the Scottish Ministers as to the time of the payment or otherwise.