656Adjustments of liabilityU.K.
(1)If an adjustment of a self-build society's liability to corporation tax is necessary as a result of a claim under section 651, the adjustment may be made by an assessment, by repayment of tax or otherwise.
(2)A self-build society's liability to corporation tax may be adjusted by means of assessments or otherwise if—
(a)a claim by the society under section 651 or 652 is included in a company tax return,
(b)an enquiry is made into the tax return, and
(c)an amendment is made to the tax return as a result of the enquiry.
(3)A self-build society's liability to corporation tax may be adjusted by means of assessments or otherwise if—
(a)an enquiry is made under paragraph 5 of Schedule 1A to TMA 1970 into a claim made by the society under section 651 or 652, or into an amendment of such a claim, and
(b)an amendment is made to the claim as a result of the enquiry.
(4)Adjustments under subsection (2) or (3) may be made for all relevant accounting periods.