822Method of calculating gain
(1)Subsections (3) to (5) apply for calculating a gain for the purposes of this Part.
(2)But, except so far as those subsections make provision, such method is to be used for those purposes as is just and reasonable in the circumstances.
(3)The method must—
(a)take into account the value of what is obtained for disposing of the land, and
(b)allow only such expenses as are attributable to the land disposed of.
(4)If a freehold is acquired and on disposal the reversion is retained, account may be taken of the way in which trading profits are calculated in such a case.
(5)Account may be taken of the adjustments to be made in calculating trading profits under section 136 of CTA 2009 (lease premiums etc: reduction of receipts).
(6)In this section “trading profits” means the profits under Part 3 of CTA 2009 (trading income) of a company dealing in land.
(7)In the application of this section in Scotland—
“freehold” means the interest of the owner, and
“reversion” means the interest of the landlord in property subject to a lease.
(8)See also section 826 (valuations and apportionments).