(1) This section applies for the purpose of calculating the profits of a person carrying on a trade in a period of account if—

(a) a long funding operating lease terminates in that period of account, and

(b) the person is the lessor under that lease immediately before the termination.

(2) Step 1 is to find—

(a) the termination amount (TA);

(b) the total of any sums paid to the lessee that are calculated by reference to the termination value (LP).

(3) Step 2 is to find—

(a) the relevant value for the purposes of section 148D(6)(a) (RV);

(b) the total of the deductions allowable under section 148D for periods of account for the whole or part of which the person was the lessor before the termination of the lease (TD1);

(c) the amount, if any, (ERV) by which RV exceeds TD1.

(4) Step 3 is to find—

(a) the total of any amounts of capital expenditure incurred by the person which constitute additional expenditure for the purposes of section 148E in the case of the lease (TAE);

(b) the total of any deductions allowable under section 148E for periods of account for the whole or part of which the person was the lessor before the termination of the lease (TD2);

(c) the amount, if any, (EAE) by which TAE exceeds TD2.

(5) Step 4 is to find the total of ERV and EAE (T).

(6) If (TA − LP) exceeds T, treat a profit of an amount equal to the excess as arising to the person in the period of account in which the lease terminates.

(7) If T exceeds (TA − LP), treat a loss of an amount equal to the excess as arising to the person in that period of account.

(8) A profit or loss treated as arising to the person under subsection (6) or (7) is to be treated—

(a) in the case of a profit, as income of the person attributable to the lease,

(b) in the case of a loss, as a revenue expense incurred by the person in connection with the lease.

(9) In calculating the profits of the person for the period, no deduction is allowed in respect of any sums paid to the lessee that are calculated by reference to the termination value.