Section 738 | Asset not shown in balance sheet
From legislation.gov.uk
(1)This section applies if—
(a)there is a realisation of an intangible fixed asset, and
(b)neither section 735 (asset written down for tax purposes) nor section 736 (asset shown in balance sheet and not written down for tax purposes) applies.
(2)A credit equal to any proceeds of realisation must be brought into account for tax purposes.