CIRD13060 | Core computational rules: taxable credits: revaluation of intangible assets: example
From HM Revenue & Customs · Corporate Intangibles Research and Development Manual
Calculation of taxable credit on revaluation: Example
Assume an intangible asset that has a fair value that can be determined by reference to an active market value was purchased for £1000 and amortised at £100 per annum. At the end of year 4 it had a carrying value of £600. It is then revalued to £1100 in the accounts and an accounting gain of £500 recognised.
As a result of a reinvestment relief claim (CIRD20000 onwards) its tax cost on acquisition was £800. The annual deductible debits have therefore been £80 (£800 / £1000 x £100) rather than £100. The tax written down value at the end of year 4 is £800 - [4 x £80 = £360] = £480.
The taxable credit on the revaluation is the lesser of:
the accounting gain adjusted in the ratio which the tax value of the asset bore to the accounting value immediately before the revaluation, and
the total debits deducted for previous periods.
That is the lesser of:
£500 x £480 / £600 = £400, and
4 x £80 = £320.
So the taxable credit is £320. The balance of the uplift (£500 - £320 = £180) is disregarded.
See CIRD12790 for the computation of subsequent deductions for the amortisation or impairment of the asset.