The general rule under the corporate intangible assets regime in Part 8 of the Corporation Tax Act 2009 (CTA 2009) is that a company’s gains and losses in respect of its intangible fixed assets (IFAs) are computed and brought into account as credits and debits for corporation tax purposes in line with the accounting treatment of those IFAs. In other words, a company’s accounts, prepared in compliance with generally accepted accounting practice (GAAP), provide the basis from which the taxable and relievable items and amounts in respect of a company’s IFAs are derived. This principle is often referred to as ‘tax following the accounts’. There are, however, several exceptions to this general principle where the corporate intangible assets rules prescribe a departure from the accounts and require IFA credits and debits to be calculated on a different basis. For more on the tax treatment of IFAs generally, see Practice Note: How intangible fixed assets are taxed—basic principles. One area where the tax rules can depart from reliance on the company's accounts