Intangible assets (other than goodwill) arising on business combinations – Note 15
An intangible asset is capitalised separately from goodwill as part of a business combination at cost (fair value at date of acquisition).
Subsequent to initial recognition, intangible assets are carried at cost less any accumulated amortisation and any accumulated impairment losses. The carrying values of definite-lived intangible assets (the Group does not currently have any indefinite-lived intangible assets other than goodwill) are reviewed for indicators of impairment at each reporting date and are subject to impairment testing when events or changes in circumstances indicate that the carrying values may not be recoverable.
Intangible assets are amortised on a straight-line basis. In general, definite-lived intangible assets are amortised over periods ranging from one to ten years, depending on the nature of the intangible asset.
Amortisation periods, useful lives, expected patterns of consumption and residual values are reviewed at each financial year-end. Changes in the expected useful life or the expected pattern of consumption of future economic benefits embodied in the asset are accounted for by changing the amortisation period or method as appropriate on a prospective basis.