CG76725 | Wasting assets: goodwill

From HM Revenue & Customs · Capital Gains Manual

TCGA92/S44

The goodwill of a business will last for as long as the business continues. Unless, therefore, it was clear when a business started that it would cease trading completely within fifty years or less, goodwill should not be treated as a wasting asset.

CG68000C tell you more about goodwill.