Generally Accepted Accounting Practice (UK)
Generally Accepted Accounting Practice in the UK, or UK GAAP or GAAP (UK), is the overall body of regulation establishing how company accounts must be prepared in the United Kingdom. Company accounts must also be prepared in accordance with applicable company law (for UK companies, the Companies Act 2006; for companies in the Channel Islands and the Isle of Man, companies law applicable to those jurisdictions).
Source: Wikipedia — Generally Accepted Accounting Practice (UK) (CC BY-SA 4.0)