INTM332620 | Double Taxation applications & claims: permanent establishment and special relationship: When you have to consider PE
From HM Revenue & Customs · International Manual
You will usually only have to consider this condition for relief in the following types of cases
claims on an individual claim form where the claimant has answered ‘yes’ to the question about carrying on a ‘trade or business in the UK’. The most common type will be claims by Lloyds Underwriters
claims by companies where they answer ‘yes’ to the question about being engaged in trade or business in the UK.
In the majority of cases where PE is a condition for relief this information will be given to you by the relevant HMRC office in answer to various questions (on forms in 4450/FD series) you need to ask as part of the examination process. There is a separate Article (usually Article 5 in the more modern DTAs) in the DTA which defines Permanent Establishment.