PAYE21180 | Employer records: maintain employer record: maintain trade name
From HM Revenue & Customs · PAYE Manual
The trade name is the name under which the employer trades. It may also be referred to as the business name.
You may receive notification of a change to the trade name from various sources. These may include
Correspondence from the employer contractor or agent
Notification from another section or office
Use the information provided to amend the employer record using Function AMEND EMPLOYER SUMMARY.