Practitioner reports highlight questions about a client's actual business activity when both parties work on a self-employed basis.
The useful distinction is between identifying the client and explaining the work being carried out. A registration document describes the business's legal identity. Contracts, a description of services and supporting commercial records can help explain the relationship. This is a preparation perspective, rather than a newly announced universal checklist.
For applicants, the practical task is to make the arrangement easy to follow: who provides the service, who pays for it and how the documents connect. When a client operates as a sole trader, consistent names and a clear description of the activity become particularly helpful.
The reporting does not establish one document package that will work for everyone. The underlying question is worth addressing early: does the application explain a real professional relationship, rather than only the existence of a registered business?