If you’re self-functioning, proving your personal income can be trickier than if you were an employee. After you’ve worked out all your costs, a lender might not be convinced that your earnings will cover the mortgage. We don’t think that’s fair, which is why we create an answer.
An excellent SA302 or income tax seasons overview (a summary of their said earnings, provided by HMRC after you have filed your income tax get back – find out how to have it)