Upvote:13
While you may add your financials to prove you are able to support their visit, your brother still needs to show evidence of this financial situation, which is required to evaluate his ties to his country.
I don’t quite understand how he can be “self employed for your dad’s company”. Either he is self-employed, or he is salaried in your father’s company.
The second option is usually a lot better for establishing his situation, as long as:
Do that for 6 months, and you have a nice clear picture to present in the application: he has a job, he gets his wages, and all documents confirm the situation.
There are of course alternatives, but they can get quite a bit more complex to show unequivocally. No separation between business and personal accounts, irregular wages, cash payments, lack of pay slips or tax returns, missing expenses, all of that will quickly lead to refusals just because the ICO just can’t be have a clear picture. Paint the picture they want to see. For real, of course.