UKBA aren't too fussed over applicant's income, except that it shows they have been in work and may have reasonable job prospect in UK to help with maintenance as well as any savings they can bring over. So I wouldn't bother with detailed explanation or just write briefly on margin what the payments represent.Coops said:For a few months, my wife did nannying part time for one of her former college professors. Since she has to send in her bank statements with her documentation, she is wondering how to explain this weekly check being deposited into her account. She could get a written statement from her employer, verifying her position and the source of her wages. But then she wonders if the fact that taxes were not taken out would be an issue. While her income was not enough to warrant taxes being deducted anyway, it's still a difficult thing to get around. Would the UK govt ask question about the taxes, and hold it against her that tax was not taken out for those wages?