Clubman, b/f has tax clearance cert etc, in my opinion he wouldn't have got the loan in his name in the first place if there were any such issues, every bank will ask for 2 years accounts when applying for a loan when self employed. He's accounts are up to date, with cash in hand nixers, the majority of these cases are clients who wont pay VAT, want to deal in cash, tbh he would have to lodge most money into his account so tries not to deal in such things, but again with current situation its hard to turn away work no matter how you are being paid. I appreciate you wanted a bigger picture, thanks for your help.