My small limited company has been flat VAT registered for about 7 years. I work as an electrical engineer designing and specifying equipment. I think I've been over paying on the flat rate vat. Last year I was paying 12% and I find out now many of the ex umbrella type companies now operating as accountants were recommending 10.5%. The VAT has now changed and its looks as though I need to go from 13% to 14.5% whereas the others seem to be lifting from 10.5% to 12%. Because I've been operating like this for a few years now am I stuffed with the higher rate. My next VAT return is due is it worth just dropping both figures. The HM site goes on about architects and civil engineers - these attract the higher rate whereas other engineers surely should attract the lesser figure. Any thoughts.