All we seem to read is that HMRC are out to get you. The Tax Media is full of threats of penalties and interest and various other terrifying statements. Provided that you take care with your records and keep receipts and records of all of your sales and purchases, you should not have to worry. We cannot stress enough how important it is to keep your paperwork in an orderly fashion and do not claim for anything that you cannot fully substantiate. Get on with your business and do not let fear and intimidation hold you back from being the best at your job and enjoying your work.