Book Keeping
It is a legal requirement to keep books of records for a UK business for at least six years. If asked by HMRC, a business has to provide the break-down of all the expenses claimed in tax returns. So it is imperative that you maintain your books and transactions in an organised way so that any details can be presented on demand. Also it is a good practice to maintain the books in a way that will enable you to track down any transaction to its root so that you do not pay your supplier more that you owe or claim the correct amount from your customer.