Every business must keep records of the transactions it makes, to comply with rules set by HM Revenue & Customs (HMRC).
ICAEW chartered accountant Nila Khan explains why it's so important.
Record-keeping and the law
Whether you're trading as a sole trader or limited company at the end of each financial year, you need to complete a tax return in the required format and send it to HMRC. Sole traders return figures on a Self Assessment tax return, while companies will complete a Corporation Tax return.
In both cases, HMRC require the figures declared on these tax returns to be supported by proper documentation. As a result, by law, your business must keep records that show the transactions it has undertaken.