Will you get extra tax bill after HMRC mistake?

Emma Woollacott

Around three and a half million people are set to receive a demand for more tax, after an admission by HM Revenue and Customs that it miscalculated payments through the Pay As You Earn system.

Despite the fact that HMRC has introduced a new £300 million computer system to handle payments, it took the wrong amount of tax from five and a half million people in 2013-14. While a lucky two million of these are now set to get a rebate later this year, many more will receive a demand for extra payment - averaging £300 each.