Around one in six people in the UK may have paid more to HM Revenue and Customs than they needed to due to making errors in their self-assessment tax returns.
A study by Which? found that 16% of people said they had made a mistake on their return that resulted in them overpaying, while 28% stated they found the forms difficult to complete. The most common issue was struggling to find all their receipts and records - named by a third of respondents - while 28% thought the form was hard to understand and 14% spent most of their time looking up definitions of tax terminology.
When asked what would make the process easier, a third of people suggested having a checklist of information they would need to submit, while 25% would like to see examples they could use as a guide. A further quarter said they would need to turn to expert advice in order to complete the return accurately.