Tribunal rejects reliance on adviser as reasonable excuse

In the case, the taxpayer argued that their failure to file on time was due to reliance on their adviser, who had been responsible for handling their tax affairs. HMRC rejected this explanation and issued late filing penalties. The tribunal agreed with HMRC. It found that while taxpayers may appoint an agent, responsibility for meeting filing deadlines ultimately remains with the taxpayer. Simply assuming that an adviser will deal with matters is not sufficient to establish a reasonable excuse.

The decision reflects a consistent line in tribunal cases that reliance on a third party will only amount to a reasonable excuse in limited circumstances, such as where the taxpayer has taken reasonable steps to ensure compliance and an unexpected failure occurs. The practical message is clear. Even where an accountant is engaged, you should ensure deadlines are understood and met. Regular communication with advisers and monitoring of filing obligations can help prevent avoidable penalties.