HMRC has published updated guidance on deliberate behaviour. It clarifies the definition of these actions in respect of extended time limits.

What is deliberate behaviour?

A deliberate inaccuracy in a document occurs when a person (or another person acting on behalf of that person) knowingly gives HMRC an inaccurate document.

“A person who submits a document containing a deliberate inaccuracy might assert that they did not intend to cause a loss of tax. For the purpose of assessing this loss of tax, the person or any persons acting on their behalf will be treated as deliberately causing the loss of tax if they consciously intended to mislead HMRC”.

Source Marcus Ward