This section applies for the purposes of section 240.
A loss of tax is brought about carelessly by a person if the person fails to take reasonable care to avoid bringing about that loss.
Where—
information is provided to Her Majesty's Revenue and Customs,
the person who provided the information, or the person on whose behalf the information was provided, discovers some time later that the information was inaccurate, and
that person fails to take reasonable steps to inform Her Majesty's Revenue and Customs,
any loss of tax brought about by the inaccuracy is to be treated as having been brought about carelessly by that person.
References to a loss of tax brought about deliberately by a person include a loss of tax brought about as a result of a deliberate inaccuracy in a document given to Her Majesty's Revenue and Customs by or on behalf of that person.