“The test of whether or not there is a reasonable excuse is an objective one. In my judgment it is an objective test in this sense. One must ask oneself: was what the taxpayer did a reasonable thing for a responsible trader conscious of and intending to comply with his obligations regarding tax, but having the experience and other relevant attributes of the taxpayer and placed in the situation that the taxpayer found himself at the relevant time, a reasonable thing to do?”
"The tax year in which the deduction was made, has ended and the qualifying sub-contractor has delivered the return required by regulation 73 of the PAYE Regulations (annual return of relevant payments liable to deductions of tax)."