“…to be special the event must be something out of the ordinary, something uncommon; …”
“[53.] We were not referred to (and could not find) any authority on the meaning of "special circumstances". Plainly it must mean something different from, and wider than, reasonable excuse, for (i) if its meaning were confined within that of reasonable excuse, paragraph 9 would be otiose, and (ii) because paragraph 9 envisages a reduction in a penalty rather than absolution, it must be capable of encompassing circumstances in which there is some culpability for the default: where it is right that some part of the penalty should be borne by the taxpayer. [54.] The adjective "special” requires simply that the circumstances be peculiar or distinctive. But that does not necessarily mean that the circumstances which affect all or most taxpayers could not be special: an ultra vires assertion by HMRC that for a period penalties would be halved might well be special circumstances; but generally special circumstances will be those confined to particular taxpayers or possibly classes of taxpayers. They must encompass the situation in which it would be significantly unfair to the taxpayer to bear the whole penalty.”