“… the First-tier Tribunal has only that jurisdiction which has been conferred on it by statute, and can go no further, …It is impossible to read the legislation in a way which extends its jurisdiction to include—whatever one chooses to call it—a power to override a statute or supervise HMRC’s conduct.”
“... reliance on a third party “can” be a reasonable excuse, not that it necessarily always will be a reasonable excuse.”
“The obligation to make the tax return on time is nonetheless the taxpayer’s. It remains his obligation regardless of the fact that he may have delegated the task of making the return to his agent. There may be circumstances in which the taxpayer’s failure, through his agent, to comply with, eg, the obligation to make the return on time can amount to a “reasonable excuse”
“56. It seems to us that reliance on an agent may be an excuse or a reason for non compliance, but such reliance is normal and customary, and the statute cannot have intended such reliance to constitute a reasonable excuse in every case. It seems to us that it cannot be the intention of legislation to permit the reliance on a competent person who fails unreasonably to fulfil the task with which he is entrusted to absolve the principal in all cases. 57. We concur with the President when he said that to be a reasonable excuse the excuse must be something exceptional. In our view, in determining whether or not that is the case it may be necessary to consider why the agent failed (and thereby to regard the agent as an arm of the taxpayer). To give a simple example, if a return was given to someone to post, and that person failed to do so, the reasons for that failure will illuminate whether or not there is a reasonable excuse: if the messenger was run over by a bus the position will be different from the case where the messenger merely forgot.”