"(d) a return to be made where no payments have been made in the period to which the returned relates."
"(2) ... where a person had a reasonable excuse for not doing anything required to be done he shall be deemed not to have failed to do it unless the excuse ceased and, after the excuse ceased he shall be deemed not to have failed to do it if he did it without unreasonable delay after the excuse ceased."
“ 17. The Code (i.e. Part X of TMA) does not qualify the expression “reasonable excuse” by, for example, ruling out reliance on another to perform a task such as making a tax return. 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, e.g, the obligation to make the return on time can amount to a “reasonable excuse”