“29(1) If an officer of the Board or the Board discover, as regards any person (the taxpayer) and a year of assessment – (a) that any income which ought to have been assessed to income tax, or chargeable gains which ought to have been assessed to capital gains tax, have not been assessed, or (b) that an assessment to tax is or has become insufficient, or – (c) that any relief which has been given is or has become excessive The officer or, as the case may be, the Board may, subject to subsections (2) and (3) below, make an assessment in the amount, or further amount, which ought in his or their opinion to be charged in order to make good to the Crown the loss of tax.” “29(3) Where the taxpayer has made and delivered a return under section 8 or 8A of this act in respect of the relevant year of assessment, he shall not be assessed under subsection (1) above – (a) in respect of the year of assessment mentioned in that subsection; and (b) in the same capacity as that in which he made and delivered the return, Unless one of two conditions mentioned below is fulfilled.” “29(4) The first condition is that the situation mentioned in subsection (1) above is attributable to the fraudulent or negligent conduct on the part of the taxpayer or a person acting on his behalf.” “29(5) The second condition is that at the time when an officer of the board – (a) ceased to be entitled to give notice of his intention to enquire into the taxpayer’s return under section 8 or 8A of this Act in respect of the relevant year of assessment; or (b) informed the taxpayer that he had completed his enquiries into that return; The officer could not have been reasonably expected on the basis of the information made available to him before that time, to be aware, of the situation mentioned in subsection (1) above.”
“A deduction is allowed from earnings from an employment as a seafarer if: - (a) the earning are relevant taxable earnings, (b) the duties of the employment are performed wholly or partly outside the United Kingdom, and (c) any of those duties are performed in the course of an eligible period.”
“In this chapter “ship” does not include an offshore installation.”
“837c(1) For the purposes of the Corporation Tax Acts unless the context otherwise requires, “offshore installation” means a structure which is, is to be, or has been, put to a use specified in subsection (2) while – (a) standing in any waters (b) stationed (by whatever means) in any waters, or (c) standing on the foreshore r other land intermittently covered with water.” “837c(2) The uses are: (a) use for the purposes of exploiting mineral resources by means of a well; (b) use for the purposes of exploration with a view to exploiting mineral resources by means of a well; (c) use for the storage of gas in or under the shore or the bed of any waters; (d) use for the recovery of gas so stored; (e) use for the conveyance of things by means of a pipe; (f) use mainly for the provision of accommodation for persons who work on or from a structure which is, is to be, or has been, put to a use specified in any of paragraphs (a) to (e) while – (a) standing in any waters (b) stationed (by whatever means) in any waters, or (c) standing on the foreshore or other land intermittently covered with water.”