Duties wholly performed outside the United Kingdom
1(1)Where the duties of an office or employment are performed wholly outside the United Kingdom and are performed wholly or partly while the holder of the office or employment is absent from the United Kingdom for a continuous period, a deduction shall be allowed in charging tax on the emoluments from that office or employment under Case I of Schedule E.
(2)The deduction shall, in a case falling within sub-paragraph (3) below, be equal to the whole, and, in any other case, be equal to one-quarter, of so much of the amount of the emoluments as is attributable to the continuous period.
(3)A case falls within this sub-paragraph if the continuous period during which the holder of the office or employment is absent from the United Kingdom, including any part of it falling outside the year of assessment, includes 365 or more qualifying days ; and for this purpose a day is a qualifying day if on that day he is the holder of that or any other office or employment the duties of which are, in the year of assessment to which that day belongs, performed wholly outside the United Kingdom.
(4)Where emoluments from an office or employment the, duties of which are wholly performed outside the United Kingdom are paid for a period of leave immediately following a period of continuous absence from the United Kingdom, they shall be attributed for the purposes of this paragraph to that period of absence but shall for other purposes of Case I of Schedule E be treated as emoluments for duties performed outside the United Kingdom during the period of leave.
2For the purposes of paragraph 1 above a period in which the holder of an office or employment is absent from the United Kingdom is continuous unless during that period he is present in the United Kingdom—
(a)on more than sixty-three consecutive days ; or
(b)on more days (whether consecutive or not) than one-sixth of the number of days in the period ;
and he shall be treated as present in the United Kingdom throughout any day on which he arrives there but as absent from the United Kingdom on any day on which he departs from there.