(1) Subject to the other provisions of this section, a Revenue assessment on a person other than a chargeable person may be made or amended by a Revenue officer at any time not later than 4 years after the end of the chargeable period to which the assessment relates.

(2) In a case in which emoluments to which subsection (3) applies are received in a year of assessment subsequent to that for which they are assessable, a Revenue assessment on a person other than a chargeable person may be made or amended by a Revenue officer for the year of assessment for which the emoluments are assessable at any time not later than 4 years after the end of the year of assessment in which the emoluments were received.

(3)The emoluments to which this subsection applies are -

(a) emoluments within the meaning of section 112(2), including any payments chargeable to tax by virtue of section 123 and any sums which by virtue of Chapter 3 of Part 5 are to be treated as perquisites of a person’s office or employment, being emoluments, payments or sums other than those taken into account in an assessment to income tax for the year of assessment in which they are received and, for the purposes of subsection (2) -