(1)Any income, so far as it falls within—
(a)any Chapter of this Part, and
(b)Chapter 2 of Part 2 (receipts of a trade, profession or vocation),
is dealt with under Part 2.
(2)Any income, so far as it falls within—
(a)any Chapter of this Part, and
(b)Chapter 3 of Part 3 so far as the Chapter relates to a UK property business,
is dealt with under Part 3.
(3)Any income, so far as it falls within—
(a)any Chapter of this Part, and
(b)Chapter 2 or 3 of Part 4 (interest and dividends etc. from UK resident companies etc.),
is dealt with under the relevant Chapter of Part 4.
(4)Any income, so far as it falls within—
(a)any Chapter of this Part, and
(b)Part 2, 9 or 10 of ITEPA 2003 (employment income, pension income or social security income),
is dealt with under the relevant Part of ITEPA 2003.