5.—(1) In a case to which neither paragraph 3 nor 4 applies to the relevant person, and subject to sub-paragraph (2), where the relevant person’s applicable amount includes an amount by way of the carer premium under Schedule 1 (applicable amounts), £15 of the earnings of the person who is, or at any time in the preceding 8 weeks was, in receipt of invalid care allowance or treated in accordance with paragraph 15(2) of that Schedule as being in receipt of invalid care allowance.
(2) Where the carer premium is awarded in respect of the relevant person and of any partner of his, their earnings shall, for the purposes of this paragraph, be aggregated, but the amount of earnings to be disregarded in accordance with sub-paragraph (1) shall not exceed £15 of the aggregated amount.