For the purpose of regulation 38(2)(b), an applicant’s unearned income must, except where paragraph (2) applies, be estimated over a period that is appropriate to allow the applicant’s average weekly income to be estimated accurately but the length of the period is not in any case to exceed 52 weeks F1....

The period over which any benefit under the benefit Acts is to be taken into account is the period in respect of which that benefit is payable.

For the purposes of this regulation unearned income is to be calculated in accordance with Chapter 4 of this Part.