Where the F2Secretary of State is calculating earnings of an employed earner or a self-employed earner under Part 1 of Schedule 1 and the information available in relation to those earnings is insufficient or unreliable, the F2Secretary of State may estimate those earnings and, in doing so, may make any assumptions as to any fact.

Where the F3Secretary of State is satisfied that the person is engaged in a particular occupation, whether as an employee or a self-employed person, the assumptions referred to in sub-paragraph (1) may include an assumption that the person has the average weekly earnings of a person engaged in that occupation in the United Kingdom or in any part of the United Kingdom.