(1) In respect of income derived during the year ending on 30 June 1938 and during any subsequent year or during any accounting period adopted in lieu of any such year, the foregoing provisions of this Division shall not apply except in respect of income derived by a primary producer.
(2) For the purposes of this section, primary producer means a person who carries on in Australia a primary production business.
(3) Subject to subsection (3A), for the purposes only of determining whether a person is carrying on a primary production business, a beneficiary in a trust estate shall, to the extent to which he or she is presently entitled to the income or part of the income of that estate, be deemed to be carrying on the business carried on by the trustees of the estate which produces that income.
(3A) Subsection (3) does not operate to deem a beneficiary in a trust estate who is presently entitled to the income or a part of the income of that estate to be carrying on the business carried on by the trustees of the trust estate in a year of income unless:
(a) the share of the income of that trust estate of the year of income to which the beneficiary is presently entitled is not less than $1,040; or
(b) the Commissioner is satisfied that the interest of the beneficiary in the trust estate was not acquired by, or granted to, the beneficiary for the purpose, or primarily for the purpose, of enabling the provisions of this Division to apply in respect of income derived by the beneficiary.
(4) If in any year in respect of which this Division applies only to taxpayers who are primary producers, a taxpayer was not carrying on business as a primary producer, that year shall not be counted as an average year and the provisions of this Division shall apply to the income thereafter derived by the taxpayer as if he or she had never been a taxpayer before that year.