In the decision of Mackie v Commissioner of Taxation (Taxation) [2024] AATA 619 (3 April 2024), the Administrative Appeals Tribunal (Tribunal) affirmed the decision of the Commissioner to decline to exercise the discretion in section 291-465(1) of the Income Tax Assessment Act 1997 (Cth) (ITAA 97) to disregard or allocate to another year the taxpayer’s concessional superannuation contributions.