A recent Tax Court judgment has reinforced a critical lesson for taxpayers and businesses: missed deadlines cannot simply be corrected through future tax returns.

Most people understand the frustration of finding an old receipt after the returns window has closed. The shop may be sympathetic, but the answer is usually the same: the time to claim has passed.

A recent South African Tax Court judgment tells a much more expensive version of that story.

This was not about a forgotten grocery slip or a late warranty claim. It was about a fuel distributor, missed refund claims, and a R38.8 million tax deduction that SARS refused to allow. The case is a useful warning for businesses, accountants and ordinary taxpayers alike: in tax, timing is not a technicality. It can determine whether a claim is accepted or rejected.

The taxpayer in the case was a licensed fuel distributor. It bought fuel from South African manufacturers and sold that fuel to customers outside South Africa.