South Africa: Constitutional validity of retrospective legislation

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

South Africa: Constitutional validity of retrospective legislation

intl-updates-small.jpg

The recent High Court decision of Pienaar Brothers (Pty) Ltd v Commissioner for the South African Revenue, a highly important judgment dealing with the constitutionality of retrospective legislation, underscores the importance for taxpayers of participating in or at least being aware of the public consultation process around proposed tax amendments in order to be forewarned of pending changes.

The court in this case was faced with the fundamental issue of whether retrospective legislation that applies to completed transactions is a violation of the rule of law and the principle of legality, principles deeply entrenched in the South African Constitution.

The court noted that South African case law distinguishes between retrospectivity in a "strong" and a "weak" sense. A provision is retrospective in the "strong" sense if the provision applies from an earlier date than the date on which it is enacted. A provision is retrospective in a weak sense if it affects future consequences of existing transactions or matters. Two issues were considered, namely whether an amendment, which resulted in retrospectivity in a "strong" sense should be declared to be unconstitutional, and also whether the wording of the specific amendment that was relevant actually affected the transaction of the taxpayer, since it did not state explicitly that it applied to completed transactions.

On the interpretational issue, the court disagreed with the taxpayer's arguments that the amendment resulted in anomalous and unfair consequences. The purpose of the amendment was to close an unintended loophole, which allowed for a specific exemption in respect of secondary tax on companies on certain distributions, with a resultant loss to the fiscus. The court agreed with the tax authorities that a purely prospective amendment would have encouraged taxpayers to exploit the loophole in time remaining before the loophole closed.

The court held that the amendment was clear, its purpose was rational and that it applied to all transactions, including completed transactions.

On the constitutional issue, the court considered approaches to the issue followed in foreign jurisdictions as well as prior guidance given by the Constitutional Court. The court agreed with submissions made that retrospective laws are permissible and common place in countries based on the rule of law. However, this did not mean that Parliament could enact retrospective legislation as it pleased. The constitutional validity of retrospective legislation was still be judged by the standards of judicial review, i.e. whether the amendment was (i) rational; and (ii) reasonable or proportional relative to the infringement of fundamental rights of taxpayers.

The court, somewhat controversially, held that the rule of law did not require fair warning of the proposed retrospective amendment to be given to taxpayers before the enactment and that in any event the public consultation process carried out when the amendment was proposed would have provided any taxpayer seeking to exploit the STC exemption with more than adequate notice that the elimination of this particular tax planning opportunity was imminent.

This case is going on appeal and it will be interesting to monitor developments on the pertinent issues.

chong.jpg

 

Joon Chong

Joon Chong (joon.chong@webberwentzel.com), Cape Town

Webber Wentzel

Website: www.webberwentzel.com

more across site & shared bottom lb ros

More from across our site

The flagship 2025 tax legislation has sprawling implications for multinationals, including changes to GILTI and foreign-derived intangible income. Barry Herzog of HSF Kramer assesses the impact
Hani Ashkar, after more than 12 years leading PwC in the region, is set to be replaced by Laura Hinton
With the three-year anniversary of the PwC tax scandal approaching, it’s time to take stock of how tax agent regulation looks today
Rolling out the global minimum tax has increased complexity, according to Baker McKenzie; in other news, Donald Trump has announced a 25% tariff on countries doing business with Iran
Among those joining EY is PwC’s former international tax and transfer pricing head
The UK firm made the appointments as it seeks to recruit 160 new partners over the next two years
The network’s tax service line grew more than those for audit and assurance, advisory and legal services over the same period
The deal is a ‘real win’ for US-based multinationals and its announcement is a welcome relief, experts have told ITR
Tom Goldstein, who is now a blogger, is being represented by US law firm Munger, Tolles & Olson
In looking at the impact of taxation, money won't always be all there is to it
Gift this article