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 2025

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

They also warned against an ‘unnecessary duplication of efforts’ in UN tax convention negotiations; in other news, White & Case has hired Freshfields’ former French tax head
Awards
Submit your nominations to this year's WIBL EMEA Awards by 6 February 2026
Defending loss situations in TP is not about denying the existence of losses but about showing, through proactive measures, that the losses reflect genuine commercial realities
Further empowerment of HMRC enforcement has been praised, but the pre-Budget OBR leak was described as ‘shambolic’
Michel Braun of WTS Digital reviews ITR’s inaugural AI in tax event, and concludes that AI will enhance, not replace, the tax professional
The report is solid and balanced as it correctly underscores the ambitious institutional redesign that Brazil has undertaken in adopting a dual VAT model, experts tell ITR
The Brazilian law firm partner warns against going independent too early, considers the weight of political pressure, and tells ITR what makes tax cool
The lessons from Ireland are clear: selective, targeted, and credible fiscal incentives can unlock supply and investment
The ITR in-house award winner delves into his dramatic novelisation of tax transformation, and declares that 'tax doesn’t need AI right now'
Recent news of job cuts at EY is symptomatic of how the PwC controversy has tarnished the reputation of the entire ‘big four’
Gift this article