PVL3704 Assignment 1
(COMPLETE ANSWERS)
Semester 2 2026 - DUE
17 August 2026
For assistance contact
Email:
, Part 1: Discussion of the Sine Causa Requirement
The core requirement of unjustified enrichment liability in South African law is that the enrichment must
be sine causa (without legal cause or justification). [1, 2]
Definition and Purpose
An enrichment is sine causa if there is no valid legal ground—such as a contract, a statutory obligation, a
delictual duty, or a court order—that justifies the defendant retaining the transfer of value or benefit
from the plaintiff’s estate. If a valid legal cause exists for the transfer, the enrichment is considered
"justified," and an enrichment action cannot succeed. [1, 2, 3]
Academic and judicial opinions have defined this requirement across two primary schools of thought: [1,
2, 3]
Professor Wouter de Vos's view: Enrichment is unjustified when there is no sufficient legal
ground (regsgrund) for the transfer or retention of value. [1]
Professor J.C. van der Walt's view: Enrichment is sine causa if there is no binding obligation in
existence between the enriched person and the impoverished person. [1]
Case Law Developments
South African courts traditionally evaluate sine causa within specific common-law actions (condictiones),
but recent jurisprudence highlights a shifts toward a generalized definition: [1]
McCarthy Retail Ltd v Shortdistance Carriers CC (2001): The Supreme Court of Appeal (SCA)
affirmed that while South African law does not yet formally recognize a single, unified general
enrichment action, the requirement that enrichment must be sine causa acts as the primary
limiting factor to prevent arbitrary or unfair liability. [1]
First National Bank of Southern Africa Ltd v Perry NO (2001): The SCA emphasized a more
flexible deployment of enrichment actions, observing that where money is transferred under a
fundamental mistake or a void transaction, the absence of a lawful cause inherently makes the
retention sine causa, allowing the plaintiff to claim via a condictio. [1, 2]
Part 2: Legal Advice to A
1. Identified Remedy
A will be able to reclaim the R300,000 using the condictio indebiti. [1, 2]
Ordinarily, the condictio indebiti requires that a payment was made under an excusable mistake of fact
or law (iusti error). However, A did not make a mistake; he knew the R300,000 was not owed. [1, 2, 3]
South African law accommodates A's precise dilemma through a recognized exception: an unowed
payment made involuntarily under duress or protest to avoid a threatened, severe harm (such as a
municipality cutting utility services to a factory) can be recovered using the condictio indebiti. This
(COMPLETE ANSWERS)
Semester 2 2026 - DUE
17 August 2026
For assistance contact
Email:
, Part 1: Discussion of the Sine Causa Requirement
The core requirement of unjustified enrichment liability in South African law is that the enrichment must
be sine causa (without legal cause or justification). [1, 2]
Definition and Purpose
An enrichment is sine causa if there is no valid legal ground—such as a contract, a statutory obligation, a
delictual duty, or a court order—that justifies the defendant retaining the transfer of value or benefit
from the plaintiff’s estate. If a valid legal cause exists for the transfer, the enrichment is considered
"justified," and an enrichment action cannot succeed. [1, 2, 3]
Academic and judicial opinions have defined this requirement across two primary schools of thought: [1,
2, 3]
Professor Wouter de Vos's view: Enrichment is unjustified when there is no sufficient legal
ground (regsgrund) for the transfer or retention of value. [1]
Professor J.C. van der Walt's view: Enrichment is sine causa if there is no binding obligation in
existence between the enriched person and the impoverished person. [1]
Case Law Developments
South African courts traditionally evaluate sine causa within specific common-law actions (condictiones),
but recent jurisprudence highlights a shifts toward a generalized definition: [1]
McCarthy Retail Ltd v Shortdistance Carriers CC (2001): The Supreme Court of Appeal (SCA)
affirmed that while South African law does not yet formally recognize a single, unified general
enrichment action, the requirement that enrichment must be sine causa acts as the primary
limiting factor to prevent arbitrary or unfair liability. [1]
First National Bank of Southern Africa Ltd v Perry NO (2001): The SCA emphasized a more
flexible deployment of enrichment actions, observing that where money is transferred under a
fundamental mistake or a void transaction, the absence of a lawful cause inherently makes the
retention sine causa, allowing the plaintiff to claim via a condictio. [1, 2]
Part 2: Legal Advice to A
1. Identified Remedy
A will be able to reclaim the R300,000 using the condictio indebiti. [1, 2]
Ordinarily, the condictio indebiti requires that a payment was made under an excusable mistake of fact
or law (iusti error). However, A did not make a mistake; he knew the R300,000 was not owed. [1, 2, 3]
South African law accommodates A's precise dilemma through a recognized exception: an unowed
payment made involuntarily under duress or protest to avoid a threatened, severe harm (such as a
municipality cutting utility services to a factory) can be recovered using the condictio indebiti. This
