Contesting a Will in South Africa: Grounds, Procedure and Evidence

The will has been read, and something is wrong — or at least that is what you believe. An asset everyone assumed would pass to the children has gone elsewhere. A sibling who was barely present in the deceased's final years is the sole heir. The signature doesn't look right. Or the person who managed the deceased's affairs in the months before death happens to be the primary beneficiary. You want to challenge it. But wanting to challenge a will and having grounds to do so are different things.

South African law takes testamentary freedom seriously. A person of sound mind is entitled to dispose of their estate however they choose — to leave everything to one child and nothing to another, to exclude a spouse in favour of a charity, to make provisions that strike the rest of the family as deeply unfair. The courts will not interfere with that choice simply because the outcome seems unjust. What the courts will scrutinise is whether the person making the will was actually in a position to make it freely and competently.

What courts actually examine

Testamentary capacity requires that the testator understood the nature and effect of a will, knew the extent of their assets, was aware of the natural objects of their bounty — their family and dependants — and understood how the will distributed their estate. Dementia, severe mental illness, or the confusion that can accompany terminal illness may deprive a person of this capacity, but the test is specific to the moment of signing, not to the person's general state of health. Someone may have fluctuating capacity. A will signed during a moment of clarity by someone who is otherwise confused may still be valid.

Undue influence is the ground most often raised and, in practice, one of the most difficult to prove. It requires showing that pressure over the testator was so overpowering that their free will was effectively overborne — that the will reflects someone else's wishes rather than their own. Natural affection, persuasion, and even persistent pressure do not constitute undue influence unless they rise to a level that destroys the testator's independence of mind. Courts look for evidence of a relationship of dominance and exploitation, usually combined with a testator who was particularly vulnerable.

Formal defects are cleaner to identify. The Wills Act prescribes that a will must be signed by the testator at the end of the document, in the presence of two competent witnesses who must also sign in the testator's presence. A will that does not comply can be declared invalid — though the court has a discretion under section 2(3) of the Wills Act to condone non-compliance if it is satisfied that the document was indeed intended to be the testator's will. This condonation power means that not every technical defect is fatal, but it also means that the outcome of a formal challenge is not always predictable.

Evidence and timing

The evidentiary requirements depend entirely on the ground being pursued. For a capacity challenge: medical records from around the time the will was signed, together with testimony from people who had direct contact with the deceased. For undue influence: evidence of the relationship between the influencer and the testator, and the circumstances under which the will was made. For forgery: expert handwriting analysis.

There is no fixed prescription period for contesting a will — but the practical window is not unlimited. Once an estate has been administered and assets distributed, recovery becomes extremely difficult and may require further litigation against heirs who have already received what they were given. The earlier an attorney is consulted, the more options remain available.

One point worth understanding clearly: even if a will challenge fails, a dependant who has not been adequately provided for may have a separate maintenance claim against the estate under the Maintenance of Surviving Spouses Act or, where minor children are involved, under the common law duty of support. These are distinct from a challenge to the will's validity and survive even where the will stands.

If you believe there are genuine grounds to challenge a will, the starting point is an honest legal assessment of the evidence you actually have — not the outcome you want. Most challenges that fail do so because the evidence was genuinely insufficient, not because the family's suspicions were unreasonable. Getting that assessment early, before significant costs are incurred, is the most important step.

This article is part of our Estates & Trusts practice. If you are dealing with this situation, speak to one of our directors directly.

Disclaimer: This article is general information, not legal advice. The law is stated as at the date of first publication and may since have changed. Reading it does not create an attorney–client relationship. For advice on your specific circumstances, speak to one of our directors. See our full disclaimer.