Originally published: 31 August 2016 | Last updated: 22 June 2025
Properly signing and witnessing your Will is essential for its legal validity in South Africa. The Wills Act 7 of 1953 sets out strict requirements for execution—failure to comply can invalidate your entire Will. An Affidavit of Execution, while optional, provides additional legal protection by confirming the signing process was followed correctly.

What Are the Signing Requirements for a Will in South Africa?
Under the Wills Act 7 of 1953, a valid Will must be:
- In writing (handwritten, typed, or printed)
- Signed by the testator at the end of the Will
- Signed or initialled by the testator on every page
- Signed by two competent witnesses aged 14 or older
- Witnessed by both witnesses who are present simultaneously
- Signed in the presence of the testator
Who Can Be a Witness to a Will in South Africa?
Any person aged 14 or older who is competent to give evidence in court can be a witness. Critical rule: a witness must not be a beneficiary of the Will. If a beneficiary signs as a witness, they forfeit their inheritance under that Will. The witness’s spouse or civil union partner is also disqualified from benefiting.

What Is an Affidavit of Execution?
An Affidavit of Execution is a sworn statement made by one of the witnesses confirming that the Will was properly signed and witnessed. The witness swears before a Commissioner of Oaths that:
- The testator signed the Will in the presence of both witnesses
- Both witnesses signed in each other’s presence and in the presence of the testator
- The testator appeared to be of sound mind and not under duress
Is an Affidavit of Execution Legally Required?
No. An Affidavit of Execution is not required for a Will to be valid in South Africa. However, it is highly recommended because it provides evidence that the signing requirements were met. Without it, the Master of the High Court may require additional proof of proper execution during the probate process, which can cause delays.

Common Signing Mistakes to Avoid
- Forgetting to sign or initial any page of the Will
- Having only one witness instead of two
- Having witnesses sign at different times or locations
- Allowing a beneficiary to serve as a witness
- Using witnesses under the age of 14
- Not having all parties sign in each other’s presence
Frequently Asked Questions
Can I sign my Will electronically in South Africa?
No. Currently, South African law requires a physical (wet ink) signature on a printed Will. Electronic signatures are not accepted for Wills.
Does my Will need to be notarised?
No. Wills do not need to be notarised in South Africa. Proper signing and witnessing is sufficient.
What happens if my Will is not properly signed?
An improperly signed Will may be declared invalid. The court can condone certain defects, but this requires a court application and causes significant delays and costs.