Originally published: 20 March 2015 | Last updated: 27 April 2025
Every change to a Last Will and Testament in South Africa must be witnessed to be legally valid. There are two methods for updating your Will: adding a codicil (a formal amendment) or creating an entirely new Will that revokes the previous version. The best approach depends on the nature and extent of the changes.

What Is a Codicil?
A codicil is a separate legal document that amends specific provisions of an existing Will without replacing the entire document. Like a Will, a codicil must be in writing, signed by the testator, and witnessed by two competent witnesses. Learn more about what a codicil is and when to use one.
When Should You Create a New Will Instead of a Codicil?
A new Will is recommended when:
- Multiple changes are needed (new executor, new beneficiaries, new asset allocation)
- The original Will has already been amended by one or more codicils
- Major life events have occurred (marriage, divorce, birth of children, significant asset changes)
- The existing Will is outdated or poorly drafted
A new Will should include a revocation clause that explicitly cancels all previous Wills and codicils.
Can You Cross Out Sections of an Existing Will?
No. Handwritten alterations, cross-outs, or additions to a signed Will are not valid in South Africa unless each change is signed by the testator and both witnesses. This is why creating a new Will or a properly executed codicil is always the better option.
How Do Online Will Services Make Updating Easier?
With LegalWills.co.za, updating your Will is straightforward:
- Log in to your account
- Make the necessary changes online
- Print the complete new Will
- Sign every page with two witnesses present
- Destroy all copies of the old Will
This approach eliminates the need for separate codicils and ensures your Will is always a single, clear, up-to-date document.
How Often Should You Update Your Will?
Review your Will every 1–2 years, and immediately after any major life event including marriage, divorce, birth of a child, death of a beneficiary, significant property changes, or relocation.
Frequently Asked Questions
Do I need witnesses every time I update my Will in South Africa?
Yes. Any change to a Will—whether a codicil or a new Will—must be signed and witnessed by two competent witnesses to be legally valid.
Can I update my Will without a lawyer?
Yes. Online services like LegalWills.co.za allow you to update your Will at any time without a lawyer.