Quick answer
You need a notary when the required legal act is not merely proving that a copy matches an original. A notarial deed is an instrument attested by a notary and used where the transaction or law requires notarial form. Normal certification usually addresses a narrower fact: a commissioner of oaths compares a copy with the original and certifies that it is a true copy.
How to use this guide
Do not choose the service from words such as “stamp”, “certify” or “notarise” alone. First identify the intended legal effect and the receiving body's exact instruction. A notarial deed, authentication of a signature, certification of a copy and an apostille are different work products.
Use the intended result as the starting point
Write down what the document must achieve. The answer usually falls into one of four lanes:
| Intended result | Likely work product to investigate | What it does not decide |
|---|---|---|
| Create, record or attest a transaction in notarial form | Notarial deed | Whether a foreign authority will accept it |
| Prove that a person signed or appeared | Signature witnessing or authentication | Whether the underlying statements are true |
| Show that a copy matches an original | Certified copy | Whether notarial form or legalisation is required |
| Present a South African document abroad | Document-specific apostille or authentication route | Whether the deed itself was the correct domestic instrument |
These lanes can occur in sequence, but one is not a substitute for another. A certified copy cannot create a right that requires a notarial instrument. A notarial act does not automatically complete an overseas legalisation chain.
When a notarial deed may be the correct lane
The Deeds Registries Act defines a notarial deed as a deed attested by a notary public, while excluding a document on which the signature is merely authenticated or a copy merely certified. That distinction matters: the notary is acting in relation to the instrument, not simply adding a stronger-looking copy stamp.
Examples of matters that may involve a notarial deed include an antenuptial contract and certain leases, servitudes, bonds or other registrable instruments. The exact instrument and registration consequence depend on the facts and applicable law. Not every agreement becomes better because it is notarised, and not every notarial act produces a registrable deed.
If a notarial deed has already been identified, move to the notarial-deed document matrix to organise the parties, authority, property or asset particulars and prior instruments.
When normal copy certification may be enough
Normal certification is commonly requested when an organisation wants evidence that a photocopy or scan corresponds with an original. South Africa's Department of Justice explains that a commissioner of oaths can certify a copy after comparing it with the original.
This does not turn the copy into a notarial deed. It also does not prove that the original's statements are correct, that the signer had authority, or that a foreign recipient must accept the copy. Ask the recipient:
- which exact document it wants;
- whether it needs the original or a certified copy;
- who may certify it;
- whether there is an issue-date or age condition; and
- whether any later verification or legalisation is required.
If the instruction says only “certified copy”, do not assume that paying for a notarial deed satisfies the instruction. The recipient owns the acceptance decision.
Signature authentication is a separate question
Sometimes the required fact is that a named person signed a document or appeared before an authorised person. That is not the same as a notarial deed, and it is not the same as confirming that a copy matches an original.
Ask which signature is being verified, in what capacity the person signs, whether personal attendance is required, and what certificate wording the recipient expects. Where the signer represents a company, trust, estate or another person, the authority evidence must also be checked. A witnessed signature cannot cure missing representative authority.
Foreign use adds a second classification
If the document will be used outside South Africa, first classify the domestic work product and then confirm the foreign route. An apostille or authentication generally addresses the origin of a public signature, seal or capacity. It does not validate the underlying transaction or guarantee acceptance.
The destination, document origin, document type and current Apostille Convention relationship can all affect the route. Use the apostille-versus-authentication guide for that separate decision. This article stops at identifying whether the domestic task is a deed, signature act or copy certification.
A practical decision record
Before booking, create a short service-choice record:
- Name the document and its country of origin.
- Quote the receiving body's instruction word for word.
- State the intended legal effect.
- Record whether an original, copy or signature is being examined.
- Identify any transaction-specific law or registry requirement.
- Mark foreign use as a separate route-selection question.
- Record who confirmed the final work product and when.
Do not replace an unclear instruction with your own interpretation. Send the recipient a precise question, such as: “Do you require a certified copy of this existing document, a signature authenticated before a notary, or a notarial deed creating the instrument?”
Verify the practitioner and scope
The Legal Practice Act regulates admission and enrolment, and the Legal Practice Council maintains the professional enrolment process for notaries. Confirm who will take responsibility for the notarial work and what they have been asked to deliver.
Then use the questions to ask before booking to confirm attendance, drafting, registration, originals, corrections, fees and disbursements. The notarial services directory can help you identify a provider, but the engagement still needs a written scope.
Stop before proceeding if the label and result conflict
Pause when a requester uses several labels interchangeably, asks for a “notary stamp” without naming the accepted certificate, or expects certification to create a legal right. Also pause if the document originated abroad but is being treated as a South African record, or if the recipient will not confirm whether it accepts a copy.
The safest classification is the one tied to the required legal effect and written acceptance requirement—not the most elaborate or expensive stamp.
FAQs
Is a certified copy the same as a notarial deed?
No. Copy certification records that a copy was compared with an original. A notarial deed is an instrument attested by a notary and may be required for a particular legal effect or registration process.
Does a notary make any document valid overseas?
No. Foreign use is a separate, document-specific question. The destination, origin, receiving authority and current apostille or authentication route must still be confirmed.
What should I ask when the instruction only says notarised?
Ask whether the recipient needs a notarial deed, an authenticated signature, a certified copy, or a document prepared for a later apostille or authentication step. Get the answer in writing.
Can a certified signature prove that someone had authority to sign for a company or trust?
Not by itself. The representative's appointment and the scope of their authority need separate supporting records and review.
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Legal note
This article is general legal information for South African readers. It is not legal advice. Speak to a qualified legal professional about your specific facts before taking action.