Notary Public vs Commissioner for Oaths in Singapore

The titles sound similar because both professionals deal with formal documents and witnessed statements. Their jobs are not interchangeable, however. The most useful first question is not “Which one is more official?” It is “Where will this document be used?” That destination often determines the correct route.

A Commissioner for Oaths administers oaths and affirmations. In everyday terms, the commissioner confirms your identity, checks that you understand the document, and formally records your promise that the facts you state are true. Singapore Courts identifies affidavits and statutory declarations for use in Singapore as common examples.

A Notary Public performs notarial acts, often for documents that must travel across borders. A notary may witness an execution, certify a copy or issue a notarial certificate. Singapore requires notarised documents to follow the prescribed notarial process, and documents intended for overseas use may then need authentication or an apostille through the Singapore Academy of Law (SAL).

Think of a Commissioner for Oaths when an authority asks you to swear or affirm facts for a Singapore purpose. Examples include a statutory declaration requested by a local agency, an affidavit for a Singapore court proceeding, or another declaration that the recipient specifically says must be commissioned.

The commissioner is not there to write your evidence, decide whether your account is persuasive or give legal advice about what you should say. The document should normally be complete before the appointment, apart from the signature and any changes that must be made in the commissioner’s presence. If you need help drafting an affidavit or understanding its legal consequences, ask a lawyer before the commissioning appointment.

Court-based Commissioner for Oaths services are intended for documents used in court proceedings and operate by appointment. For non-court matters, Singapore Courts directs members of the public to commissioners outside the courts. This distinction matters: going to the court service counter with a private employment or administrative declaration may waste a trip.

Start with a Notary Public when the document will be presented outside Singapore and the overseas recipient asks for notarisation, a notarial certificate, authentication, legalisation or an apostille. Singapore Courts expressly notes that court commissioners are not authorised to sign documents for use in foreign countries.

The word “overseas” does not automatically tell you every step. A university, bank, immigration authority, foreign court or business registry may each have different rules. Some accept an apostille, some need a paper rather than electronic certificate, and some may require a translation or an additional embassy step. Ask the end-user for written requirements before paying for copies or certificates.

SAL appoints Singapore Notaries Public and authenticates notarial certificates, but SAL does not notarise documents for members of the public. You first contact a practising notary. The notary can tell you what originals, identity documents, corporate authorisations or witnesses are needed for the particular act.

Commissioning is the formal administration of an oath or affirmation for a statement such as an affidavit or statutory declaration. Notarisation is the notarial act and certificate performed by a Notary Public. An apostille is a certificate used to authenticate the origin of a public document for international use under the Apostille Convention framework.

An apostille does not confirm that every statement inside a document is accurate, and notarisation does not guarantee that the overseas recipient will accept the document for its intended transaction. These processes authenticate signatures, seals, capacity or origin in defined ways. Acceptance remains a question for the receiving party and the law or procedure it follows.

Singapore’s Ministry of Foreign Affairs identifies SAL as Singapore’s designated Competent Authority for legalisation and apostillation. SAL’s guidance also says that private documents generally need to be notarised first, while eligible Singapore Government-issued documents may follow a direct legalisation route.

Get the requirement from the organisation that will receive the document. A vague instruction such as “please certify this” is not enough. Ask whether it wants a certified true copy, a witnessed signature, an affidavit, a statutory declaration, a notarial certificate, an apostille, or a specific combination.

Tell the provider the destination country, the name of the receiving organisation, the type and number of documents, whether you have the originals, and your deadline. If anyone will sign for a company or another person, mention that too. Those details can change the documents and authorisations needed.

• Used only in Singapore and must be sworn or affirmed: ask a Commissioner for Oaths.
• Used overseas and requires notarisation or an apostille: ask a Notary Public.
• Unclear instruction from the recipient: obtain clarification in writing before booking.
• Need drafting or advice about legal effect: consult a lawyer, not only a witnessing service.

Do not sign in advance unless the professional specifically tells you to. Do not assume a photocopy is sufficient when the provider needs to compare it with an original. Do not choose solely by the closest address without confirming that the office handles your document type and preferred language. Finally, do not treat an appointment listing as a promise of walk-in availability; contact the office and obtain a quote.

NearbyNotary is a discovery tool, not a law firm, notary, commissioner or government service. Directory information can help you make a shortlist, but the selected professional and the end-user must confirm the correct process for your facts. Spending two minutes on that confirmation is usually cheaper than repeating an entire cross-border document chain.