What commissioner for oaths means
A commissioner for oaths is authorised to receive your sworn statement.
Their function is narrow and specific. They administer the oath or take the declaration, confirm that you appeared before them, and sign and stamp the document with the date. That is what turns a piece of paper into an affidavit or a statutory declaration.
The authority comes from the Oaths Act, and commissioners are attached to court registries. Their signature does not verify that what you wrote is true. It verifies that you swore or declared it in their presence, and it is that act which exposes you to criminal liability if the contents are false.
Magistrates and notaries public can also administer oaths, and in Nigerian daily practice the commissioner at the High Court registry is the one most people use.
How it is used
You go to a commissioner whenever an institution asks for something sworn.
An affidavit in support of a court application. A statutory declaration of age. A declaration confirming a change of name. A declaration that two differently spelled names refer to the same person. A declaration of loss of a document. An affidavit of ownership. Verification for school, bank or immigration purposes.
The process is short. Draft the statement in numbered paragraphs, confined to facts within your own knowledge. Attend the registry with valid identification. Sign in the commissioner's presence after taking the oath or making the declaration. Pay the prescribed fee and collect the stamped copies.
Take more copies than you think you need and have each one stamped, because institutions frequently want an original rather than a photocopy, and returning for more is a wasted morning.
Key features
- Administers oaths and takes affidavits and declarations under the Oaths Act
- Attached to High Court registries and some other courts
- Confirms that you swore or declared, not that the contents are true
- Charges a modest prescribed fee
- Requires the deponent to appear in person with identification
- Cannot draft your statement for you or advise on its contents
How this works in Nigeria
The everyday reality is that this is one of the most used legal services in the country, and one of the least understood.
Commissioners sit at High Court registries in every state and the process is designed to be quick. Fees are prescribed and modest, and a person being asked for a large sum should ask what the official fee is.
A point that matters and is routinely ignored: the deponent must appear personally. Sending a relative with a signed document is not how it works, and a document sworn without the deponent appearing is defective.
Institutions also increasingly want recent documents. A declaration sworn several years ago is often rejected in favour of a fresh one, which is inconvenient but worth knowing before you travel.
For documents going abroad, a commissioner is usually not enough. Foreign institutions typically want a notary public, whose seal carries international recognition, and often a further layer of authentication or legalisation after that. Ask the receiving institution what they require before paying for anything.
Commissioner for oaths vs notary public vs witness
Three people who put their name on your document, doing three different jobs.
A commissioner for oaths administers oaths and takes affidavits and declarations. They are attached to a court registry, the fee is small, and the document is for use in Nigeria.
A notary public authenticates documents, certifies copies and attests execution, and their seal is recognised internationally. In Nigeria notaries are appointed by the Chief Justice of Nigeria, and they are who you need for a document going abroad.
A witness simply confirms they saw you sign. No qualification is required, and their role is purely evidential.
So an affidavit for a Nigerian court needs a commissioner. A power of attorney being sent to another country usually needs a notary. An ordinary contract needs only a witness. Asking the receiving institution which they want saves a wasted trip.
Limits and risks
A commissioner does not check your facts. Their stamp says you swore, not that you were right, and an affidavit full of untrue statements is still an affidavit until it is challenged.
They also cannot help you draft. Commissioners are not there to advise on what should be in the document, and a badly drafted affidavit that omits what the institution needs will simply be rejected.
Their authority is domestic. A commissioner's stamp carries no automatic recognition abroad, so documents for foreign use usually need a notary and often further authentication.
And an affidavit is not evidence of everything it asserts. A court weighs it, and a contested affidavit can be met with a counter affidavit and cross examination.
Worth knowing
Appear in person and take extra stamped copies. Nigerians routinely send somebody else with a signed document, which produces a defective affidavit, or swear a single copy and then spend another morning at the registry when the bank keeps the original.
Questions people ask
What does a commissioner for oaths do?
Administers oaths and takes affidavits and statutory declarations under the Oaths Act, confirming that you swore or declared the contents in their presence. They do not verify that the contents are true.
Where do I find a commissioner for oaths in Nigeria?
At High Court registries in every state, and at some other courts. The process is short and the fees are prescribed and modest.
Can somebody else swear an affidavit on my behalf?
No. The deponent must appear personally before the commissioner with identification. A document sworn without the deponent appearing is defective.
What is the difference between a commissioner for oaths and a notary public?
A commissioner administers oaths for documents used in Nigeria. A notary public authenticates documents for international use, and is appointed by the Chief Justice of Nigeria. Foreign institutions usually require a notary.
How much does it cost?
The fee is prescribed and modest. If a large sum is being requested, ask what the official fee is, because the prescribed amount is small.
Can a commissioner draft my affidavit?
No. Their role is to administer the oath, not to advise on content. Draft it in numbered paragraphs confined to facts within your own knowledge, or have a lawyer prepare it.