Please note
Belmadeng is an independent study platform and is not affiliated with the National Population Commission (NPC). This is an informational guide — register births or deaths and obtain certificates only through official NPC channels (nationalpopulation.gov.ng and its self-service portals). Timely birth registration is free, and you should use the verifiable digital certificate; beware touts and fake documents. Note: a sworn age declaration is made in a High Court, not by the NPC.
Three different documents
People often confuse these three, but they’re distinct — and they’re not equally accepted anymore.
Birth certificate
The NPC’s record of a birth that was registered at or near the time of birth — the standard document, obtained by registering a child’s birth.
Attestation of birth
The NPC document for people not registered at birth (mainly adults, and those born before the NPC era). See attestation of birth.
Age declaration
A sworn affidavit made in a High Court stating a person’s age — it is not issued by the NPC. On its own, an age declaration/affidavit is increasingly not accepted by major government offices, which now want a verifiable NPC document.
Which do you need?
- A child being registered → birth certificate.
- An adult with no birth record → attestation of birth.
- A court statement of age → age declaration (from the High Court), but pair it with an NPC document where possible.
Verifiable is what counts
What matters most today is a verifiable NPC record — agencies like NIMC and passport/visa offices verify the reference number against the NPC database. A document that can’t be verified may be rejected.
Tips
- Prefer a verifiable NPC birth certificate/attestation.
- Remember an age declaration is a court affidavit, not NPC.
- Keep your details consistent across documents.
The dividing line is age
The simplest way to understand the difference is age at the time of applying:
- Birth registration / birth certificate — for children aged 0–17, registered at or near the time of birth (ideally).
- Birth attestation — for adults aged 18 and above who were never registered as children.
Both are issued by the NPC and both serve as official proof of birth — they're just the route appropriate to your age now.
Do they carry the same weight?
For practical purposes, the attestation is the adult's recognised proof of birth where no childhood registration exists — it's what an 18+ applicant obtains when institutions ask for a birth document. The birth certificate remains the standard record for those registered as minors. Rather than one being “better,” the point is that each is the correct instrument for its age group: an adult can't obtain a fresh childhood birth certificate for themselves, and a child doesn't need an attestation. Always check what a specific institution requires, since some name one document explicitly.
Which one you need
Deciding is straightforward. Registering a child (under 18)? Use birth registration to get the birth certificate. Are you an adult (18+) without any birth certificate? Use attestation. If a young person is approaching 18 and still unregistered, it's worth acting before they cross the line so they use the simpler child route. And in all cases, keep the name and date of birth consistent with the person's NIN, since mismatches cause problems in exams and other processes later.
Frequently asked questions
What is the difference between a birth certificate and an attestation of birth?
A birth certificate records a birth registered at/near the time of birth; an attestation of birth is the NPC document for people not registered at birth (mainly adults).
What is an age declaration?
A sworn affidavit made in a High Court stating a person’s age — it is not issued by the NPC, and on its own is increasingly not accepted by major government offices.
Which birth document do I need?
A child being registered needs a birth certificate; an adult with no record needs an attestation; an age declaration is a court document best paired with a verifiable NPC document.
Is an affidavit enough as proof of birth?
Often not anymore — major offices now want a verifiable NPC birth certificate or attestation, not just an affidavit.
Who issues an age declaration?
A High Court (a sworn affidavit) — not the NPC.
What is the difference between a birth certificate and a birth attestation?
Age at the time of applying: birth registration/certificate is for children aged 0–17, while birth attestation is for adults 18 and above who were never registered as children. Both are issued by the NPC and both serve as official proof of birth — they're just the route appropriate to your age.
Which is for adults, certificate or attestation?
Attestation — it's the NPC's proof-of-birth document for adults 18 and above who have no birth certificate. The birth certificate is the standard record for those registered as minors (0–17).
Do a certificate and an attestation carry the same weight?
Each is the correct instrument for its age group — the attestation is the recognised adult proof of birth where no childhood registration exists, and the certificate is the record for those registered as minors. Always check what a specific institution requires, since some name one explicitly.
Which document do I need?
Registering a child under 18 — use birth registration for the birth certificate. An adult (18+) with no birth certificate — use attestation. If someone is approaching 18 and still unregistered, act before they cross the line so they use the simpler child route.
Can an adult get a normal birth certificate?
An adult who was never registered as a child obtains a birth attestation rather than a fresh childhood birth certificate — attestation is the 18-and-above route. Keep the name and date of birth consistent with your NIN to avoid problems later.