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The short answer
For a Canadian passport, your proof of citizenship is the Canadian citizenship certificate (or another Canadian citizenship document), not any Nigerian paper; IRCC accepts a copy only if the certificate was issued on or after 1 February 2012 or its number begins with -K or -X. Nigerian documents matter only at the edges: a Nigerian passport can help support identity, and a Nigerian marriage certificate or name-change record may explain a name that differs between documents.
Nigerians who become Canadian often expect the passport application to ask for their Nigerian birth certificate, NIN slip or Nigerian passport. It mostly does not. The application is built around the Canadian citizenship document, which already reflects everything IRCC checked when you were granted citizenship. This article sets out what IRCC asks for, where Nigerian papers come in, and the slips that delay applications.
Proof of citizenship: the key document
IRCC's page on proof of citizenship for adult passport applications (modified July 2025) lists these for people born outside Canada:
- Canadian citizenship certificate;
- certificate of naturalization;
- certificate of registration of birth abroad;
- certificate of retention of Canadian citizenship.
For a citizenship certificate, the original is required if it was issued on or before 31 January 2012. A copy is accepted if it was issued on or after 1 February 2012, or if the certificate number begins with -K or -X. Otherwise photocopies are not accepted, even if signed. If you mail the original, IRCC returns it in a separate envelope once verified, which can take up to six weeks; in person it is returned at once. A certificate laminated by you, rather than by the issuing agency, is not accepted.
Identity, guarantor and references
The required-documents page (modified October 2025) asks for a document to support your identity, which can be a photocopy or the original, plus any valid Canadian travel document you hold. It also sets the rules for the people who sign for you:
- Guarantor
- 18 or over, a Canadian citizen, has known you personally for at least two years, holds a five- or ten-year Canadian passport that is valid or expired less than a year, was 16 or over when applying for it, and can communicate in English or French.
- References
- Two people aged 18 or over who have known you for at least two years; not your guarantor, immediate family, spouse or partner, or relatives living at your address.
- Photos
- Two identical passport photos; the photographer's details and date on the back of one, which your guarantor signs.
The page links to a separate list of acceptable identity documents. Most applicants use a Canadian provincial driver's licence or photo card. Whether a foreign passport is accepted as the supporting identity document is set on that list; check it rather than assuming your Nigerian passport will do.
Where Nigerian documents come in
| Nigerian document | Needed? | When it matters |
|---|---|---|
| Nigerian birth certificate | No | Not a Canadian citizenship document |
| Nigerian passport | Sometimes useful | As supporting ID only if on IRCC's identity list; for your travel history |
| Nigerian marriage certificate | Only if your name changed | Explains a married name that differs from the certificate |
| Nigerian affidavit or gazette of name change | Only if your name changed | Supports a change not shown on Canadian documents |
| NIN slip | No | Not relevant to a Canadian passport |
On names, IRCC says your proof of citizenship can show either your new name or your previous name, and no new proof is needed for a change through adoption, a court decision or a legal name change. If you married in Nigeria after your citizenship grant and want the passport in your married name, keep the Nigerian marriage certificate ready; if it is not in English, a certified translation will be needed. See whether a Nigerian marriage certificate is valid in Canada.
Steps
- Find your citizenship certificate and check the issue date and number prefix to see whether a copy is enough.
- Choose a guarantor and two references who meet IRCC's rules.
- Get two identical photos from a photographer who stamps the back with name, address and date.
- Pick a supporting identity document from IRCC's list; a provincial licence is the usual choice.
- Complete the form, check fees and processing times on IRCC's passport pages on the day you apply, and submit.
- If you mailed an original certificate, allow up to six weeks for its return.
Mistakes that slow applications
- Sending a photocopy of a certificate issued before 1 February 2012, which IRCC will not accept.
- Choosing a guarantor who has known you for less than two years, or whose passport expired more than a year ago.
- Using a relative who lives with you as a reference.
- Laminating your citizenship certificate yourself to protect it, which makes it unacceptable.
- Mixing name versions, for example a Yoruba or Igbo middle name on one document and not another, without a document that explains the difference.
Travelling to Nigeria on a Canadian passport
Once you hold a Canadian passport, the next question is how to enter Nigeria. Our guides to the Nigerian visa for Canadians of Nigerian origin and keeping Nigerian citizenship after naturalising cover both sides.
Where Pryme fits
A name change after marriage often has to be carried across bank records in both countries. Pryme accounts can be opened from Canada and hold naira alongside other currencies in one multicurrency account; keep your Canadian passport and Nigerian records consistent so identity checks match.
Questions people ask
Do I need my Nigerian birth certificate for a Canadian passport?
No. If you were born outside Canada, your proof of citizenship is a Canadian document such as the citizenship certificate.
Can I send a photocopy of my citizenship certificate?
Only if it was issued on or after 1 February 2012 or its number begins with -K or -X. Older certificates must be sent as originals.
Can my Nigerian passport be my ID document?
Check IRCC's list of acceptable identity documents. Most applicants use a provincial driver's licence or photo card.
My guarantor is Nigerian, not Canadian. Can they sign?
No. IRCC requires the guarantor to be a Canadian citizen holding an eligible Canadian passport.
Sources
- IRCC: How to show proof of Canadian citizenship for adult passport applications · accessed Oct 2026
- IRCC: What you need to apply for a new adult passport in Canada · accessed Oct 2026
This article is general information, not financial, legal or tax advice. Products described are provided under the terms on this site and are subject to regulation and eligibility.