Picture this: you've scanned your degree certificate, uploaded it to a university portal, and a week later you get an email saying the document "is not acceptable" because it isn't certified. You paid for a notary stamp you didn't need, or you skipped one you did. Both mistakes cost time, and in a tight application window time is the thing you can't buy back.
This guide explains the three words people use interchangeably but shouldn't (certified copy, notarisation, apostille), how to work out which one a school or employer actually wants, and how to prepare your Nigerian documents so you only pay for what's required. It is general information. The authority for any specific application is the instruction page of the school, employer or immigration office you're dealing with.
Three terms that get mixed up
| Term | What it usually means | Who does it |
|---|---|---|
| Certified true copy | A copy that an authorised person has checked against the original and marked as a true copy | Depends on the receiver: the issuing institution, a lawyer, a commissioner for oaths, or another listed professional |
| Notarisation | A notary public witnesses a signature or confirms a copy, and adds a seal | A notary public (in Nigeria, a lawyer appointed as notary) |
| Apostille or legalisation | An extra step that confirms the official's signature or seal is genuine, so another country will trust it | A designated government office, which differs by country |
Notice that none of these proves your degree is real by itself. They confirm that a copy matches an original, or that a signature is genuine. The school or verifier still decides whether the underlying document is authentic, often by contacting your university directly.
Step one: find out exactly what the receiver wants
Don't rely on a friend's experience or an agent's checklist. Requirements differ between schools, between programmes in the same school, and between employers. Look for a page titled something like "supporting documents", "international applicants" or "document requirements".
Write down the exact wording for each document. You are looking for answers to these questions:
- Do they accept an uploaded scan, or a scan of a certified copy, or only a posted original?
- Must the certifier be a specific type of person (for example, a lawyer, a notary, or an official of your university)?
- Must the certification be in English, or must the document be translated? (Most Nigerian documents are already in English, so this usually doesn't apply to you.)
- Do they want documents sent directly from your university instead of through you?
- Is there a deadline for original or certified documents that is later than the application deadline? Some schools accept uploads first and ask for certified versions only after an offer.
If the instructions are unclear, email the admissions or HR contact and ask one precise question. Keep the reply. If something goes wrong later, a written answer protects you.
Step two: know which documents usually need this
These are the documents most often questioned for Nigerian applicants:
- Degree certificate or HND/ND certificate. Many receivers want a scan of the original. Some want a certified copy.
- NYSC discharge or exemption certificate. Employers and some schools ask for it as proof you completed national service. Keep the original safe and make good scans before it gets creased or damaged.
- Transcripts. These are usually expected to come sealed or sent directly from your university. A copy you certified yourself often doesn't count. See our guide on how to request your Nigerian university transcript for abroad.
- WAEC or NECO results. Often verified online through the examining body rather than by a stamped copy.
- Birth certificate or age declaration. Needed for some applications, especially for younger students.
- Passport data page. Some bodies want it certified, others just a clear colour scan.
For credential assessments such as the Canadian ECA, the assessing body sets its own rules for how documents reach them. Read our Canada study permit planning guide for how that fits into a wider plan, and check the assessor's own page before sending anything.
Step three: get the right person to certify
Once you know who can certify, take the following to the appointment:
- The original document, not a photocopy of a photocopy.
- Clean copies, printed or photocopied at full size, with nothing cut off at the edges.
- Your valid ID (international passport is safest).
- Any wording the receiver asked for, such as "certified true copy of the original seen by me", plus the certifier's name, position, date and contact details.
The certifier should see the original and compare it with the copy in front of you. If someone offers to stamp a copy without seeing the original, walk away. That isn't a shortcut, it's a problem waiting to surface when the document is checked. Never alter, "improve" or re-create a damaged certificate. If an original is lost, the correct route is to ask the issuing institution for a replacement or a confirmation letter.
Step four: when you may also need an apostille or legalisation
Some countries or institutions want proof that the notary's or official's signature is genuine, especially for documents that will be used formally, such as for a work permit file, professional registration, or an official translation. This extra step is done by a government authority, and the process and name of the office differ by country.
Don't assume you need it. For most university applications, an upload plus later verification is enough. Only do it when the receiver's instructions name it, and ask them whether the apostille should come before or after any translation. Doing it in the wrong order can mean repeating it.
A worked example (hypothetical)
Say Amaka, a Lagos graduate, applies for a master's programme abroad. The school's page says: "Upload a scan of your degree certificate. Original or certified copies will be requested only if you accept an offer." Amaka reads this and uploads a clean colour scan of the original. She spends nothing on certification yet.
Six weeks later she gets an offer. The offer letter now says: "Send certified copies of your degree certificate and NYSC certificate, certified by a lawyer, notary or your university registry." Amaka books a lawyer in Ikeja, brings her originals and ID, and gets two sets of certified copies. If she had certified everything on day one, she'd have paid for documents that might never have been needed if she'd been rejected or chosen a different school.
The lesson: pay for certification when the instruction tells you to, not before. Prepare in advance, but spend later.
Common mistakes and how to avoid them
- Certifying a copy of a copy. The certifier must see the original.
- Name differences between documents. If your certificate says "Chukwuemeka" and your passport says "Emeka", a certified copy won't fix that. Sort out the mismatch first; our guide on fixing a name mismatch across passport, NIN and degree shows how.
- Paying an agent to "arrange" stamps. You can do this yourself. If an agent insists on handling your originals or certifications privately, treat it as a warning sign.
- Using a stamp with no details. A seal without the certifier's name, date and position is easy to reject.
- Posting your only original. Unless the receiver explicitly demands it, send certified copies and keep the original.
- Waiting until the final week. Lawyers' offices, courts and registries can be slow, and power or network problems in Nigeria are not accepted as reasons for missing a deadline.
- Forging or editing anything. A fake or altered document can lead to refusal and a record that follows later applications. Never do it, and never let anyone do it for you.
A simple document prep checklist
- Collect all originals in one folder: certificates, NYSC certificate, passport, birth record.
- Scan each at a clear resolution, colour, all four edges visible, saved as PDF with a plain file name.
- Check names and dates match across every document.
- Request transcripts early, since your university controls that timeline.
- Read the receiver's certification rules; note them next to each document.
- Only when asked, certify, notarise or apostille, and keep a scan of the final stamped version.
- Store backups in two places, such as cloud storage and a flash drive, so a power cut or lost phone doesn't wipe your file.
Frequently asked questions
Is a notary the same as a commissioner for oaths?
No. They are different roles with different powers. Which one a receiver accepts depends on their instructions, so read them carefully rather than choosing the cheaper option.
Can my university certify my copies?
Some receivers specifically accept certification by the issuing institution, and some Nigerian universities offer this through the registry. Ask your registry whether they do it and how long it takes.
Do I need to certify my study permit or visa documents?
Follow the checklist on the official immigration site. For example, the Canadian government's study permit page says you should make sure you have all the documents you need before you apply, and apply before you travel. It lists the fee as CAN$150 and says processing times vary by country, so check that page and the document checklist for your situation rather than relying on third parties.
Will a certified copy be accepted forever?
Not necessarily. Some receivers want certification done within a recent period. Check for any date limits in their instructions.
What if a school rejects my certified copy?
Ask them in writing what was wrong: who certified it, missing details, or an unclear scan. Fix that specific thing and resubmit before the deadline.
Your next step
Pick the one school or employer you're applying to first, open its document requirements page today, and write the certification rule next to each document on your list. That single page of notes will tell you what to pay for and what to leave alone.
Sources
Details checked against the official sources above on 10 November 2026. Things change, so confirm on the official site before you act.
This is general information, not immigration or legal advice. Rules change often, so confirm on the official government website or with a licensed adviser, and avoid agents who promise guaranteed visas.