
How to Verify NIN and Update Email on the NCS Portal: Are you preparing for the Nigeria Customs CBT exams? This article will provide you with information on how to verify your NIN to Update Your Email on the Nigeria Customs Portal for NCS CBT exams.

Preparing for the Nigeria Customs Service (NCS) Computer-Based Test (CBT) requires accurate applicant details. One of the most common issues candidates face is the inability to log in due to an incorrect or outdated email address. To fix this, the Nigeria Customs Portal allows applicants to verify their National Identification Number (NIN) and use it to update their email records.
In this guide, we will walk you step by step through the process of verifying your NIN, updating your email address, and ensuring your details are correct for the upcoming NCS CBT test.
Why NIN Verification Is Important for the NCS CBT Test
The National Identification Number (NIN) serves as a unique identifier for every Nigerian. Since the NCS recruitment portal integrates NIN data with applicant records, verifying your NIN helps:
- Correctly link your application details.
- Update your email address for seamless communication.
- Prevent disqualification due to mismatched records.
- Ensure you receive CBT test invitations and updates.
Without proper NIN verification, you risk missing important notifications from the Nigeria Customs Service.
Step-by-Step Guide: How to Verify NIN and Update Email on the NCS Portal
Follow the instructions below carefully:
Visit the NCS Recruitment Portal: Go to the official Nigeria Customs recruitment portal or the dedicated CBT portal link shared during the recruitment exercise.
Log in with Your Application Details:
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- Enter your application ID or registered email (if still accessible).
- If you cannot log in because of a wrong email, proceed directly to the NIN verification option.
Select “Verify NIN / Update Email”:
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- On the login page, look for the option to verify your NIN.
- Click on it to open the verification form.
Enter Your NIN:
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- Type in your 11-digit NIN exactly as shown on your National ID slip.
- Double-check for errors before submitting.
Complete Verification:
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- The system will cross-check your details with the National Identity Management Commission (NIMC) database.
- Once verified, your record will be linked automatically.
Update Your Email Address:
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- After verification, you will be allowed to input a valid and active email address.
- Use a Gmail, Yahoo, or Outlook email that you check regularly.
Confirm and Save Changes:
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- Submit the updated information.
- Check your email inbox (and spam folder) for a confirmation message from NCS.
Common Errors and How to Fix Them
Error Message | Possible Cause | Solution |
“NIN not found” | Wrong NIN entry or unlinked NIN | Confirm digits or visit NIMC office to validate your NIN. |
“Email already in use” | Another applicant used the same email | Create a new email and update with that. |
“Verification failed” | Network or server downtime | Retry later during off-peak hours. |
Frequently Asked Questions (FAQs)
Can I update my phone number instead of my email on the portal?
No. The portal currently allows only email updates through NIN verification. Your phone number remains as registered.
What if I don’t have a NIN yet?
You must visit any NIMC enrollment center to register and obtain your NIN before proceeding. Without it, you cannot update your email.
How long does it take for the update to reflect?
Usually, it is instant. However, in some cases, it may take 24–48 hours for the update to sync.
Will I be disqualified if I don’t update my email?
Yes. Since communication (CBT test date, venue, and instructions) is sent via email, not updating it could cause you to miss out.
Can I use someone else’s email?
It is strongly discouraged. Always use your personal email address to avoid missing official notifications.
See Also:
- Nigeria Customs Service CBT Exams Date
- Nigeria Customs Service Shortlisted Candidate
- Nigerian Army DSSC/SSC Application Form
- Nigerian Army 90RRI Recruitment
Final Words
Verifying your NIN and updating your email on the Nigeria Customs Service portal is an essential step before the NCS CBT test. It ensures you receive exam notifications, prevents login errors, and keeps your profile aligned with official records.
Act early, double-check your details, and keep your NIN slip safe for future verification needs. By following the steps outlined in this guide, you will be fully prepared for the NCS CBT test without unnecessary stress.
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