Union Bank customers can instantly find their Customer ID online using the official Re-KYC portal without logging into Internet Banking.
The process works on both mobile and desktop browsers including Chrome, Edge, Safari, and Firefox, and usually takes less than 2 minutes if your mobile number is linked with the bank account.
📌 Steps to Find Union Bank Customer ID
- Open the official Re-KYC portal: Union Bank Re-KYC Portal
- Click on “Re-KYC” under Quick Links or menu options
- Select any one option:
- Customer ID
- PAN Number
- Account Number
- Enter the CAPTCHA code and click Submit
- Verify the OTP received on your registered mobile number
- Your Union Bank Customer ID will appear on the screen instantly
💡 Tip: If the page is not loading properly on mobile, switch to Chrome browser or refresh the page once before entering your details.
📌 Quick Insight: This method does not require Internet Banking login credentials, debit card details, or branch visits.
⚠ Important: The OTP will only be sent to the mobile number registered with your Union Bank account. If your mobile number is outdated, the process may not work.
Check Below: If this method does not work, try Internet Banking or WhatsApp Banking method.
1. Find Customer ID via Union Bank Net Banking (No Login)
If you’ve opened a savings or current account with Union Bank of India and don’t remember your Customer ID, there’s a quick way to find it online, without logging into anything.
You only need your account number and registered mobile number. Here are the steps to follow –
Step 1 – Head to the Union Bank net banking
Go to www.unionbankonline.co.in on your browser (like Google Chrome or Firefox). This is the bank’s official internet banking portal, and on the homepage, look below the login area. You’ll find a link that says “Know Your User ID”. Tap on that.
Step 2 – Enter your account details
Type in your account number (savings/current only), the mobile number registered with your bank account and the Captcha code to verify.
Step 3 – Verify with OTP
Now, on your registered mobile number, you will receive a 6-digit one-time code from the bank. Enter it and tap on continue.
Note: If you are not receiving OTP, please visit your branch and update your mobile number with the bank.
Step 4 – View your Customer ID
Once verified, the screen will show your User ID and Organisation ID. Your User ID is your Customer ID. Write it down safely for future use.
2. Union Bank Monthly Statement (Via Email)
Union Bank also sends monthly e-statements to your email.
How to open and view:
- Open the email from Union Bank.
- Download the attached PDF statement.
- Enter the password format:
- First four UPPERCASE letters of your registered name + your birth date and month in
DDMM. - Example: Naman, DOB: 15/08/2000 → Password:
NAMA1508
- First four UPPERCASE letters of your registered name + your birth date and month in
- Inside the PDF, your Customer ID is printed in the header.
2. Union Bank WhatsApp Banking
- Send “Hi” to 9666606060 (Union Bank’s official WhatsApp number).
- Select your language and verify your number via OTP.
- Set a 4-digit MPIN.
- Go to Account Services → Account Statement.
- Choose the month and request a statement on WhatsApp directly.
- You will receive a PDF on WhatsApp.
- Open it using the same password format (name + DDMM).
- View your Customer ID in the header.
3. Find CIF via Union Mobile Banking App (Login Required)
This is another simple and good way to find your CIF ID. If you are already using the Vyom Mobile banking app by Union Bank, follow the steps –
- First, open the Union ease Mobile App and log in using a 4-digit MPIN or fingerprint.
- If you are a first-time user, register using your debit card details and Aadhaar number, or by visiting a branch to get a branch token.
- On the home screen of the app, simply tap on the “mPassbook” option under Account overview.
- Choose your Account and the month.
- Tap on Download Statement (PDF).
- Use the PDF password:
- First 4 letters of your bank-registered name in UPPERCASE.
- Followed by DDMM of your birthday.
- Example: Priya Singh, DOB 20/08/1998 → Password:
PRIY2008
- Open the PDF. Your Customer ID or CIF is printed at the top.
4. Where to Check Customer ID on Bank-Issued Documents
1. Check your documents
- Passbook (first page, below name)
- Welcome Letter (from account opening kit)
- Cheque Book (first or summary page)
- Credit Card Welcome Kit
- Debit card kit
- Congratulations notification via SMS or Email
2. Requested documents
- Physical Statements: If you have any, your Customer ID is usually printed at the top. If not, visit the branch and ask for a duplicate copy.
- KYC Documents: Usually available in digital and physical versions.
5. Get Your Customer ID in Emergency (No Docs or Linked phone number)
If your mobile number is not linked, and you’ve lost access to documents or login info, follow these recovery options:
1. No Registered Mobile + No Documents
- Visit your home branch directly.
- Take all your available documents, such as Aadhaar, PAN, Driving License, and Passport.
- Explain the situation and fill out an identity verification form.
- Once verified, bank staff will retrieve and share your Customer ID.
2. Temporary Email Option
- Email customercare@unionbankofindia.bank from a working registered email ID.
- Mention: Full name, DOB, last 3 transactions (if remembered), nearest branch, and old address.
- The bank may request scanned ID proof and reply after verification.
Tips to Avoid Losing Your Customer ID Again
- Save it in password managers or banking notebooks.
- Make a digital backup on the cloud (encrypted).
- Register for email and SMS banking alerts.
- Link Aadhaar and PAN for easier account verification.
Why Do You Need a Union Bank Customer ID?
Your Union Bank Customer ID is allocated to you just after you complete your KYC and open your account successfully. It is a unique 8–11-digit number assigned to every customer. It links all your Union Bank accounts (savings, current, loans, cards) under your KYC Profile.
You need your customer ID whenever you do –
- During registration for the Vyom mobile banking app
- When signing in to Internet Banking
- While contacting Customer Care
- For loan applications or updating KYC
- For viewing/downloading bank statements
- accessing the digital passbook app and other Union apps.
As of 2026, the Union Bank serves more than 15.3 crore customers all over the country. To manage such a massive network efficiently, they used digital banking and a customer ID for each user to access all products easily.
Frequently Asked Questions
Can I find my Union Bank Customer ID via SMS?
Currently, Union Bank does not offer Customer ID retrieval via SMS — only OTP-based methods or WhatsApp. But you can get only a Union Bank credit card-linked customer ID.
Is my login ID for the Vyom app the same as my Customer ID?
Yes, as per the official website, your user ID is your customer ID, and it is required for all internet banking processes in Union Bank.
Can Union Bank branch staff verbally tell my Customer ID without documents?
Usually no. Branches must verify identity with at least one document or registered mobile OTP. This rule exists to prevent misuse, especially in crowded public banking halls.
Why is Customer ID printed on older passbooks but missing in newer ones?
Many newer passbooks show limited details due to privacy norms. Branch staff can still reprint a detailed passbook page on request if you specifically ask for Customer ID printing.
What happens if my account becomes dormant — does my Customer ID stop working?
No. Your Customer ID never expires. Even if the account is dormant, the ID remains active in records and gets reused once the account is reactivated at the branch.
Is Customer ID required even for simple things like statement download?
Yes. Even for PDF statements, Vyom app access, or email statements, Union Bank systems validate your identity using Customer ID before allowing downloads or password-protected file access.
Why does Customer ID retrieval fail even when my account number is correct?
In branches, this usually happens when your mobile number is outdated or inactive. OTP systems depend fully on registered numbers, so even correct details won’t work without updating mobile records.
I have multiple Union Bank accounts. Will each account have a different Customer ID?
No. Union Bank issues one Customer ID per person, not per account. Savings, current, loans, and cards opened later all get linked to the same original Customer ID.
What is the safest way to store my Union Bank Customer ID long-term?
From branch experience, writing it in a private banking notebook or saving it in a password-protected notes app works best. Avoid email drafts or WhatsApp chats where leaks commonly happen.
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