Logging into online banking can come to a sudden halt if you cannot remember your user identification number. Because this number is separate from your standard bank account number or sort code, it is easy to misplace—especially if you rely on biometric login features on your phone and rarely type it out manually.
Your Bank of Ireland 365 User ID is a unique numerical code assigned to your digital profile when you first register for online banking. You will usually need this number every time you log into desktop banking or re-register the mobile app on a new device. Knowing where to look for it can save you from unnecessary login lockouts.
Key Information
| Category | Details |
|---|---|
| Methods | Mobile banking app profile menu, SMS recovery tool, or telephone support |
| Processing Time | Immediate via app or automated SMS; 5 to 10 minutes when verifying identity by phone |
| Eligibility | Registered Bank of Ireland UK 365 online banking customers |
| Key Requirements | Registered UK mobile number, date of birth, and account sort code or debit card details |
Step-by-Step Guide to Finding Your User ID
- Check your active mobile banking application: If you are already logged into the Bank of Ireland mobile app on your primary device, tap the profile or settings icon on the home screen to view your registered User ID.
- Use the online recovery tool: On the 365 desktop login page, select the option for a forgotten User ID to open the automated retrieval form.
- Enter your personal identification details: Type in your registered date of birth, your email address, and your UK mobile phone number exactly as they appear on your bank statements.
- Submit the SMS request: Confirm your details to trigger an automated text message from the bank containing your numerical User ID.
- Check your phone messages: Look for an SMS from Bank of Ireland; the message will display your login number but will never ask you to click a link or provide your password.
- Log in and store the number securely: Return to the 365 online login screen and enter your recovered User ID alongside your standard security credentials.
Troubleshooting Common Login and Recovery Issues
- SMS Recovery Code Not Arriving
Cause: Poor cellular reception or attempting recovery using a new phone number that has not yet been registered with the bank.
Simple Fix: Check your phone signal and ensure you are entering the mobile number currently linked to your banking profile.
Fallback Action: Call the digital support team to update your contact number verbally after passing security checks. - Browser Page Freezing on the Desktop Portal
Cause: Stale cookie data or strict ad-blocking extensions interfering with the login security script.
Simple Fix: Clear your web browser's cache and cookies, or open a private browsing window before entering your User ID.
Fallback Action: Switch to the mobile banking app to complete your transaction while you resolve browser issues. - Account Locked After Multiple Failed Attempts
Cause: Entering an incorrect User ID or security PIN three consecutive times, which triggers an automated security hold.
Simple Fix: Wait 15 minutes before trying again if you only mistyped a character, as some temporary blocks reset automatically.
Fallback Action: Phone the 365 online helpdesk with your debit card and account details to request a manual account unlock.
Pro-Tip: Write your User ID down on a physical piece of paper and keep it at home with your formal bank statements. Because your User ID is purely an identification number—and cannot be used to move money without your PIN and mobile two-factor authentication—storing it offline is a practical way to prevent login lockouts when setting up a new phone.
Frequently Asked Questions
Why is my User ID different from my bank account number?
Many customers try to log into online banking using the eight-digit account number printed on their debit card, only to see an error message. Your User ID is a dedicated digital profile number that connects all of your individual accounts—such as your current account, savings account, and mortgage—under a single login. What this means in practice is that even if you open a new account or replace a lost debit card, your online banking User ID remains exactly the same. If your login fails, check that you are entering your specific 365 online User ID rather than your standard bank account number or sort code.
Can I recover my User ID if I no longer have access to my registered mobile phone?
Losing your phone or changing your mobile network without updating your banking profile can prevent you from using the automated SMS recovery tool. UK banking security standards require institutions to verify that a recovery request comes from the genuine account holder before sending login details. Because the automated web tool only sends text messages to verified numbers, it cannot divert your User ID to a new mobile device. In this situation, call the Bank of Ireland UK telephone support team directly so an advisor can verify your identity using secondary security questions and read your User ID to you over the phone.
Will my User ID change if I switch to a new mobile device?
Upgrading your smartphone or tablet does not alter your underlying online banking credentials. Your User ID is permanently tied to your customer profile rather than to the physical hardware you use to access the app. However, when you download the mobile banking app onto a new device for the first time, you will need to enter your full User ID and pass automated two-factor authentication to register the handset. Before wiping or trading in your old phone, open the banking app while you still have access to note down your User ID from the settings menu.
