Application for Change Mobile Number in Bank Account—Easy Formats & Tips
Published: 2 Jul 2025
Do you need to update the mobile number associated with your bank account? It’s easier than you think—and very important too.
Your mobile number is the key to receiving bank alerts, OTPs, and essential messages. Whether it’s for online banking, ATM withdrawals, or checking your balance, an up-to-date number keeps you in control.
Imagine this: You’re trying to pay online, but the OTP never arrives. Why? Because your old number is still linked to your account. Simple things like this can turn into big problems if your number isn’t up to date. This guide will show you exactly how to write an application to change your mobile number in a bank account, using simple formats and real examples that anyone can follow.
🟩 Why Do You Need to Update Your Mobile Number?
Your mobile number helps the bank stay connected with you. Here’s why you should keep it updated:
- To get OTPs and alerts: You need these for online payments and safety.
- For account security: Banks send messages if something unusual happens.
- To use mobile banking, most apps and online services require your current phone number.
💡 Tip:
Always link your number, not a friend’s or family member’s. It keeps your account safe and private.

🟨 How to Write an Application to Change Mobile Number in Bank Account
Writing this application is simple. Just follow a clear format and keep your words polite and short.
✍️ Format of the Application Letter
Here’s what to include:
- 🗓️ Date
- Write the date in the top-left corner.
- Example: 30th June 2025
- 🧑💼 Bank Manager’s Name and Branch
- Write the manager’s name (if known) and the bank branch name.
- Example:
- The Branch Manager
- HBL Bank, Khanewal Branch
- 📝 Subject Line
- Write a clear subject so the manager knows what your letter is about.
- Example:
- Subject: Request to Change Registered Mobile Number
- 📄 Body of the Application
- Keep it short and precise. Mention:
- Your name and account number
- Your old and new mobile number
- A polite request to update it
- Thank them for their help
- Keep it short and precise. Mention:
- ✍️ Signature and Details
- End with your signature, name, and contact details.
- Example:
- Yours sincerely,
- Ali Raza
- Account No: 123456789
- Mobile: 0300-X
Would you like me to write a complete sample application using this format next?
📝 Application for Change of Mobile Number in Bank Account (Personal Use)
If you’ve recently changed your phone number, it’s essential to update it with your bank to continue receiving OTPs, alerts, and security messages. This simple application helps you avoid missed transactions or login issues.
Date: 30th June 2025
To,
The Branch Manager
[Your Bank’s Name]
[Branch Name]
Subject: Request to Change Registered Mobile Number
Respected Sir/Madam,
I am a savings account holder in your branch. Please update the mobile number associated with my bank account.
Here are my details:
- Account Holder Name: [Your Name]
- Account Number: [Your Account Number]
- Old Mobile Number: [Your Old Number]
- New Mobile Number: [Your New Number]
Please update my contact number in your records. I will be thankful for your kind support.
Sincerely,
[Your Signature]
[Your Name]
[Your New Mobile Number]
You can customize this letter by adding your ID proof or any other document the bank may request. Ensure your signature matches the bank records, and always double-check the mobile numbers before submitting.
📝 Application for Change of Mobile Number in Bank Account (For Business or Corporate Use)
When a business changes its official contact number, updating it with the bank is crucial to receive timely alerts, OTPs, and transaction updates. A formal request ensures smooth communication and uninterrupted banking services.
Date: 30th June 2025
To,
The Branch Manager
[Bank Name]
[Branch Address]
Subject: Request for Updating Mobile Number Linked with Business Account
Respected Sir/Madam,
I am writing on behalf of [Your Company Name], holding a current account at your branch. Please update the registered mobile number associated with our business account, as the previous number is no longer in use.
Below are the necessary details for your reference:
Account Name: [Company Name]
Account Number: [Your Account Number]
Old Mobile Number: [Old Number]
New Mobile Number: [New Number]
Please process this update as soon as possible and confirm once the change is successful. If any additional documents or verification are required, kindly let us know.
We appreciate your assistance and prompt attention to this matter.
Sincerely,
[Authorized Signatory Name]
[Designation]
[Company Name]
[Contact Number]
[Official Stamp/Seal—if required]
You can personalize this letter with your company letterhead, authorized signature, and official seal. Always verify your account details and attach any required documents to expedite the processing.
🟪 Application by Email (Optional but Useful)
Sometimes, visiting the bank is not possible. In such cases, you can send your request by email. Many banks now accept mobile number update requests digitally, especially for personal accounts.
📧 When to Use Email Instead of a Written Letter
- If your bank allows online service requests
- If you’re out of town or unable to visit the branch
- For quick communication or follow-up
- When asked by the bank to email your request
Tip: Always use your registered email address while sending the application.
📝 How to Format the Email
- Subject Line: Clearly state your request
- Greeting: Use a respectful greeting like Dear Sir/Madam
- Body: Mention your name, account number, old and new mobile numbers, and the reason for the update
- Close: Thank them politely and include your contact details
📧 Application for Change of Mobile Number in Bank Account via Email
If you’re unable to visit the bank in person, sending an email is a quick and convenient way to request an update to your mobile number. It saves time and keeps your banking access smooth and secure.
Subject: Request for Change of Mobile Number in Bank Account
Respected Sir/Madam,
I hope this email finds you well. I am writing to request an update on the registered mobile number linked to my bank account.
- Account Holder Name: [Your Name]
- Account Number: [Your Account Number]
- Old Mobile Number: [Old Number]
- New Mobile Number: [New Number]
Kindly update your records with the new number. Please let me know if you require any additional information.
Thank you for your assistance.
Sincerely,
[Your Name]
[Your Registered Email]
[Your New Mobile Number]
Before sending, double-check your account details and use your registered email for a better response. You can also attach a scanned copy of your ID if the bank asks for verification.
🟫 Extra Tips for a Smooth Process
Updating your mobile number with the bank is essential, but doing it correctly can help avoid delays or rejections. A few simple steps can make the entire process faster and less stressful.
- ✅ Make sure your signature matches bank records
- If your signature doesn’t match, the bank may reject your request. Always sign the same way you did when opening your account.
- ✅ Carry your original ID for verification
- Please bring your CNIC or any other valid ID when visiting the bank. Some banks may ask for it before processing your request.
- ✅ Double-check your new number before submission
- Even a small mistake in your number can stop you from getting OTPs or alerts. Always double-check before handing over your application.
- ✅ Be polite and keep a copy of your letter
- A respectful tone goes a long way. Also, keep a photocopy or screenshot of your application for your records.
You can adjust these tips based on your bank’s process—some may need ID proof, while others may offer online updates. Always ask your bank about their latest procedure before visiting.
Conclusion:
Before you go, let’s quickly wrap things up. Changing your mobile number in your bank account is a straightforward process—you need to follow a few simple steps and stay organized.
🔁 Recap—Key Steps to Write the Application:
- 🧾 Start with your details – Write your name, account number, and branch name.
- 📱 Mention both numbers – Clearly state your old and new mobile numbers.
- 🙏 Make a polite request – Ask the bank to update your number in their records.
- 📎 Attach ID proof if required – Some banks may request verification documents.
- ✅ Close the letter properly – Thank the bank, sign the letter, and include your contact info.
💬 Encouraging Advice:
There’s nothing complicated here. Whether you’re writing by hand, sending an email, or applying on behalf of your business, maintain a polite tone and ensure your information is accurate. The bank staff is there to help.
💡 Final Tip:
Always use your personal and active mobile number for banking. It helps you stay in control of your account, receive timely alerts, and avoid service interruptions.
🟨 Frequently Asked Questions (FAQs)
Got questions? Here are some quick answers to help you through the process:
Some banks allow you to update your mobile number through internet banking or the bank’s mobile app. Check your bank’s official website or app for this option.
Yes, most banks still require a branch visit for mobile number updates, especially for first-time changes or security reasons. Call your branch to confirm.
No, updating your mobile number is usually free of charge. However, some banks may charge a small service fee—ask your branch in advance.
It usually takes 24 to 48 hours after submitting your request. In some banks, it may happen instantly or within the same day.
Most banks require a valid ID proof (such as a CNIC) and a signed application letter. Some individuals may also request a passport-size photo or proof of account.
If your bank has a different policy, don’t worry—ask at the branch or check their website for details. You can also adjust your application letter based on your bank’s specific requirements.