You can change your mobile number in our Mobile Banking app or in Online Banking. Please note, we may send you SMS messages (for example, One Time Passcodes (OTPs) or Account alerts). We can only guarantee delivery to customers who are in the UK with a UK registered number (+44).
For Mobile:
- Tap ‘Menu’
- Choose ‘Settings’
- Tap on ‘My details’
- Follow the steps on the screen
For Online Banking:
- Log on to Online Banking
- Go to the ‘My details & settings’ tab.
- Click ‘Change personal details’ in the left-hand menu.
- Choose ‘Change contact details’
- Follow the steps on the screen
If you’re using Online Banking to update your number, you’ll need to update the mobile number for account alerts separately. To do this simply:
- log on to Online Banking
- click ‘Account services’
- Choose ‘Account alerts’ in the left-hand menu and update your number.
Sign up for Mobile and Online Banking
Not signed up? Here’s what you need to get online.
In our branches
You can also change your contact details by visiting one of our branches with your debit or credit card. You’ll also need proof of your ID with a signature such as a valid passport or full UK driving licence.
If you already live in the UK and are moving to another UK address, you can change your address online.
- Log on to Online Banking
- Go to the ‘My details & settings’ tab.
- Click ‘Change personal details’ in the left-hand menu.
- Choose ‘Change address’.
- Add your new address and click ‘Continue’.
- We’ll send an OTP to your registered mobile number.
- Enter your Security Number and OTP.
- Click ‘Confirm’ to change your address.
Please bear in mind that you cannot change your address online for certain products such as your mortgage and insurance.
You can also view your address in Mobile Banking with our digital assistant Sandi, available 24/7.
- Log on to Mobile Banking
- Click 'More’ then 'Help and contact us’.
- Choose ‘Chat with us’ and ask to view your address.
If you’d like more information on how to change your personal details, please visit our contact us page.
Sign up for Online Banking
Not signed up for Online Banking? Read our Online Banking page to learn how
Joint accounts
This change will only update your own address details. All other account holders may need to update their address separately. Until they notify us, all their correspondence including cards and statements, will be sent to their previous address.
In branch
You can also change your address by visiting your local branch with your debit or credit card. You’ll also need proof of your ID with a signature such as a valid passport or full UK driving licence.
You can change your email in Online Banking.
- Log on to Online Banking
- Go to the ‘My details & settings’ tab.
- Click ‘Change personal details’ in the left-hand menu.
- Choose ‘Change contact details’.
- Add your new email address and click ‘Continue’.
- We’ll send an OTP to your registered mobile number.
- Enter your Security Number and OTP.
- Click ‘Confirm’ to change your address.
If you’d like more information on how to change your personal details, please visit our contact us page.
Changing your account alerts
You’ll need to update the email address for account alerts separately. To do this, simply:
- Log on to Online Banking
- Click ‘Account Services’
- Choose ‘Account alerts’ in the left-hand menu and update your email address.
In our branches
You can also change your contact details by visiting your local branch. You’ll need to bring your account’s debit or credit card and proof of ID with a signature such as a passport or driving licence.
If you've changed your name, you'll need to visit a branch with some personal ID (PDF - 54 KB) and proof of account ownership. You’ll also need to provide relevant supporting documents to prove this. You can provide one of the following documents:
- Marriage or civil partnership certificate
- Decree absolute
- Enrolled Deed Poll or Scottish Registry
- Unenrolled deed poll plus 1 ID document in your new name (e.g. passport or driving licence)
- Statutory declaration
- Final court order document
- Adoption certificate
Your date of birth may be stored incorrectly on our records and we may need you to update it. We might let you know this when you’re applying for a new product, for example.
To update your date of birth, please visit a Santander branch. You'll need to provide proof of account ownership and have some personal ID (PDF - 54 KB) with you.
You can add additional credit cards for family members who live at the same address and are aged 18 or over. What’s more, you can add up to 3 additional cardholders for no extra fee. You can add additional cardholders by speaking to our digital assistant Sandi, available 24/7.
In Mobile Banking:
- log on to Mobile Banking
- click 'Help centre' from the shortcuts in the top of the screen
- choose ‘Chat with Sandi’
- ask to add an additional cardholder and follow the steps.
In Online Banking:
- log on to Online Banking
- click 'Help & Contact Us’
- choose 'Chat with us'
- ask to add additional cardholder and follow the steps.
If you’d like more support, please visit our contact us page.
If you’re moving to or from an overseas address we’ll need you to print off our form, fill it in and post it to us.
What you’ll need
- Our change of details form (PDF - 364 KB)
- A valid form of ID
- Proof of your change of address.
Click 'A valid form of ID' to see which ID documents we accept from lists 1 and 2. If you don't have the documents from these lists, we can accept the foreign equivalents of these documents:
- utility bill (including council tax)
- bank statements (including mortgage statement), or
- HMRC correspondence.
Please arrange translation of these documents before posting them to us.
Please post your change of details form with a copy of your ID and proof of address to:
Change of address abroad
Santander Banking
Operations,
Sunderland SR43 4FP
What else?
There may be things you need to know about your relationship with us changing if you’re moving out of the UK.
Take a look at our moving abroad page to learn more.
And if you need to change any other of your details, check out our contact us page to find out how.
We may have asked you to complete a Change of Details form (PDF - 364 KB) after opening a new account.
This is because, some details from your application do not match those we have for you as an existing customer. We need you to provide us with some details and ID, so that we can send you new Online, Mobile or Telephone Banking details.
If you have any, you’ll be able to use your existing details to see your new product, after you send the information we need.
We need you to:
1. Fill in and return a change of details form (PDF - 364 KB) to the address listed below.
2. Photocopy one item of ID from list 1 and one from list 2 (PDF - 321 KB), from the list of ID we can accept. Please provide clear black and white photocopies, and don’t send us originals.
3. When you send these to us, include a copy of the email you received, or write your account number and sort code on each document.
Please send us your completed change of details form and photocopied ID documents back to us at:
Santander Operations
Sunderland
SR43 4FP