Online Banking FAQs

A Temporary Security Number is a code we use as an additional security measure to confirm your identity if:

If you know your security number and security questions, you can contact us and update your mobile number.

If you forget any of your login details, you can reset these online. Just look for these links when logging in:

We’ll also ask you to enter your name, date of birth and postcode as we’ll need this information to identify you. Depending on the account you have with us, you can choose to enter your 16-digit credit card number or sort code and account number from your savings or loan account.

A One Time Access Code is a code we use as an additional security measure to confirm your identity if you've forgotten your login details or are using a browser on a computer or mobile device we don't recognise.

We'll send you a One Time Access Code by text message or an automated call, depending on how you’ve chosen to receive it. No matter which option you select, you will then enter it online. This helps us make sure it's you logging in.

The One Time Access Code is valid for 10 minutes, so if it expires, you'll have to request another one. You can do it by choosing the 'Resend One Time Access Code' option displayed on your screen. Please note that you can only receive a maximum of 3 codes in 20 minutes.

If we don't have your up-to-date mobile and landline phone numbers, we'll send you a Temporary Security Number by post. This means that you'll have to wait for the letter to arrive before you can get back online.

To make sure you can always access Online Banking, it's important that you keep your mobile and landline phone numbers up to date.

When you log in to Online Banking on a computer or mobile device we don't recognise, we'll send you a One Time Access Code by text or an automated call. This code is valid for 10 minutes. You can choose an option to resend a new One Time Access Code up to 3 times within 20 minutes.

You'll be asked to enter the One Time Access Code during login. Once you've entered the One Time Access Code and confirmed your password, you'll be asked if you want us to recognise your computer.

If you ask us to recognise your computer, we'll store a small security token on your computer or mobile device, which lets us recognise it. We don't store any private or personal information about you or your accounts.

If we don't have your up-to-date mobile or landline number, we can't send you a One Time Access Code. Instead, we'll send you a Temporary Security Number by post which is valid for 30 days.

If you think someone knows your login details we would suggest resetting all of your security information.

Once you are logged in to Online Banking, at the top of the page, please select 'Settings', then 'Manage Security Details'. On this page, you can reset your username, security number, password and security questions.

If you think someone has used your login details and you're still concerned after resetting them, please contact us straight away.

As a security measure, we'll log you out of Online Banking if you've been inactive for 5 minutes. If you believe you are being logged out earlier than this, try clearing the cache on your browser and logging in again.

There may be a few reasons you’re having problems logging in to Online Banking. Below are some you can check before you contact us for help.

On the Tesco Bank website, select log in displayed in the top right-hand corner of the screen.

Enter your Username on the log in page and select 'Next'. On the next page, enter the two digits requested from your security number and your password.

If you're using a device that we don't recognise, we'll send you a One Time Access Code by text or automated call. This code is valid for 10 minutes. You can request a new One Time Access Code up to 3 times within 20 minutes.

You'll be asked to enter the One Time Access Code during login. Once you've entered the One Time Access Code and confirmed your password, you'll be asked if you want us to recognise your computer.

Please note - If you ask us to recognise your computer we'll store a small security token on your computer or mobile device to do this, but it doesn't store private or personal information about you or your accounts.