Help logging in
Managing your savings online is quick, easy and safe. When you log into your NS&I account online, we use two-factor authentication (2FA) to ensure it’s you. 2FA works by adding another second step to the login process, other than just having a password. This extra layer of security keeps your account even safer from fraud. But, for 2FA to work, it's important that the phone number you have registered with us is up to date.
Two-factor authentication help
We have dedicated page with advice and tips that should help you through the extra steps involved with two-factor authentication.
Help with two-factor authentication
Finding your NS&I number
You need your NS&I number to be able to log into your NS&I account online. It will be 11 digits long and starts with an 11, 21, 31 or 41. You'll find your NS&I number on any letter you've had from us since you registered for our online banking service.
You can quickly get a reminder of your NS&I number online, using your name, date of birth and postcode.
Get a reminder of your NS&I number
Resetting your password
If you’ve forgotten your password, you can reset it online using your NS&I number and surname.
You’ll need your phone to hand as you’ll receive an automated call.
Still having trouble?
You can reset your details using our online form.
You’ll need your account or holder’s number to hand, as well as the type of account you hold with us.
Not registered for our online banking service?
Registering for our online banking service is probably the most convenient to manage your NS&I accounts. However, there are some things you can do online without needing to be registered.
You can now fill in an online form to switch to or withdraw money from certain accounts, or manage how you receive your Premium Bonds prizes.
Switch from one NS&I account to another
Change your Premium Bonds personal details
Change how you receive Premium Bonds prizes
You can also change how you receive Premium Bonds prizes without needing to be registered for our online banking service. We can pay prizes directly to your bank account or reinvest your prize money into more Bonds - you just let us know the option you prefer. We’ll also ask you for your nominated bank account details.
Update your prize options without creating an account
If you’re already registered for our online banking service, you'll need to log in to change how you receive prizes.