Buying an NS&I product, registering an existing holding for access and signing in are separate tasks. Treating them as one can send you down the wrong route, delay access or lead you to create details you do not need.
Choose the right NS&I route first
Identify your starting point and you will reach the correct NS&I journey.
A Premium Bonds holding can be between £25 and £50,000 for one person. Buying Bonds creates a holding. It does not mean that you have already created online login details. Think of the holding as the money in a locked cupboard, while online access is the key made for that cupboard.
New product, registration or recovery?
| Your situation | Correct route | What you need | Mistake to avoid |
|---|
| You want to buy Premium Bonds or open a current NS&I product | Apply for the new product | Personal and payment details | Calling this a login registration |
| You already hold NS&I savings but have never used digital access | Register for access | Identity and holding details | Applying for the product again |
| You used online access before but lost details | Recover sign-in details | Known contact and identity details | Registering for a second time |
Check whether you already hold NS&I
Choose one route only: buy when you need a new product, register when you need first-time digital access to an existing holding, and recover when you already had access but cannot sign in.
When you register an existing NS&I holding, use the number and personal details requested on the official journey rather than assuming every reference on an old document is an NS&I number. Your correspondence may contain a holder’s number, certificate number, account number or transaction reference, and these serve different purposes. An NS&I number is normally used with your NS&I sign-in details once access has been set up.
If you cannot identify the right number, look through recent statements or official correspondence and then use NS&I’s sign-in recovery process instead of making repeated guesses. Your name, date of birth, address and the details held against the investment must also match NS&I’s record.
See why NS&I routes differ
Separate the savings product from the way you view it.
Product record versus online access
Whether you hold a product and whether you can view it online are separate matters. Register through the official National Savings and Investments website, not through a link in an unexpected email or text. A genuine NS&I journey should begin from the official site that you typed or saved yourself.
ISA rules are a separate issue
Whether a product is an ISA is separate from the process of registering for or recovering online access.
Your NS&I route in three checks
1. Want new savings?
Apply for the product.
2. Already hold NS&I?
Register for access.
3. Had access before?
Recover your details.
Register or recover access safely
Collect your details before you begin and choose recovery where you may already be registered.
Prepare details before registering
Before registering, have your identity and holding details ready.
Resolve failed registration correctly
Choose password reset when the account is recognised but the password is forgotten. Choose access recovery when you no longer have the sign-in details or are unsure whether registration was completed. Contact NS&I through its official channels if identity verification cannot match your record.
If registration or sign-in recovery does not work, first check whether the email address, mobile number and home address on file may be out of date. A failed match does not necessarily mean that your existing savings holding has disappeared; it can mean that NS&I cannot verify the identity and holding details entered online. Use the official recovery route where you have forgotten your NS&I sign-in details, and avoid repeated attempts if access becomes blocked.
If the product is older, held jointly through a representative arrangement, or does not offer the requested digital service, NS&I may require telephone or postal contact instead. Do not create a second registration merely because the first attempt has failed.
Manage what NS&I allows online
Use online services for routine tasks, then switch channel when the account type requires it.
Use online services for routine changes
Use the online services available for your product to manage routine tasks.
Switch channels for special cases
Use NS&I’s alternative contact route for an attorney acting under a Power of Attorney, an executor dealing with a death, a minor’s account, a beneficiary nomination question, or a change of ownership. These are legal-status matters, not ordinary account settings.
This guide does not help you choose between ISAs and Premium Bonds by return, time horizon, risk or tax treatment. It also does not replace NS&I’s specific process for representatives, children’s accounts, bereavement, inheritance or changes of ownership.
After registration, online account management can make routine NS&I savings tasks easier, although the menu depends on the product you hold. For a Premium Bonds holding, online access may allow you to view your holding, check prize results, update eligible contact information, review payment instructions and buy Premium Bonds, provided you remain within the Premium Bonds limit of £50,000 per person.
For other NS&I savings products, digital access may let you view balances, interest or transaction information and make instructions that the product supports. Always read the confirmation screen before submitting a change, particularly where it affects prize payments, withdrawals or bank details.
FAQs
How do I register for an NS&I account?
Register only if you already hold an eligible NS&I product and have not had digital access before. Keep your identity and holding details ready, then use the official NS&I site.
How do I log into NS&I Premium Bonds?
Log in through the official NS&I sign-in page using your existing registered details. Use recovery or password reset if you cannot sign in, rather than applying for more Bonds.
Can I open an NS&I account online for free?
Creating online access does not itself require a fee, but the product may have a minimum investment. Premium Bonds need at least £25, while the maximum holding is £50,000.
What if I do not know my NS&I number?
Use the official recovery or support route if you cannot find your NS&I number. Check old statements, certificates and correspondence first, but do not guess during registration.
Can I manage all NS&I products online?
No, online services depend on the product and the instruction you need to make. Older holdings, legal representatives and ownership changes may need phone or postal handling.
Is my NS&I money protected by FSCS?
NS&I money is backed by a 100% HM Treasury guarantee, rather than FSCS protection. This backing applies to eligible NS&I products under its terms.
Can I change my bank details online with NS&I?
You may be able to change bank details online where your product’s account menu offers that option. Check the confirmation details carefully because payments may rely on that bank account.
Take the next correct action
Match the task to the route before you enter any details.
- The essential point: buying a product, registering access and recovering a login are three separate NS&I actions.
- Check first: old certificates, statements and correspondence may show that you already have an NS&I holding.
- Use recovery when needed: a forgotten login is not a reason to open another product journey.
- Know the limit: Premium Bonds holdings run from £25 to £50,000 per person.
- Switch channel when required: legal, estate and ownership matters may not be available online.
Related sources
These articles can help you explore the topic in more depth:
