Part of our Nationwide Building Society UK — Complete Guide 2026 hub.
Nationwide’s sort code is 07-00-55 — a single sort code used by all personal current accounts. Because Nationwide operates as a building society with centralised processing, there are no branch-specific sort codes. Here’s how to find your full details and use them.
Nationwide Account Details at a Glance
| Detail | Information |
|---|---|
| Sort code | 07-00-55 |
| Account number | 8 digits — unique to you |
| SWIFT/BIC | NAIAGB21 |
| IBAN format | GB + 2 check digits + NAIA + 070055 + account number |
| Bank name | Nationwide Building Society |
| Bank address | Nationwide House, Pipers Way, Swindon, SN38 1NW |
How to Find Your Nationwide Sort Code and Account Number
Via the Nationwide app (quickest):
- Sign in and tap your account
- Tap Account details
- Sort code (07-00-55) and account number are displayed — tap to copy
Via Nationwide Internet Bank:
- Log in at nationwide.co.uk
- Select your account
- View Account details — sort code and account number shown
Other ways:
- Bank statements — sort code and account number appear at the top
- Debit card — some card details shown on statements and account letters
- In branch — any Nationwide branch can confirm your details with ID
- Call 03457 30 20 11 (24/7)
Why Nationwide Has a Single Sort Code
Traditional UK banks are organised around physical branches, each with a unique sort code. Because Nationwide Building Society operates with centralised processing rather than independent branches, all Nationwide personal accounts share the single sort code 07-00-55.
This makes it particularly easy to remember and share your Nationwide banking details. It also means two Nationwide customers have the same sort code but different account numbers — the 8-digit account number is what uniquely identifies your account.
What Your Sort Code and Account Number Are Used For
Together, your sort code and account number identify your account for incoming UK payments. You’ll need to share them for:
| Use Case | Why You Need These Details |
|---|---|
| Salary payments | Give to your employer’s payroll team |
| HMRC tax refunds and Child Benefit | Government BACS payments require these |
| Receiving bank transfers | From friends, family, or clients |
| Setting up direct debits | For utilities, subscriptions, mortgage |
| Standing orders from other banks | Sender needs your sort code + account number |
Sort code and account number are not sensitive. They can only be used to pay money into your account. You are safe to share them with anyone who needs to send you funds.
Nationwide SWIFT/BIC Code
Nationwide’s SWIFT/BIC is NAIAGB21.
It is required when receiving an international transfer. The SWIFT code identifies Nationwide Building Society to the global banking network. You’ll need it alongside your IBAN.
SWIFT/BIC codes are publicly listed and safe to share.
Nationwide IBAN
An IBAN (International Bank Account Number) encodes your UK account details in a globally recognised format for international transfers.
Nationwide IBAN structure:
GB + [2 check digits] + NAIA + 070055 + [8-digit account number]
Total: 22 characters. Example: GB15 NAIA 0700 5512 3456 78
Always use the IBAN displayed in the Nationwide app or Internet Bank. Manually constructed IBANs can contain check digit errors that cause transfers to fail or be delayed.
Sharing Your Details Safely
| What to share freely | What to keep private |
|---|---|
| Sort code (07-00-55) | PIN |
| Account number (8 digits) | Debit card number |
| IBAN | Card CVV |
| SWIFT/BIC (NAIAGB21) | Internet Bank password |
| — | One-time passcodes |
Nationwide will never ask you for your PIN, full password, or one-time codes by phone, email, or text. If anyone claiming to be Nationwide requests this information, it is fraud. End the contact and call 03457 30 20 11 directly from the number on the back of your card.