Guide

What Is a BIC/SWIFT Code?

Learn how BIC/SWIFT code format works, why codes are 8 or 11 characters, and why BankCodeKit validates format only.

Who this guide is useful for

Users checking bank identifier fields on invoices, payment instructions, vendor records, and international transfer forms.

BIC format in plain language

A BIC is a Business Identifier Code. People often refer to it as a SWIFT code in payment contexts. BankCodeKit checks whether the code follows the expected format, not whether it appears in a licensed directory.

8 character and 11 character codes

A BIC can be 8 or 11 characters. The 8 character version contains a business party prefix, country code, and location/business party suffix. The 11 character version adds an optional branch identifier.

  • Business party prefix: 4 alphanumeric characters.
  • Country code: 2 alphabetic characters.
  • Location/business party suffix: 2 alphanumeric characters.
  • Optional branch identifier: 3 alphanumeric characters.

What format validation checks

A format check can verify length and character placement. It can parse the visible segments so a user can review what each part means.

Practical BIC example

A common test-style BIC example can show the segment pattern without proving that the institution is active or reachable.

  • Example BIC8 pattern: DEUTDEFF
  • Business party prefix: DEUT
  • Country code: DE
  • Location/business party suffix: FF
  • Optional BIC11 branch pattern: DEUTDEFF500

Important limitations

BankCodeKit validates format and reference data only. It does not confirm account existence, account ownership, bank connectivity, sanctions status, fraud risk, payment readiness, or payment success.

  • It does not confirm that a bank exists.
  • It does not confirm directory status or Swift network connectivity.
  • It does not confirm that a transfer can be routed successfully.
  • It does not use licensed bank directory data.

FAQ

Can a BIC be 8 characters?

Yes. A BIC can be 8 characters, with an optional 3 character branch identifier making it 11 characters.

Is BIC the same as SWIFT code?

People often use BIC/SWIFT together in payment contexts. BankCodeKit focuses on the BIC format.

Does a valid BIC format prove bank connectivity?

No. Format validation does not confirm Swift network connectivity, directory status, or bank participation.

Should I verify a real BIC elsewhere?

Yes. Verify real payment details with your bank, payment provider, invoice issuer, or recipient.

Sources and update note

BankCodeKit uses visible BIC/SWIFT format rules only and checks them locally in the browser. It does not use a licensed BIC directory and does not confirm directory status, bank existence, or Swift network connectivity. The official Swift BIC / ISO 9362 information is used as a reference source, and periodic review does not imply live directory accuracy.

BankCodeKit validates format and reference data only. It does not confirm account existence, account ownership, bank connectivity, sanctions status, fraud risk, payment readiness, or payment success.

Last reviewed: 2026-05-15 Sources: Swift BIC / ISO 9362 information Reference data is reviewed periodically. BankCodeKit does not perform live bank, account, sanctions, or payment-network verification.