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🌍 International Routing Validator

Validate UK sort codes, Canadian transit and institution numbers, and Australian BSBs with native checksum logic. Surface bank metadata so you can route payments confidently.

International Routing Validator

Validate non-US clearing codes with the native checksum rules used in the UK, Canada, and Australia. Surface institution metadata to confirm you're routing funds to the correct branch before initiating a payment.

Clearing system

Enter a 6-digit sort code and 8-digit account number to run modulus checks.

Sort code

Account number

Account number (optional)

Checksum results

Sort code length

Sort code must be 6 digits.

Account length

UK accounts use 8 digits.

StatusReview validation errors

Normalized—

Reference directories

The Vocalink modulus checking ↗ publishes authoritative routing information for United Kingdom. Use their feeds for production payment files.

How to use this tool

Choose the clearing system that matches your beneficiary.
Provide the routing identifiers and optional account number.
Review checksum outcomes and confirm the institution metadata before processing payments.

Operational tips

Store sanitized digits only—presentational separators should be applied at render time.
For UK accounts with exceptions, compare both modulus 10 and 11 results against Vocalink tables.
When Canadian branches merge, update transit numbers promptly to prevent returns.

Automation ideas

Integrate this validator into onboarding flows to reject mistyped routing details in real time.
Attach institution metadata to payment approval queues so treasury can confirm the counterparty.
Log checksum failures as structured events for audit-ready error reporting.

FAQ

Does this replace official clearing directories?: No. It mirrors common checksum logic for testing purposes. Always reconcile against official payment network data feeds.
Why do some UK sort codes fail modulus checks?: Certain sort codes have published exceptions or alternative weight tables. Consult the latest Vocalink specification for overrides.
Can I extend this to other countries?: Fork the component and add new systems with their checksum and metadata rules—ToolHop handles rendering automatically.

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