FormatForge logoFormatForge

Banking and tax data checks

Business Validation Tools

Catch common typing, checksum and structural errors in international banking and VAT identifiers before onboarding suppliers, preparing invoices or importing master data.

IBAN Validator

Check IBAN length, country structure and checksum before payment or master-data import.

Open validator →

SWIFT/BIC Validator

Validate the basic structure of an 8- or 11-character SWIFT/BIC code.

Open validator →

VAT Number Validator

Check country prefix and format rules for supported VAT identifiers.

Open validator →

Validation versus verification

Format validation can catch malformed values, but it cannot prove that a bank account belongs to a supplier or that a VAT registration is active. Treat a passing result as an initial data-quality check and use official registries or controlled onboarding procedures for verification.

Frequently asked questions

Does a valid format prove that an account or business exists?

No. A syntax or checksum result does not confirm ownership, registration, active status or payment safety.

Are values sent to a server?

These validators are designed to run locally in the browser. Always follow your organisation's policy for sensitive banking and tax data.

Can VAT rules change?

Yes. Country formats and official validation services may change. Confirm important tax records using the relevant authority or official registry.