The Best IBAN Validation Tool to Prevent Fraud

Trustpair validates IBANs in real-time and prevents vendor payment fraud. Our solution verifies the authenticity of the bank account, its holder, and the match between the two.

Why Choose Trustpair to Validate IBAN Numbers?

Digitalize controls

Automate the validation of bank account details and eliminate fraud and error risks.

Improve Efficiency

Embed Trustpair into your existing stack  thanks to our 20+ native connectors

Control Globally

Validate vendor bank accounts in 190 countries thanks to the largest banking data sources network.

What is an IBAN number?

An IBAN (International Bank Account Number) is a standardized identifier used to uniquely recognize a bank account across borders. It ensures payments are routed to the correct bank and account, reducing errors an fraud. While the format is standardized, accuracy depends on much more than checking the number of characters. An IBAN includes:

On its own, an IBAN number doesn’t confirm who owns the account or whether it’s safe to use – making advanced bank account validation essential for fraud prevention at scale.

What are the main mistakes that can make IBAN codes wrong?

Turn Basic IBAN Checks Into Secure Account Validation With Trustpair

IBAN Validation By Country

Search a country and we’ll display local IBAN validation specificities.

Country
SEPA
Length
Example
Automated account validation in Trustpair

FAQ

Frequently Asked Question About
IBAN Validation

Browse through our different sections and find the answer to your question.

The following countries are having country specific validations: Australia, Austria, Belgium, Brazil, Denmark, Colombia, Finland, France, Germany, Greece, Iceland, Ireland, Israel, Italy, Japan, Luxembourg, Netherlands, New Zealand, Norway, Poland, Portugal, Spain, Sweden, Switzerland, United Kingdom, and United States. Our platform can validate bank account numbers from all of them.

Yes. Trustpair’s international account validation follows Nacha, KYC, and AML requirements. These ensure every bank account number, IBAN code, and routing number is in the correct structure and valid format to prevent failed transactions.

Trustpair checks each International Bank Account Number (IBAN) and basic bank account number across countries, guaranteeing payments are processed securely and reach the right destination. The platform helps businesses identify fraud risks and protects both corporate and individual accounts while staying 100% compliant.

IBAN validators only check the format of IBANs, not their validity. They don’t check:

  • That the bank account actually exists or
  • Who the recipient is.

Even using the best-in-class tool might validate a null IBAN, resulting in a return of funds.

This process also leaves a huge security gap in your account validation process. If you use free IBAN validators to check your supplier’s credentials, it exposes you to wire transfer scams.

Wire transfer fraud takes various forms:

  • Vendor fraud: fraudsters impersonate your suppliers to get you to send them unauthorized funds.
  • CEO fraud: scammers pretend to be your CEO to ask you to wire funds.
  • Internal fraud: employees approve payments for fake or illegitimate invoices.

None of these frauds can be prevented by checking IBAN.

An anti-fraud solution like Trustpair protects you against financial fraud by doing 3-way matching. When checking IBAN, we check:

  • The bank account digits are correct and the account is valid.
  • The account belongs to someone.
  • Both pieces of information match.

IBAN validators also aren’t efficient. If you want to check several bank numbers internationally, you’ll have to do it manually one by one. It’s OK if it’s an occasional task, but not if you’re a company that deals with various international suppliers.

In this case, it’s more efficient — and secure — to use a first class solution like Trustpair. Our solution detects IBAN mistakes but also fraudulent attempts, supporting your anti-fraud strategy.

Yes, you can easily integrate Trustpair into your existing software – procurement, ERP, and TMS. We offer several technical options to connect with your existing tools such as SAP, Ariba, Sage. You can also embed our automatic international account validation tool in your systems with our API, and so boost your financial teams poductivity by avoiding switching between platforms.

Duplicates. Inconsistencies. Fraud. Clean your vendor data before it costs you

Regulation Rising - Payment Trends Defining 2026