IBAN Validator
Verify Italian and European IBAN codes with MOD-97 algorithm and bank recognition
IBAN Input
MOD-97 Algorithm Steps
Validation Results
IBAN Breakdown
Bank Information
When to Use IBAN Validator
International Payments
Verify recipient IBAN codes before sending international wire transfers to prevent payment failures and fees.
E-commerce Integration
Validate customer IBAN codes in real-time during checkout to reduce payment processing errors and chargebacks.
Payroll Processing
Verify employee bank account details before salary payments to ensure accurate and timely payroll processing.
Accounting Software
Integrate IBAN validation into accounting systems to prevent data entry errors and ensure compliance.
Customer Onboarding
Validate bank details during customer registration processes for financial services and subscription platforms.
API Development
Implement IBAN validation in banking APIs and financial applications to ensure data integrity and compliance.
Frequently Asked Questions
How does IBAN validation work?
IBAN validation uses the MOD-97 algorithm (ISO 7064) to mathematically verify the correctness of the IBAN code. It checks format, country-specific length, and calculates the checksum according to ISO 13616-1:2007 standard.
What countries are supported?
Our validator supports all 77 countries that use the IBAN system, including all European countries, some Middle Eastern, North African countries and other territories. Each country has specific validation rules and length requirements.
Does validation guarantee the account exists?
No, IBAN validation only verifies the mathematical and structural correctness of the code. It doesn't guarantee that the bank account exists, is active, or belongs to a specific person or company. Additional verification may be required.
What are ABI and CAB codes in Italian IBANs?
ABI (Italian Banking Association) is a 5-digit code that uniquely identifies the bank. CAB (Bank Routing Code) is a 5-digit code that identifies the specific branch or office. Together they help identify the exact banking institution.
Is my IBAN data stored or transmitted?
No, all validation is performed locally in your browser using JavaScript. No IBAN data is transmitted to or stored on our servers, ensuring complete privacy protection. The tool works entirely offline once loaded.
Is this IBAN validator free to use?
Yes, our IBAN Validator is completely free with no registration required, no usage limits, and no hidden fees. We believe essential financial tools should be accessible to everyone.
Can I validate IBANs in bulk?
Currently, our tool validates one IBAN at a time for optimal accuracy and privacy. For bulk validation needs, you can process multiple IBANs individually or consider our API solutions for enterprise use.
What happens if an IBAN is invalid?
If an IBAN is invalid, our tool will clearly indicate the specific issue - whether it's incorrect length, invalid characters, wrong country code, or failed checksum verification. This helps you identify and correct the problem.
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