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Luhn & VAT Check Digit Calculator

Compute Modulo 10 Luhn check digits and validate European & global VAT tax registration numbers.

1. Luhn Modulo 10 Check Digit Generator
Calculated Luhn Check Digit:3
Full Payload with Check Digit: 79927398713
2. VAT Tax Registration Validator
Valid VAT Number Format
Country Code: DE
FAQ

Frequently Asked Questions

Everything you need to know about this tool

The Luhn algorithm (also known as Modulo 10) is a simple checksum formula used to validate credit cards, NPI numbers, IMEIs, and account identification numbers.
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