uphold

uphold/tin-validator

Validate and mask a Taxpayer Identification Number (TIN)

JavaScript
4
4
MIT License

The tin-validator library is a Node.js tool for validating and masking Taxpayer Identification Numbers (TINs), including US EINs/SSNs and EU formats. It provides async methods to check validity, obscure sensitive digits, and sanitize input, primarily for developers building compliant financial or tax-related applications. EU validation leverages an external commission API

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