Taiwan Tax ID Validator

Validate Taiwan Business Tax ID (統一編號) using the official algorithm.

Note: This tool validates Taiwan Business Tax ID (統一編號) format using the official algorithm. It does not verify if the business is currently active or registered.

How to Use

Enter an 8-digit Taiwan Business Tax ID and click Validate. The tool will check if the number is valid using the official Ministry of Finance algorithm.

About Taiwan Tax ID

The Tax ID consists of 8 digits. The validation algorithm uses weighted checksums with special handling for numbers with 7 in the 7th position. This ensures the number follows the correct format specified by Taiwan's tax authorities.

FAQ

Related Tools

Mortgage CalculatorCompound Interest CalculatorLoan CalculatorCredit Card Calculator