Taiwan

Here are the details to validate tax registration numbers as per Taiwan's validation rules:

Country Code: TW

REPORTING_TYPE_CODE/ Validation Type	REPORTING_TYPE_NAME	No of Digits	Format	Check Digit	Check Digit Validation	Default Validation	Example TRN No
ORA_TW_VAT	Taiwan VAT	9	Numeric Characters Only	No	No	Validation for length as 8 or 9 digits	Good: 236397812 Bad: 1234567 -Invalid format, too short 12345678912 -Invalid format, too long
ORA_TW_TPID	Taxpayer ID for Taiwan	8	Numeric Characters Only	No	No	Validation for length as 8 or 9 digits	Good: 23639781 Bad: 1234567 -Invalid format, too short 12345678912 -Invalid format, too long
ORA_TW_BAN:COMPANY	Taiwan Business Administration Number Structure Validation for Company	8	Numeric Characters Only	No	No		Good: 35701598 Bad: ARF$34567 -Invalid format, only numbers are allowed 39292217 -Invalid format, remainder is not 0
ORA_TW_BAN:INDIVIDUAL	Taiwan Business Administration Number Structure Validation for Individual	9	First letter is always an alphabet. Others are all numeric characters. The whole number is validated in 2 steps. Each digit number multiple by a constant {1,2,1,2,1,2,4,1}. Result should be true where if Sum( a1 ~ a8) divide by 10 and remainder is 0.	No	No		Good: A35701598 Bad: AR945$34567 - Invalid format, only numbers are allowed A39292217 -Invalid format, remainder is not 0