Hong Kong Tax ID Numbers
Identity Number (IN)
For Individuals
The Identity Number is 8 or 9 digits.
Business Registration Number (BRN)
For Entities
The Business Registration Number is 8 digits.
You can validate tax ID numbers with Tax ID Pro:
- Check tax ID numbers one at a time or with a spreadsheet.
- Learn how to integrate Tax ID Pro into your own software.
- Need to request W-9 or W-8 forms? Check out Nextform.