Hong Kong Tax ID Numbers
Identity Number (IN)
The Identity Number is 8 or 9 digits.
Business Registration Number (BRN)
The Business Registration Number is 8 digits.
Format Guide: N = Number; A = Letter; X = Number or Letter
Learn how to integrate Tax ID Pro into your software or web app
Check Tax ID Numbers for Over 100 Countries
You can integrate our API into your application. Sign up for a free trial.
Enter your email address to get started.