China Tax ID Numbers

Individual Identification Number (IIN)

For Individuals

The Individual Identification Number is 15 to 18 characters.


Uniform Social Credit Code (USCC)

For Entities

The Uniform Social Credit Code is 15 to 18 characters.


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.


Let's Validate

Enter your email address to get started.