Can i multiple GSTN in one company

Hi @Surendar,

I'll share insight on your query about entering multiple GSTN in your QuickBooks Online (QBO) company. 

You can add a new tax agency in the Tax Centre page. It will allow you to enter a different GSTN. Be advised, I suggest you avoid entering multiple GSTNs in your QBO company. This allows you to avoid issues during a tax audit.

If you wish to proceed, follow these steps:

1. Go to the Taxes tab.
2. Click the Add tax button.
3. Select Custom tax.
4. Type in the appropriate information on the required fields. 
5. When done, press Save.

You can refer to this article: GST reports in QuickBooks. It lists GST related reports found in QBO, along with a short description of each. 

Feel free to leave a comment below if you have any other questions. I'll be sure to get back to you.