When we create a Supplier, How are we supposed enter the Supplier tax reg details ?

Good day, accounts,

You can add the supplier's tax registration details on the Business ID No. or Government registration number box. These options can be seen when adding the supplier's information in QuickBooks.

If the supplier is already added, follow these steps below:

1. Click Expenses on the left pane, then select Suppliers.
2. Locate the name of the supplier, and click to open.
3. Select Supplier Details, then click Edit.
4. Enter the information on your preferred box, either Business ID No. or Government registration number box.
5. Click Save.

Check this article to know more about the Suppliers overview: https://community.intuit.com/articles/1782126.

You can always post in the Community if you have questions.