Enable the relevant suppliers for Offset Tax and create an Offset Tax to remove the calculated tax line from these suppliers.

Define a Tax Status and Rate for Exempt, define a Party Fiscal Classification of Exempt, assign it to the relevant suppliers, and write a rule to incorporate the exempt Party Fiscal Classification.

Create a new Tax Regime for the Exempt tax and subscribe the exempt suppliers to the tax regime on the Configuration Options tab.

Define a Tax Status and Rate for Exempt, define a Supplier Fiscal Classification of Exempt, assign it to the relevant suppliers, and write a rule to incorporate the exempt Supplier Fiscal Classification.