How avoid tax entry from AP invoice not hit Receipt/ Cost accounting as acquisition cost adjustment

Summary:

How to avoid tax amount getting excluded from Item's average cost

Content (please ensure you mask any confidential information):

Business is creating AP Invoice with Tax, There is no tax calculated at PO level, it's only calculated at AP invoice level.

After AP invoice is accounted, the tax entry is generating 'Invoice Price Adjustment' transaction in Receipt and Cost Accounting.

Since we're using average costing, this adjustment amount is hitting Inventory valuation and updating the average cost.
Business doesn't want to have tax amount included in Item's average cost, but with above behaviour it is getting included. Please help with a way to avoid getting tax getting included in Item's cost.