When a Purchase order is approved and tax is also charged to the vendor. In this case, Inventory costing will take the price of the unit cost inclusive tax, whereas the last price will be shown as pretax price.
There is a configuration for in Tax Options of Organization - > Purchasing option.
Tax Types: there are by default 5 types are available.
Expand the tax type, let's say TAX1. Under the section "Add Tax 1 Amount to Vendor Price
For All Items:
