Can not specify AR and AP tax for transaction in EBS R12

Hi,

I have created multiple tax rate for each module with different tax regime and different tax jurisdiction.

When I create a transaction in AP invoices, the tax rate that show up is the tax for AR transaction.

Can anybody tell how to specify that tax that I created for AP or Procurement transaction only applicable to them and same thing for the AR and Sales transaction?

Thank you,

Ferdian