Is it possible to maintain Tax Claculation for AP,PO,AR at Line level

 Hi Folks,

We need to maintain a tax line level in following modules.

PO: we will enter 2 lines each lines should calculate different taxes for the same supplier

AP: Manual Invoice we will enter 2 different Expense Items for the same supplier system should calculate line level tax

AR: Transaction level we will enter 2 different Revenue line system should calculate different taxes

Note:- each line we will maintain different % taxes is it possible?

If yes please suggest me how we can define rules based on Line level?