Tax amount on freight added to GL of stock

Hi Experts,

I am using SAP B1 Ver 9.0 PL 8 , I observed that in A/P invoice, when I entered Rs.100/- as Freight and Tax code 5%, system adds the Freight Tax Amount of Rs.5/- to GL of Stock.

I expect that the tax amount calculated on Freight should hit the Tax GL mentioned in Tax Setup.

Request for your comments.

BR