Solution : https://service.sap.com/sap/support/notes/561773 (SAP Service marketplace login required)
Key words : 
sales/purchases -> basic settings -> check calculation procedure-> define condition typesin, sales/purchases -> basic settings ->check calculation procedure -> define proceduresselect, calculation procedure taxbrjaccounting -> financial accounting global settings ->tax, financial accounting -> financial accounting global settings ->tax, icm1financial accounting -> financial accounting global settings ->tax, sales/purchases -> posting -> define tax accountsselect pio, sales/purchases -> basic settings ->check, pis    230         x830   jpis                            800  810          161    pis840   jpio                            830                161    piocreate, standard delivered procedure taxbrj, change existing tax codes
Related Notes : 
       
| 630603 | Customizing of Account Keys For BR Tax Calculation | 
| 576192 |