Good Day, 

We would like to capture the 2% withholding VAT immediately the supplier invoice is posted. 

Suppose we have a supplier invoice with an exclusive amount of sh.100, we would like the entry to go as follows

Dr Expense/Inventory 100

Dr VAT control             16 

             Cr Payables   116

Then at this point also 

Dr Payables                        2

         Cr Withholding VAT   2

How can we achieve this in one entry? 

Side note: We have explored the global tax option and posting using payables journals, but these have limitations due to the volume of invoices involved, it is possible some invoices will be left out, manual calculation of the WHTVAT in the case of journals, and manual allocations in both cases.