Hi Saikat,
I can’t see anyway to achieve this without modifying some code. The best you can do is indicate 0% but I agree that is not the same as tax exempt.
I saw this post which talks about modifying the invoice PDF for this sort of case. VAT exempted products/services - #9 by sonikf
I would add a field to product or to product selling price to indicate if tax exempt and then customize the PDF accordingly. May also be a hook for the line in recent PDF models to use ?
Good luck with this




