GST Invoice query ......

Respected members Please note we are considering a case with payment of gst (export) 2 bills, one is gst invoice taxable value 100 + gst rs 18 = invoice 118 second is commercial invoice 100 no tax there bcz we cant export tax now question 1) while pepaering shipping bill which of above two invoice should be considered or both two bill details will be in shipping bill 2) in gstr 1 table 6A invoice value will be 100 or 118 3) in shipping bill invoice value will be 100 or 118