Charging Gst in excess of MRP

Jitesh Patwari (13 Points)

13 March 2018  
Can any shop or mall charge extra GST on a product which is on buy one get one free offer.
For eg : a product is of MRP Rs. 1899/-( inclusive of all taxes), and the product is on buy one get one free offer.
But when anyone purchase it they charge Rs. 1994/-.
It is valid to charge extra GST on lieu of buy one get one free offer.