Student
                
                   236 Points
                   Joined May 2012
                
               
			  
			  
             
            
             CA Satish Reddy Ji, here is the exact provision and following suggestion.
If you buy a flat and entire consideration is payed after it has been completely constructed and completion certificate is issued by local municipality, or has been occupied earlier, it is pure sale of immovable property and it is out of scope of GST. Kindly refer entry 5 of Schedule III to CGST Act.
However, if a part of the consideration, advance or otherwise, is payed before issue of completion certificate, it is deemed supply of service under entry 5(b) of Schedule II to CGST Act.This service is taxed at 9% CGST + 9% SGST = 18%. However, there is a provision for reduced valuation. 1/3 of the consideration is deemed as cost of land and only 2/3 of the consideration is taxable. The effective rate becomes 18% * 2/3 = 12%. So if you pay a consideration of 50Lakh, you have to shell out GST of 6Lakh.
My suggestion is that you either into an informal agreement with the builder that you will pay the consideration once the certificate is issued. If the builder insists that he needs money to construct, you can enter into an interest free loan agreement. Pay the amount as a loan. Once the flat is constructed, receive a cheque from the builder as repayment of loan. Pay the repaid amount as consideration.
 
Now that I have read your second reply, I'm assuming that you are buying a flat which was already occupied by someone else. This sale is outside the scope of GST. Kindly refer entry 5 of Schedule III to CGST Act. The fee that he is charging you is membership transfer fee. This fee is charged by housing societies to alter the member's name in its books and for other registry documents. Kindly note that every co-operative housing society is regulated by its bye-laws and Co-operative Society Acts of its State. Obtain a copy of the bye-law and go through the relevant statutes. Dont pay any artbitrary fee. You are required to pay GST on such charges at 18% under residuary clause.