Rcm under gst

Invoices raised on unregistered suppliers on RCM basis till 13.10.2017 will attract GST and payment wll be made to unregistered suppliers after deducting that GST portion. At the time of filing GSTR 3B for the month of october, the recipient will include these invoices and pay the amount deducted to govt as their output liability.

Since RCM notification is effective from 13.10.17, please clarify whether RCM payments have to be made for the months of July, Aug, Sept as per the original notification under sec 9 (4)

Yes for the months of July,August, September and even for october till 13.10.2017