21 July 2017
Please correct me if my understanding is wrong. When a registered supplier sells goods to an unregistered supplier, he shall raise a tax invoice showing CGST&SGST / IGST as applicable and specifies UNREGISTERED DEALER in the 'GSTIN of Buyer' field and in the monthly return. This is from seller point of view.
From unregistered buyer point of view, when he in turn sells the goods to other buyer, he should raise a RETAIL INVOICE (not a tax invoice) without the tax element.
22 July 2017
Yes, your understanding is correct. Retail Invoice is replaced by Bill of Supply. Further, if this unregistered person has made B2B sale then purchaser will pay GST under RCM and in case this unregistered person has made B2C sale then the purchaser is a consumer and will not be covered under RCM.