GSTR1 allows to amend B2B invoices pertaining to FY 2017-2018. Leave a Comment / Startup / By sudheendra@sudheendra.co.in Goverment had allow GSTR1 to amend B2B invoices pertaining to FY 2017-2018 from now onwards. Thank you CA Lalit Gandhi (8108776765) Sudheendra & Co LLP