A Guideline To Filing GST Returns Online Visit GST Portal At WWW.GST.GOV.IN Get The GST Identification Number, Issued On Basis Of State Code And PAN Upload Invoices On GST Portal File Outward, Inward, And Cumulative Monthly Return Online File GSTR-1 Form Via The Common Portal Verify and Modify Details Of Outward Supplies In GSTR-2A File Inward Supplies Details In GSTR-2 Form Complete Filing And Ensure All Details Are Accurately Filed