How to File GSTR 1 from Tally ERP 9 Release 6 GSTR 1 is a monthly return that should be filed by every registered dealer. It contains details of all outward supplies i.e. sales. The due date for GSTR-1 is 10th of next month. But for the month of July the due date is 5th September 2017 and, for August it is 20th September 2017 . In this article,we will explain you how to file GSTR 1 from Tally 9 ERP 6. The process of filing the GSTR 1 from Tally ERP 9 on the GST portal can be divided into three steps : Step 1 – Exporting the data of GSTR 1 from tally to excel file. Step 2 – Converting the excel file to JSON file using GST offline tools available on GST portal. Step 3 – Uploading the JSON file on GST portal . Detailed Steps to file GSTR 1 using Tally ERP 9 Release 6 Step 1 : View the GSTR 1 report in Tally First, view the GSTR 1 report generated by Tally. For this go to Display > Statutory reports > GST ...