Click here - How to add a GSTIN to be managed by GSTZen for video presentation
Click on New GSTIN
Enter GSTIN and Save GSTIN
Click on the GSTIN you added and you will enter the software.
Click on the relevant month for which GSTR-1 return needs to be filed from the Tax Returns Matrix.
Provide GSTZen with information about Sales Invoices, Credit and Debit Notes, and Advances. You can upload them easily using XLS files. GSTZen importer is flexible and can work with data from any accounting software.
Login to the Government portal and Download your Purchase invoices, Credit and Debit notes into GSTZen. These are Invoices that your suppliers have uploaded in their GSTR1 return.
NOTE: Once you submitted cannot changed. So, please check once before you submit
To know more about detail of GSTR-1 form Click here