## Documentation Index

Access the complete documentation index at:
https://www.zoho.com/in/books/kb/llms.txt

Use this file to discover all available documentation pages before proceeding.

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# What is GSTR-1?

**GSTR-1** is your sales return which contains the details of the outward supplies of goods and services for the respective filing period. You need to file [GSTR-1](https://www.zoho.com/in/books/gst/how-to-file-gstr-1.html) on the 10th of every month.

The infographic below will help you understand each section of the GSTR-1 in detail.

![GSTR-1 Image](/books/kb/images/gst/gstr1-info.jpg)