GSTR-3B summarizes sales, purchases, and input tax credit claims, while GSTR-1 outlines outward supplies and sales transactions for a business.


GSTR-3B
GSTR-3B is a required GST return for all registered suppliers. It must be submitted on a monthly basis as a self-declaration.

Due date of GSTR-3B
The 20th of the month following the month that the supply corresponds to is the deadline for reporting GSTR-3B forms.

Non-filing of GSTR

GSTR-1
Every registered dealer is required to file GSTR-1, a monthly or quarterly return.