What is GST return? We at VJ consilium cater customers on monthly filing of your GST Returns within the stipulated time. Before going into the process of GST filing, it is important to understand what GST return means for business owners and service providers. GST returns essentially stands for filing of all GST. Every individual who is covered under the GST Act must produce their income to the Tax Department of India. This is known as return and it includes details of every sale and purchase.