Business GST laws and need for automation: Why the companies should gear up and be ready Updated : June 18, 2019 04:01 PM IST In the proposed new system for GST return filing, a taxpayer with a turnover above Rs 5 crore would have to file Form GST RET-1 on a monthly basis. Though the facility to allow amendment in returns is a welcome step, the impact of the same on the credit flows will have to be evaluated. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.