GSTR 1 return filing is a return that should be filed by each and every registered dealer and is a monthly or quarterly return. Basically it contains all the details of sales (and other outward supplies). It doesn’t matter if there are any transactions during the month or not, you have to file GSTR 1. Some registered persons are exempted from filing it like- Composition Dealers, Taxpayer liable to collect TCS, Taxpayer liable to deduct TDS, Input Service Distributors, and Non-resident taxable person. Charges for late filing GSTR 1 is 200.