GSTR-3B (Summary Return): Due Date, Checklist & Penalty Details
Statutory filing schedule, legal sections under Central Goods and Services Tax Act, 2017, client document requirements, and late filing consequences for Indian practitioners.
GSTR-3B is a monthly self-declared summary return filed under Section 39 of the CGST Act. The due date is the 20th of the following month (or 22nd/24th under QRMP). Missing the deadline incurs a statutory late fee of ₹50/day (₹20/day for nil returns) plus 18% p.a. interest on net tax payable.
Client Document Collection Checklist
Required records to collect from the client before filing GSTR-3B (Summary Return):
Zero-Touch WhatsApp Follow-ups & Magic Upload Link
Never waste article hours chasing GSTR-3B (Summary Return) files manually. CORS automatically nudges the client over official WhatsApp at 7, 3, and 1 days before the due date with a 1-click upload link. The moment documents are submitted, reminders stop automatically.