GST Returns Explained: GSTR-1, GSTR-3B and Annual Return

GSTR-1: your sales

GSTR-1 reports the invoices you issued for outward supplies. Buyers’ input tax credit depends on it, so accuracy matters. It is usually filed monthly, while taxpayers under the quarterly (QRMP) scheme file quarterly.

GSTR-3B: summary and payment

GSTR-3B is a summary return in which you declare your total sales, claim input tax credit and pay the tax due. Monthly filers usually file it around the 20th of the following month. Quarterly filers have separate dates, and some states have different dates, so always check the due-date calendar on the GST portal.

GSTR-2B: your purchases, auto-drafted

GSTR-2B is a read-only statement built from your suppliers’ filings. Match it with your purchase records every month before claiming input tax credit.

GSTR-9: annual return

Eligible taxpayers file an annual return summarising the year. Whether it is mandatory depends on turnover and the applicable notifications, so confirm each year.

Composition scheme taxpayers

Taxpayers under the composition scheme follow a simpler pattern, with a quarterly statement and an annual return instead of the regular monthly returns.

Nil returns, late fees and interest

If you had no sales in a period you generally still need to file a nil return. Late filing attracts late fees, and unpaid tax attracts interest. Missing returns for several periods can also lead to notices and cancellation of registration.

Habits that make filing easy

• Record every invoice, sale and purchase as it happens
• Reconcile purchases with GSTR-2B each month
• Keep a calendar of due dates, or ask a professional to send reminders
• Pay tax through the portal, never to a third party’s account
• Never share your portal password or OTPs

Rules, thresholds and due dates change. This guide is general information, not legal, tax or financial advice. Confirm current requirements with the official portal or a qualified professional before acting. See our Terms & Disclaimer.