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GSTR-3B is India’s summary GST return for declaring a tax period’s liabilities and discharging them. Normal and casual taxpayers generally have to file it for every tax period, including periods with no business. The return is filed on the GST Portal; whether a quiet period qualifies for a nil return depends on specific conditions.
What does GSTR-3B report?
GSTR-3B is a summary return, not an invoice-by-invoice statement of outward supplies. The GST Portal describes its purpose as declaring a taxpayer’s summary GST liabilities for a particular tax period and discharging those liabilities. It is filed for a tax period through the GST Portal.
It works alongside other GST records. Certain outward-supply details are auto-drafted from GSTR-1 or GSTR-1A, while selected liability and input tax credit (ITC) fields draw on GSTR-2B. GSTR-2B is an auto-drafted, read-only ITC statement that informs the return; it is not itself a return to file. The portal says auto-drafted values in GSTR-3B are editable, so review them against your records rather than treating them as final.
Who must file GSTR-3B?
Normal taxpayers must file GSTR-3B for each tax period, and the GST Portal also says casual taxpayers must file even when they had no business in that period. Having no sales does not by itself mean there is no filing obligation or that the return can be filed as nil.
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When is GSTR-3B due?
The ordinary due date depends on filing frequency. Monthly returns are ordinarily due on the 20th of the month following the tax period. Quarterly returns are ordinarily due on the 22nd or 24th of the month after the quarter, according to the date notified for the taxpayer’s State or Union Territory. The government may extend a due date, so check the GST Portal’s Returns Dashboard for the selected financial year and tax period.
Monthly filing or QRMP?
The QRMP scheme means quarterly returns but monthly tax payments for eligible taxpayers. The GST Portal’s guidance lists aggregate annual turnover up to ₹5 crore in the current and preceding financial year as an eligibility condition, along with other taxpayer-category and filing-status conditions. Check current portal guidance for the relevant GSTIN and financial year.
| Filing option | GSTR-3B frequency | Ordinary due-date pattern | Tax-payment frequency | Eligibility |
|---|---|---|---|---|
| Monthly filing | Monthly | 20th of the following month | Monthly | Not stated here as a separate threshold; see GST Portal guidance. |
| QRMP | Quarterly | 22nd or 24th of the month after the quarter, as notified for the State/UT | Monthly, through challan | Eligible taxpayers; portal guidance includes aggregate annual turnover up to ₹5 crore in the current and preceding financial year, plus other conditions. |
These are ordinary patterns, not guarantees for a particular period: notification-based extensions can change a deadline. The QRMP ₹5 crore condition and other eligibility rules should be confirmed against current GST Portal guidance.
Can you file a nil GSTR-3B if there was no business?
Only if the period meets the portal’s nil-return conditions. The GST Portal describes nil filing for a period with no outward supplies, no inward supplies, and no tax liability. It also requires that there be no relevant auto-populated values from GSTR-1/IFF or GSTR-2B, no manual entries, and no outstanding interest or late fee.
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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Items that can make a return non-nil include nil-rated, exempt, or non-GST supplies; reverse-charge supplies; ITC claims or reversals; and interest or late-fee liability. Therefore, no taxable sales alone is not enough to establish nil eligibility. Review the portal’s current validations before selecting the nil option.
How to file GSTR-3B on the GST Portal
- Sign in to the GST Portal and open Services > Returns > Returns Dashboard.
- Select the financial year and tax period. Check the due date shown for that period.
- Choose Prepare Online for GSTR-3B and review the return, including auto-drafted values against source records.
- Preview the draft and resolve any validations or discrepancies shown on the portal.
- File using DSC or EVC, as applicable, then download the filed return for your records.
Portal labels and validations may change; follow the live instructions for the selected return period.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What changed for interest in the January 2026 tax period?
A GSTN advisory surfaced in official portal search says that, beginning with the January 2026 tax period, the table 5.1 interest computation accounts for the minimum balance in the Electronic Cash Ledger during the relevant delayed-payment period. It also describes the auto-populated interest as a minimum amount that taxpayers should self-assess. The published material available here does not establish a formula suitable for individual calculations; consult the current GSTN advisory and your tax professional for a taxpayer-specific computation.
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