GSTR-3B
GSTR-3B: GSTR-3B is the self-declared GST summary return, filed monthly or quarterly, in which a taxpayer reports outward supplies, claims input tax credit and pays tax. Lenders compare GSTR-3B turnover with sales in GSTR-1, ITC claimed with GSTR-2B, and both with bank credits, using gaps between the returns as signals of misreporting or cash-flow stress.
Why GSTR-3B matters in credit and collections
- GSTR-1 reports outward supplies invoice by invoice; GSTR-3B summarises them and settles the tax, so taxable turnover in the two should broadly agree.
- ITC claimed in GSTR-3B is expected to be supported by GSTR-2B, and parts of GSTR-3B are auto-populated from GSTR-1 and GSTR-2B.
- Rule 88C requires taxpayers to explain where liability in GSTR-1 exceeds that paid in GSTR-3B beyond a prescribed threshold, making persistent gaps visible to the tax authority.
- Filing regularity matters: late or missing GSTR-3B filings, recurring interest on late tax, or a GSTIN suspended for non-filing are underwriting red flags.
What GSTR-3B contains and how it differs from GSTR-1
GSTR-3B is a summary, not an invoice-level return. Its tables capture outward taxable supplies and the tax on them, zero-rated, exempt and nil-rated supplies, inward supplies liable to reverse charge, eligible ITC and its reversals, and the payment of tax — partly set off from the electronic credit ledger and the balance paid in cash. Monthly filers file by the 20th of the following month; smaller taxpayers under the QRMP scheme file quarterly on staggered due dates and pay tax monthly through a challan.
GSTR-1 is the counterpart on the sales side. It lists outward supplies invoice by invoice so that customers' GSTR-2B can be populated, but it does not discharge tax; GSTR-3B does. The two should broadly agree for the same period, allowing for timing and amendments. A GSTR-1 that consistently reports more than GSTR-3B means tax is being declared to customers but not paid — the gap Rule 88C asks taxpayers to explain. A GSTR-3B that consistently reports more than GSTR-1 is rarer and usually points to reporting errors or advances received.
For underwriting, GSTR-3B is the borrower's own declaration of turnover and the one backed by tax payment, so it is often the primary GST turnover figure in the CAM. Analysts compare it month by month with GSTR-1 for consistency, with GSTR-2B for credit discipline under Rule 88D, and with bank credits from Bank Statement Analysis for cash reality. Filing history matters too: delays, nil returns in months with bank activity and interest paid on late tax all say something about how the business manages cash.
Regulatory basis
GSTR-3B is filed under Section 39 of the Central Goods and Services Tax Act, 2017 and Rule 61 of the CGST Rules, 2017. Rules 88C and 88D require taxpayers to explain differences between liability reported in GSTR-1 and GSTR-3B, and between ITC claimed in GSTR-3B and available in GSTR-2B, beyond prescribed thresholds. Lenders access returns with the borrower's consent through the GST portal or GST Suvidha Provider routes.
Source: Goods and Services Tax Network (GST Portal)How lenders reconcile GSTR-3B in underwriting
- Pull GSTR-3B, GSTR-1 and GSTR-2B together for the same months and GSTINs, with the borrower's consent, typically covering twelve months or more.
- Tabulate GSTR-1 versus GSTR-3B taxable turnover by month and ask about any sustained gap.
- Compare GSTR-3B turnover with bank credits after adjusting for GST, inter-account transfers and non-business receipts.
- Check filing timeliness and interest paid; chronic late filing is a cash-management signal.
- Cover every GSTIN of a multi-state borrower, since turnover can be split across registrations.
GSTR-3B — frequently asked questions
What is the difference between GSTR-1 and GSTR-3B?
GSTR-1 lists outward supplies invoice by invoice and does not pay tax. GSTR-3B is a summary return in which tax is paid and ITC claimed. Lenders expect their turnover figures to broadly agree.
Which GST return do lenders use for turnover?
Most use GSTR-3B as the primary figure because tax is paid on it, and cross-check it with GSTR-1 and bank credits. Some programmes also use GSTR-1 for invoice-level detail on customers.
Is a mismatch between GSTR-1 and GSTR-3B always a problem?
Not always. Timing differences, amendments and advances can cause temporary gaps. Sustained or growing mismatches, however, suggest unpaid tax or misreporting and need an explanation before sanction.