GSTR-3B: Due Date, Late Fee, Format, Filing Steps & Eligibility
If you're registered under GST, GSTR-3B is one return you simply cannot ignore. It's filed every month — or every quarter if you're on the QRMP scheme — and it covers the summary of your sales, ITC claims, tax liability, and more. Miss the due date, and you're looking at late fees plus 18% annual interest. So let's break this down properly.
GSTR-3B is a self-declared summary GST return. Every registered taxpayer fills it in with consolidated figures — sales, input tax credit claimed, and the net tax payable. No invoice-level detail is required here. Just the summary.
A few things you need to know upfront:
A separate GSTR-3B must be filed for every GSTIN you hold
Tax liability has to be paid on or before the filing date — not after
Once you file it, GSTR-3B cannot be revised
Even if there's zero liability for the month, filing is still compulsory
Important update from July 2025: The government has implemented hard locking of auto-populated liability in GSTR-3B. The figures system generates are now locked — you can't override them freely.
Also from November 2025: The values in Table 3.2 (inter-state supplies to unregistered persons, composition taxpayers, UIN holders) are now non-editable in GSTR-3B. The system pulls these from GSTR-1/1A/IFF, and you have to use those system-generated values only. If something is wrong, the correction route is through GSTR-1A for the same period — not by editing the GSTR-3B directly.
Every GST-registered person has to file the GST 3B return — with a few exceptions.
These categories do NOT file GSTR-3B:
Taxpayers under the Composition Scheme
Input Service Distributors (ISD)
Non-resident suppliers of OIDAR services
Non-resident taxable persons
Everyone else? Monthly filing. No exceptions.
The standard due date for GSTR 3B return is the 20th of the following month. But it depends on your filing frequency:
Filer Type
Due Date
Monthly filers (non-QRMP)
20th of the next month
QRMP scheme filers (certain states)
22nd of the month after the quarter
QRMP scheme filers (remaining states/UTs)
24th of the month after the quarter
Taxpayers who opted for the QRMP scheme from January 1, 2021 follow the 22nd or 24th deadline based on their state/UT of principal business.
From July 2025: Taxpayers cannot file GSTR-3B after a period of three years from the original due date of that tax period's return. So don't let it pile up.
One more thing — even if you paid the tax on time but filed the return late, both interest and late fees will apply. Payment and filing are two separate compliance requirements.
Nobody wants to pay this, but here's what happens when you miss the deadline:
Rs. 50 per day of delay (Rs. 25 CGST + Rs. 25 SGST)
Rs. 20 per day for taxpayers with nil tax liability
18% per annum interest on any outstanding GST dues not paid by the due date
The interest starts from the day after the due date. It's calculated on the net tax payable after ITC — not the gross liability.
The form gstr 3b requires you to report the following:
Table 3.1 — Details of outward supplies and inward supplies liable to reverse charge
Table 3.2 — Inter-state supplies (now system-generated and non-editable)
Table 4 — Eligible ITC
Table 5 — Exempt, nil-rated, and non-GST inward supplies
Table 5.1 — Interest and late fee payable (now includes a 'RE-COMPUTE INTEREST' button on the GST portal as of April 2026)
Table 6 — Payment of tax
Table 6.1 — TDS/TCS credit
You don't need invoice-wise data here. Just the consolidated totals. That's the whole point of this form.
Before you file, it's worth reconciling your GSTR-3B with GSTR-2A and GSTR-2B. Here's why that matters:
You could end up claiming excess ITC, which triggers a GST notice
Genuine ITC might get missed if your supplier hasn't uploaded their invoices
Reconciliation pushes suppliers to upload their GSTR-1 data on time
It keeps your GST compliance rating in good shape
GSTR-2A updates in real-time as suppliers file. GSTR-2B is a static monthly ITC statement. Both need to match what you're claiming in your gst 3b return.
These two returns work together, but they serve different purposes:
GSTR-1 — You report every invoice, outward supply, and sales detail here
GSTR-3B — You report only the summary: total sales, ITC claimed, and tax payable
Reconciling gstr 1 and gstr 3b is critical. A mismatch can mean you've underpaid tax (interest applies), duplicated an invoice, or let a supplier's ITC claim slip through incorrectly.
Filing your gstr 3b on the official portal is fairly straightforward once you know the sequence:
Go to www.gst.gov.in and sign in with your credentials.
Navigate to Services → Returns → Returns Dashboard. Select the financial year and the filing period, then hit Search.
On the File Returns page, find the GSTR-3B tile. Click Prepare Online.
The portal will ask if you want to file a Nil return. Answer Yes or No and proceed to the relevant tables.
Fill in the details for outward supplies, ITC, and other tables. After completing each section, click Confirm.
Click Save GSTR-3B, then preview the draft to review everything before locking it in.
If there's any liability, click Proceed to Payment. You can use your Electronic Cash Ledger or Electronic Credit Ledger to settle the dues.
Click Proceed to File, select the authorized signatory, and verify using DSC or EVC/OTP. Done.
The GST portal now has an IMS Offline Tool — an Excel-based utility launched in April 2026. It handles invoice reconciliation without you needing to stay logged into the portal. If you're dealing with high invoice volumes, this is worth using before you file gstr 3b each period.
A: GSTR-3B meaning refers to a monthly (or quarterly) self-declared summary return under GST. It captures consolidated figures of outward supplies, input tax credit claimed, and net tax payable — not invoice-level data. Every GSTIN must file it separately.
A: GSTR-1 requires invoice-wise details of all outward supplies. GSTR-3B requires only summarised figures — total sales, ITC, and tax payable. Both must be filed, and ideally reconciled with each other before filing.
A: To download GSTR-3B, log in to gst.gov.in → go to Services → Returns → Returns Dashboard → select the period → open the filed GSTR-3B → click the PDF or download option. The gstr 3b download is available for all filed periods.
A: No. Once you file gstr 3b, it cannot be revised. If there's an error in outward supply data, you can correct it through GSTR-1A for the same period. For ITC, corrections flow through subsequent returns. This is why accuracy before filing matters.
A: Late filing attracts Rs. 50 per day (Rs. 20 for nil returns) as a late fee. Additionally, if GST dues were unpaid past the due date, 18% annual interest applies on the outstanding amount — even if you paid tax eventually.
A: Yes. A nil GSTR-3B must still be filed even if there are no sales or purchases. Skipping it leads to late fees and can block future return filings.
A: GSTR-3 was originally planned as an auto-populated return based on GSTR-1 and GSTR-2 data. Due to implementation issues, it was kept on hold and replaced with GSTR-3B — a self-declared summary return that taxpayers fill in manually.
A: No. GSTR-3B must be filed separately for each GSTIN. There is no provision to club returns across registrations, even if both are under the same PAN or entity.
A: The format of GSTR-3B includes tables for outward supplies (Table 3.1), inter-state supplies (Table 3.2), eligible ITC (Table 4), exempt/nil-rated supplies (Table 5), interest and late fee (Table 5.1), and tax payment (Table 6). It is a summary return — no invoice-wise details are needed.
A: For taxpayers under the QRMP scheme, the GST 3B return due date is the 22nd or 24th of the month following the quarter — depending on the state or UT where the principal place of business is located.
Your email address will not be published. Required fields are marked *