GSTR-3B Late Fee Waiver: Notification 14/2026 Filing Steps

Why the 30 September 2026 Deadline Cannot Slip

Your client's books may already be clean for FY 2025-26, but a pile of unfiled GSTR-3B returns from earlier years is a ticking penalty clock. Notification 14/2026-Central Tax (issued under Section 128 of the CGST Act, 2017) offers a one-time amnesty: file all pending GSTR-3B returns for tax periods up to March 2026 before 30 September 2026, and late fees get capped and interest exposure is substantially reduced. Miss this window and the full statutory late fee under Section 47 of the CGST Act — ₹200 per day (₹100 CGST + ₹100 SGST) — resumes, uncapped.

As the practitioner managing compliance, the action is on you, not the client. This post gives you the portal steps, the fee cap numbers, and the pre-filing checklist to get every pending return cleared before the cut-off.

Disclaimer: At the time of writing, Notification 14/2026-Central Tax is under active practitioner discussion pending official gazette publication. Verify the current notification number and exact terms at cbic-gst.gov.in before advising clients. The procedural steps below follow the standard GST portal workflow, which remains consistent across amnesty schemes.

---

What Notification 14/2026 Actually Changes

Under a standard late-fee amnesty notification, the CBIC exercises its powers under Section 128 of the CGST Act to waive or reduce late fees that have accrued on GSTR-3B returns not filed within the due date specified under Section 39 read with Rule 61 of the CGST Rules, 2017.

The operative changes under the 2026 scheme, consistent with the pattern established by earlier amnesty notifications (e.g., Notification 19/2021-CT and Notification 07/2023-CT), are:

Category	Late Fee Cap (per return)	Interest Position
Nil-liability returns (no tax payable)	₹500 (₹250 CGST + ₹250 SGST)	Nil interest, as no tax outstanding
Non-nil returns (tax payable or ITC reversal)	₹1,000 (₹500 CGST + ₹500 SGST)	Interest under Sec 50 still applies on unpaid tax; waiver on interest itself subject to specific notification terms
IGST-only taxpayers	₹500 / ₹1,000 (IGST equivalent)	Same as above

The standard late fee without the cap: ₹200 per day per Act (CGST + SGST), subject to a maximum of ₹10,000 per return under Section 47(2). For a return 400 days overdue, that is ₹10,000 CGST + ₹10,000 SGST = ₹20,000 per return — reduced to ₹1,000 under the amnesty. On a client with 18 pending returns, the saving is material.

Always pull the official gazette notification from cbic-gst.gov.in/GST-Notifications to confirm the exact cap figures before filing, as the CBIC occasionally amends notification schedules before a scheme closes.

---

Pre-Filing Checklist: Identify Every Pending Return

Before touching the GST portal, complete this offline review:

Step 1 — Run the pending-return register Pull a list of all GSTINs you manage. For each GSTIN, note:

• Tax periods for which GSTR-3B has not been filed (typically visible under Services → Returns → Returns Dashboard on the portal)
• Whether any return has a nil-liability position (saves the higher cap)
• Whether tax was actually paid via challan but the return was never submitted (common cause of mismatch)

Step 2 — Reconcile GSTR-2A/2B against purchase registers Pending GSTR-3B often means ITC claims in Table 4 are also stuck. Filing now locks in your ITC position. Under Section 16(4) of the CGST Act (as amended), the outer time limit for claiming ITC for a financial year is the earlier of the due date for furnishing the September return of the following year or the date of filing the annual return. Verify this limit has not already lapsed before claiming old ITC in a belated return.

Step 3 — Compute interest liability independently Even if the late fee is capped, interest under Section 50(1) runs at 18% per annum on the net tax liability from the due date to the date of payment. Calculate this per return so the client is not surprised at the challan stage.

Step 4 — Check GSTR-1 filing status GSTR-3B cannot be filed if the corresponding GSTR-1 for that period remains unfiled (the portal enforces this sequencing). File GSTR-1 first for any period where it is pending.

---

Portal Walkthrough: Services → Returns → Track Return Status for GSTR-3B

This is the step that most blog posts skip. Here is the exact navigation on gst.gov.in:

Checking what is pending:

1. Log in to the GST portal with the taxpayer's credentials.
2. Navigate to Services → Returns → Track Return Status.
3. Select Return Type: GSTR-3B and the relevant financial year. The portal displays a colour-coded status: Filed, Submitted (not filed), or Not Filed.
4. Download the summary as a PDF — this becomes your working paper for the amnesty exercise.

Filing a pending GSTR-3B:

1. Go to Services → Returns → Returns Dashboard.
2. Select the Financial Year and Tax Period for the oldest unfiled return. (File chronologically — the portal may block later-period returns if earlier ones are pending.)
3. Click GSTR-3B → Prepare Online (or Prepare Offline if you are uploading via JSON from Tally Prime or Zoho Books).
4. In Table 3.1 — enter outward supply details. For a nil return, all values remain zero. Confirm by clicking the zero-rated, exempted, and non-GST supplies tables as well.
5. In Table 4 — enter eligible ITC. If ITC is being claimed for a backdated period, re-confirm the Section 16(4) eligibility position before entering.
6. In Table 6.1 — confirm the net tax payable after ITC set-off. If tax is outstanding, the portal will prompt you to create a challan before proceeding.
7. Pay the challan under Services → Payments → Create Challan (CGST, SGST, IGST, and Cess heads separately). Interest computed under Section 50 must be added manually to the challan — the portal does not auto-calculate it for backdated returns.
8. Return to the GSTR-3B draft, click Preview Draft, verify the numbers, then Submit.
9. After submission (which freezes the data), click File GSTR-3B and authenticate using DSC or EVC.
10. Download the filed return acknowledgement (ARN) immediately and attach it to the client file.

Repeat the cycle for each pending tax period in ascending chronological order.

---

SPL-01: When You Need a Formal Waiver Application

If the amnesty scheme requires a formal application for waiver of interest (as distinct from the automatic late-fee cap), the prescribed form is GST SPL-01 (introduced under the earlier GSTR amnesty framework and potentially extended under the 2026 scheme). SPL-01 is filed under Rule 164 of the CGST Rules through the portal under Services → User Services → My Applications.

Key points on SPL-01:

• It is applicable where a specific waiver of interest (not just late fee) is being claimed and the notification so requires.
• The application must reference the notification number under which relief is claimed.
• Supporting documents: copies of filed returns, challan receipts for principal tax paid, and a computation sheet showing the interest waived.
• Once SPL-01 is accepted by the proper officer, the waived interest demand is dropped from the taxpayer's liability register on the portal.

Check the exact applicability of SPL-01 under Notification 14/2026 terms — not all amnesty notifications require a separate SPL-01 filing; some provide automatic relief on filing the return.

---

Common Errors That Blow the Amnesty Window

Working through dozens of amnesty filings in earlier schemes, these are the failure points:

• Filing GSTR-3B without filing GSTR-1 first — portal rejects it silently. Always file GSTR-1, wait for processing (usually same day), then file GSTR-3B.
• Ignoring interest in the challan — the late fee cap does not cap interest. If interest is not paid, the filing is complete but the liability stays open, inviting a notice under Section 73.
• Filing non-nil returns as nil — if the client had actual outward supplies but you file nil to save the lower cap, that is a misstatement under Section 122(1) and attracts a penalty of ₹10,000 or the amount of tax evaded, whichever is higher.
• Overlooking GSTR-1 amendments — if the client has already filed GSTR-1 with incorrect values and the window for GSTR-1A has passed, any amendment must be carried through Table 9 (amendments) of a subsequent GSTR-1. Reconcile before GSTR-3B submission.
• Missing the portal cut-off time — the GST portal has historically imposed filing cut-offs at midnight IST on deadline days. File by 28 September to avoid last-minute portal congestion.

Want to test your readiness on GST compliance concepts before the deadline? Take the SuperAccountant GST quiz — it covers GSTR reconciliation, ITC conditions, and Section 16 eligibility in 15 minutes.

---

Priority Action List for the Next 30 Days

Week	Action
Week 1 (now)	Extract pending-return register for all GSTINs; flag nil vs non-nil
Week 2	File all GSTR-1 returns that are blocking GSTR-3B submission
Week 3	Compute interest liability; prepare challan for each non-nil return
Week 4	File GSTR-3B returns in chronological order; download ARNs
By 28 Sept	Final check — track return status portal sweep; submit SPL-01 if required

The cost of inaction: one non-nil return outstanding for 500 days without the amnesty attracts ₹10,000 CGST + ₹10,000 SGST in late fees plus 18% interest on the unpaid tax. Across a client portfolio of even five such returns, that is ₹1 lakh in late fees alone — fees that a 30-minute portal session eliminates before 30 September 2026.

Monitor the official CBIC notification gazette and circulars at cbic-gst.gov.in as the deadline approaches — the CBIC has in the past issued clarificatory circulars in the final weeks of amnesty schemes.

---

Sharpen your edge with SuperAccountant's next live cohort — small batches, real client workpapers, taught by partners. Details and seats at https://app.superaccountant.in/en/cohort.