GST WEEKLY UPDATE :3/2026-27 (19.04.2026) By CA Vipul Khandhar

-By CA Vipul Khandahar

1. Re-computation of Interest under Table 5.1 of GSTR-3B: A Critical Analysis of the Latest GSTN Advisory:

The Goods and Services Tax Network (GSTN) has recently issued an important advisory addressing discrepancies in system-computed interest under Table 5.1 of Form GSTR-3B, particularly for the tax period of February 2026. This article examines the legal framework, the technical glitch identified, and the procedural remedy provided to taxpayers, along with its practical implications.

1. Introduction: Interest liability under GST has been a subject of continuous litigation and interpretational challenges, particularly concerning delayed filing of returns and payment of tax. The GST portal facilitates compliance by auto-computing interest under Table 5.1 of GSTR-3B. However, reliance on system-generated figures necessitates accuracy and legal conformity.

The recent GSTN advisory dated 6th March 2026 highlights a system-related anomaly and provides a corrective mechanism, marking a significant development in compliance facilitation.

2. Mechanism of Interest Computation in GSTR-3B: As per the GST framework:

• Interest is auto-calculated by the GST portal based on:
  • Tax liability discharged
  • Break-up of liability furnished in the return
• Such interest is:
  • Auto-populated in Table 5.1 of the subsequent GSTR-3B
  • Similar in treatment to late fees

Taxpayers can verify the detailed computation through the system-generated GSTR-3B PDF available on the GST portal. 

3. The Technical Glitch Identified: The advisory acknowledges that for certain taxpayers:

• Interest for February 2026, reflected in March 2026 GSTR-3B, was incorrectly computed
• The system failed to provide the benefit of:
  • Minimum balance available in the Electronic Cash Ledger

This is contrary to the proviso to Rule 88B(1) of the CGST Rules, 2017, which mandates that interest should be calculated only on the net cash liability after considering available balance.

4. Legal Position: Rule 88B(1) and Interest Computation: Rule 88B(1) clearly provides that:

• Interest is payable only on that portion of tax which is paid through cash
• Available balance in Electronic Cash Ledger should reduce interest burden

Judicial precedents have consistently supported the principle that: Interest cannot be levied on amounts already available with the Government. Thus, any system computation ignoring such balance is legally unsustainable.

5. Corrective Mechanism Provided by GSTN: To address the issue, GSTN has introduced: “Re-compute Interest” Functionality: Taxpayers can:

1. Navigate to Table 5.1 in GSTR-3B
2. Click on “RE-COMPUTE INTEREST”
3. System recalculates interest based on updated parameters
4. Revised figures reflect in system-generated PDF

6. Important Compliance Instructions:

• Taxpayers must:
  • Refer to the updated system-generated PDF
  • Manually edit Table 5.1 if required
• However:
  • Manually entered interest cannot be less than recomputed interest

This restriction ensures minimum compliance while allowing correction.

7. Practical Implications for Taxpayers
8. Increased Responsibility

Taxpayers cannot blindly rely on auto-populated values; verification is essential.

1. Risk of Excess Payment: Without re-computation, taxpayers may:

• Pay excess interest
• Face working capital blockage

1. Compliance Vigilance: Professionals must:

• Reconcile electronic cash ledger balances
• Verify system-generated PDFs before filing

8. Critical Observations

• The advisory reflects GSTN’s responsive approach, but also highlights:
  • Dependence on system accuracy
  • Need for stronger validation controls
• The restriction on manual reduction (below recomputed value) may:
  • Lead to disputes if recomputed value is still incorrect
  • Require further grievance mechanisms

9. Conclusion

The GSTN advisory on re-computation of interest is a welcome step towards ensuring fair and accurate tax compliance. However, it reinforces a crucial principle: 

System-generated values are facilitative, not conclusive.

Taxpayers and professionals must exercise due diligence, especially in interest computation, to avoid unnecessary financial outflows and future litigation.

Author’s Note

This development underscores the evolving nature of GST compliance, where technology and law must align seamlessly. Continuous monitoring and professional oversight remain indispensable.

2. Theocratical cross-utilization point completely deleted: following facilities has been withdrawn:

“3. Update in Table 6.1 – Suggestive Cross-Utilization of ITC: From January-2026 period onwards, once the available IGST ITC has been fully exhausted, the GST Portal will allow to pay IGST liability in Table 6.1 of GSTR-3B using available CGST and SGST ITC in any sequence”,

The GST Portal has silently removed the cross-utilisation facility of Input Tax Credit (ITC) from its earlier advisory—which has been allowing SGST adjustment against IGST before exhausting CGST, deviating from Section 49 rules.

3. GST UPDATE – IMPORTANT NOTIFICATION: Extension of Time Limit for Filing Appeal before GST Appellate Tribunal: Issued by: Finance Department, Government of Maharashtra:

Background: Under GST law, appeals against orders are required to be filed before the GST Appellate Tribunal within prescribed timelines. Considering practical difficulties and pending constitution/operational aspects, the Government has issued a clarification regarding timelines.

 Notification Issued: The Government of Maharashtra has notified as under:

• 30th June 2026 is the last date to file appeals before the Appellate Tribunal
• Applicable where the order is communicated on or before 1st April 2026

3. Timeline for Future Orders: For orders communicated on or after 1st April 2026:

• Appeal shall be filed within 3 months from the date of communication of order

4. Legal Reference: Notification issued under:

• Section 112 of Maharashtra GST Act, 2017

5. Action to be Taken by Taxpayers

• Review all pending appealable orders
• Identify cases eligible for extended timeline
• Ensure filing of appeal on or before 30 June 2026

Disclaimer:

This publication contains information for general guidance only. It is not intended to address the circumstances of any particular individual or entity. Although the best of endeavour has been made to provide the provisions in a simpler and accurate form, there is no substitute to detailed research with regard to the specific situation of a particular individual or entity. We do not accept any responsibility for loss incurred by any person for acting or refraining to act as a result of any matter in this publication.