Interest Collection and Related Enhancements in GSTR-3B
GSTN Advisory on Interest Collection and Related Enhancements in GSTR-3B
(Applicable from January 2026 Tax Period Onwards)
GSTN hereby informs taxpayers that with effect from the January 2026 tax period, the following enhancements have been implemented in the filing of GSTR-3B to ensure accurate interest computation and improved reporting of tax liabilities.
1. Enhancement in Interest Computation in GSTR-3B
From the January 2026 tax period onwards, the interest calculation in Table 5.1 of GSTR-3B has been enhanced on the GST Portal. The system will now provide the benefit of the minimum cash balance available in the Electronic Cash Ledger (ECL) of the taxpayer from the due date of return filing till the date of tax payment (offset), in line with the proviso to Rule 88B(1) of the CGST Rules, 2017.
This change shall apply to delayed GSTR-3B returns for January 2026, for which interest will be auto-populated in the GSTR-3B of February 2026.
Revised Interest Computation Formula
Interest = (Net Tax Liability – Minimum Cash Balance in ECL from due date to date of debit)
× (Number of days of delay ÷ 365)
× Applicable Interest Rate
2. System-Computed Interest in Table 5.1
- Interest auto-populated in Table 5.1 of GSTR-3B shall be non-editable downwards.
- Taxpayers will not be allowed to reduce the system-computed interest amount.
- The auto-populated interest represents the minimum interest payable.
- Taxpayers are required to self-assess their actual interest liability and may increase the interest amount, wherever applicable.
3. Auto-Population of Tax Liability Break-Up Table in GSTR-3B
The Tax Liability Break-Up Table captures tax pertaining to supplies of previous tax periods that are reported in the current period and paid through the current GSTR-3B.
From the January 2026 tax period onwards:
- The GST Portal will auto-populate the Tax Liability Break-Up Table based on the document date of supplies reported in GSTR-1 / GSTR-1A / IFF of earlier periods.
- This auto-population will occur where the corresponding tax liability is discharged in the current GSTR-3B.
Navigation Path:
Login → GSTR-3B Dashboard → Table 6.1 (Payment of Tax) → Tax Liability Break-Up
4. Update in Table 6.1 – Suggestive Cross-Utilisation of ITC
From the January 2026 tax period onwards:
- Once IGST ITC is fully utilised, the GST Portal will allow payment of IGST liability using available CGST and SGST ITC in any sequence, as per applicable rules.
5. Collection of Interest through GSTR-10 (Final Return)
For cancelled taxpayers, where the last applicable GSTR-3B is filed after the due date, the applicable interest on such delayed filing shall be:
- Levied and collected through the Final Return (GSTR-10).
Objective of the Enhancement
These enhancements are aimed at:
- Ensuring accurate reporting of tax liabilities
- Aligning interest computation with the proviso to Section 50 of the CGST Act, 2017
- Reducing manual errors and improving compliance ease
Key Points to Note
- Auto-populated values are suggestive in nature.
- Taxpayers may modify values upwards based on their own records and calculations, wherever required.
Disclaimer
This advisory is issued for educational and informational purposes only and does not constitute legal advice. Taxpayers are advised to refer to the relevant provisions of the CGST Act, CGST Rules, and applicable notifications for statutory compliance and legal interpretation.
