A practical walk-through of the latest GST return changes and how growing businesses should adapt their monthly process.
The GST Council's 2025–26 notifications brought several structural changes to the return filing process that small and medium businesses need to act on before the next quarterly cycle. Most of the changes affect GSTR-3B reconciliation, input tax credit (ITC) claims, and e-invoicing thresholds.
Key changes for 2026
- E-invoicing now mandatory for businesses with aggregate turnover above ₹5 crore (reduced from ₹10 crore)
- GSTR-2B auto-population now blocks ITC claims not appearing in the supplier's GSTR-1
- Late fee structure revised — ₹50/day for regular returns, ₹20/day for nil returns (capped at 0.04% of turnover)
- Annual return threshold for exemption raised to ₹2 crore from ₹1.5 crore
What this means for your monthly process
The most immediate impact is on ITC reconciliation. If your suppliers are not filing GSTR-1 on time, the corresponding credit simply will not appear in your GSTR-2B — and from FY 2025-26, claiming that credit in GSTR-3B without GSTR-2B backing can trigger a demand notice.
Businesses should begin chasing supplier compliance proactively rather than waiting for month-end. A simple shared tracker listing each vendor's GSTIN and their last GSTR-1 filing date is often enough to eliminate most ITC mismatches before they become problems.
"If your supplier doesn't file on time, it's your ITC at risk — not theirs. The discipline now needs to sit on your side of the relationship."
Action steps before your next return
- Verify e-invoicing applicability against your FY 2024-25 aggregate turnover
- Run a GSTR-2B vs purchase register reconciliation for the last three months
- Contact any supplier whose GSTR-1 shows gaps of two months or more
- Review your late fee exposure if any returns were filed after the 20th
If you are unsure whether these changes apply to your business structure — particularly if you operate across multiple GSTINs or have a mix of B2B and B2C supplies — the safest step is a short compliance review before the quarter closes.
