Key important changes in GST Return – GSTR-1, GSTR-3B

🧠 Krishna-Arjun Dialogue Summary:

Arjun: Krishna, I hear changes are coming to GST returns. What should taxpayers know?

Krishna: Yes, Arjuna. Big changes are coming. From July 2025, GSTR-3B’s outward tax liability will be auto-filled based on GSTR-1/IFF and cannot be edited.

Arjun: What if there’s a mistake in GSTR-1?

Krishna: Then file GSTR-1A (between GSTR-1 and GSTR-3B) to correct or add invoices. It will update GSTR-3B automatically.

Arjun: Any updates in GSTR-1?

Krishna: Yes. From May 2025:

  • B2B & B2C data must be entered separately in Table 12.
  • HSN codes:
    • Mandatory for B2B.
    • Optional for B2C if turnover < ₹5 crore.

Arjun: What’s the key takeaway?

Krishna: Timely, accurate filing is crucial. Understand the rules, correct errors via GSTR-1A, and ensure proper HSN reporting to avoid penalties or mismatch.

🧾 GST Return Filing Changes (Effective May & July 2025)

🔹 Key Changes in GSTR-3B (From July 2025)

  • Auto-Populated Liability will become non-editable.
  • Data from GSTR-1/IFF will directly flow into GSTR-3B without manual changes.
  • Error correction: Use GSTR-1A (after GSTR-1, before GSTR-3B) to rectify mistakes in outward supplies.

🔹 Key Changes in GSTR-1 (From May 2025)

  • Table 12 split into:
    • B2B Supplies (with mandatory HSN codes).
    • B2C Supplies (HSN codes optional if turnover < ₹5 crore in previous FY).
  • Accurate bifurcation between B2B and B2C is required for correct reporting.
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