GST Amendment Deadline for FY 2024–25: What You Can Fix Before 30th November 2025

📚 Introduction:

As the financial year 2024–25 progresses, businesses must keep one critical compliance date in mind:
📅 30th November 2025 — the last date to rectify, amend, or add entries related to GST returns for FY 2024–25.

In this blog, we’ll break down:

• What changes are allowed in GSTR-1 and GSTR-3B
  
  
• What’s not allowed
  
  
• How to avoid mismatches with Income Tax Returns
  
  
• Pro tips for smooth GST reconciliation
  
  

✅ What Amendments Are Allowed Till 30th November 2025?

🧾 1. GSTR-1 (Outward Supplies Return)

GSTR-1 allows invoice-level corrections, including:

🔹 Amendments you can make:

• Wrong invoice number, date, or taxable value
  
  
• Wrong GSTIN of the buyer
  
  
• Wrong tax rate applied
  
  
• Corrections in export invoices like port code, shipping bill no., or value
  
  

🔹 Additions you can make:

• Completely missed invoices from FY 2024–25
  
  
• Missed export or SEZ supplies
  
  
• Omitted credit/debit notes
  
  

💡 Tip: Use the correct financial year while adding missing invoices. Even if added later, they should reflect in books of FY 2024–25.

🧾 2. GSTR-3B (Summary Return)

While you can’t amend a specific month’s 3B once filed, you can:

• Report missed outward supply turnover (e.g., zero-rated exports)
  
  
• Adjust Input Tax Credit (ITC) if claimed short or excess
  
  
• Declare liabilities or reverse ITC in the current month’s return
  
  

💡 Tip: Make proper working notes to match adjusted entries with books & ITR.

❌ What’s Not Allowed After 30th November 2025

1. ❌ Amendments related to FY 2023–24 or earlier
   
   
2. ❌ Claiming ITC for FY 2024–25 invoices after 30th Nov 2025
   
   
3. ❌ Adding invoices to GSTR-1 without correct financial year tagging
   
   
4. ❌ Editing monthly 3B retroactively – changes only via future months
   
   

🧮 Example Scenario

Let’s say your business received GST registration in Feb 2025 but had export turnover of ₹20 lakhs in Apr–Jan.

You can:

• Add these zero-rated export invoices now in June/July 2025 GSTR-1
  
  
• Report the amount under Table 3.1(b) of GSTR-3B
  
  

This ensures alignment with your ITR, avoiding mismatch notices.