The Invoice Management System (IMS) is a newly introduced feature on the GST Portal that helps businesses manage and verify the invoices shared by their suppliers. Its main goal is to ensure that you, as a recipient, only claim genuine Input Tax Credit (ITC).
Launched on 1st October, IMS gives you more control over which invoices should be accepted, rejected, or kept pending before they appear in your GSTR-2B and GSTR-3B returns.
✅ Why IMS is Important for You
In simple terms, IMS:
- Prevents wrong ITC claims.
- Allows you to spot and resolve invoice mismatches.
- Keeps a proper record trail of your purchase invoices.
- Saves time spent chasing suppliers for corrections.
🔍 How Does IMS Work?
Whenever your supplier saves or files invoices in GSTR-1, IFF, or GSTR-1A:
- Those invoices appear on your IMS Dashboard.
- You can take one of three actions:
- Accept – confirms the invoice is correct.
- Reject – tells the system not to include the invoice in your return.
- Keep Pending – delays your ITC claim decision.
What happens if you do nothing?
- If you take no action, the invoice is treated as “Deemed Accepted” and will automatically be added to your GSTR-2B.
📅 Key Deadlines
| Activity | Deadline |
|---|---|
| Supplier saves invoice in GSTR-1/IFF | Invoice appears on your IMS dashboard |
| You take action (accept/reject/pending) | Anytime before filing your GSTR-3B |
| Draft GSTR-2B available | On the 14th of next month |
| Recompute GSTR-2B (if action taken after 14th) | Mandatory |
💡 What Each Action Means
| Action | Impact on GSTR-2B | Impact on GSTR-3B |
|---|---|---|
| Accept | Added to “ITC Available” | Auto-populated |
| Reject | Added to “ITC Rejected” | Not included |
| Pending | Not included | Not included |
⚠️ You cannot keep the following records as “Pending”:
- Original Credit Notes
- Upward amendments of Credit Notes
- Some downward amendments after acceptance or rejection
🧾 Special Notes for QRMP Taxpayers
- IMS will reflect invoices saved/ filed in IFF.
- GSTR-2B is generated quarterly (not monthly).
- No GSTR-2B for M1 and M2 months in a quarter.
🔄 Flow of Information
- Supplier saves invoice → Your IMS dashboard shows it.
- You take action → Accepted invoices go to GSTR-2B.
- Filed GSTR-1 by supplier → Final invoices populate GSTR-2B.
- You file GSTR-3B → Accepted invoices included for ITC.
Important: GSTR-2B for a month is generated only after you file the previous month’s GSTR-3B.
🚨 10 Key Takeaways
- No action = Deemed Accepted
- GSTR-2B must be recomputed if action is taken after 14th
- RCM supplies and ineligible ITC do not appear in IMS
- Action possible from saving stage, but reflected post-filing
- Accepted/rejected invoices disappear from IMS after filing GSTR-3B
- Pending invoices stay on IMS for future decision
- Must file GSTR-3B before acting on amended invoices
- Supplier’s amendments reset invoice status in IMS
- GSTR-2B generation is sequential
- Rejected credit notes may increase supplier’s tax liability
📌 Final Thoughts
The new IMS tool is a taxpayer-friendly system that enhances transparency, accuracy, and ease in claiming ITC under GST. It does not increase compliance burden, as even if you take no action, the system assumes the invoice is accepted.
However, smart businesses will review invoices actively, reject incorrect ones, and ensure clean ITC claims, reducing future GST issues.
✅ Tip: Make it a habit to check your IMS dashboard regularly and act on invoices well before filing GSTR-3B.
Read How to Handle Mistakenly Rejected Records on the Invoice Management System (IMS) under GST