Between the 14th and the 20th of the month, accounts teams cross-check purchase ledgers against the portal download. A frequent disruption during this window is finding an invoice marked as rejected, or missing entirely because the supplier ran into portal upload errors. When an invoice has rejected status, the input tax credit attached to it disappears from your auto-populated GSTR-3B return.
Resolving this issue requires knowing whether the rejection occurred on your side inside IMS, or on the supplier side during their GSTR-1 return filing.
Two root causes of rejected invoices in GST
The term rejected invoice refers to two separate technical events on the GST portal:
- Recipient rejection in IMS: The supplier filed the invoice correctly, but your accounts team clicked Reject on the IMS dashboard. This action excludes the invoice from your eligible GSTR-2B statement.
- Supplier portal upload rejection: The supplier prepared a JSON batch or Excel offline file, but the GST system rejected specific invoice rows due to schema validation errors. The supplier never filed the record successfully, so it never entered the tax network.
Both situations produce the same practical result: zero credit auto-populates in Table 4 of GSTR-3B. To understand how inward records transfer across statements, review our reference on GSTR-3B meaning, format, and how GSTR-2B feeds it.
How to fix recipient rejections on the IMS dashboard
The GST Network launched the Invoice Management System to give recipients control over inward supplies. Under the official GSTN FAQ on IMS, you can accept, reject, or keep pending any invoice saved or filed by suppliers in GSTR-1, GSTR-1A, or the Invoice Furnishing Facility (IFF).
If an accountant in your office clicked Reject by mistake, the credit is removed from your draft GSTR-2B. Fortunately, actions taken in IMS are not permanent until you file your summary return.
Step-by-step correction in IMS
- Log in to the GST Portal and open the menu: Services → Returns → Invoice Management System (IMS) Dashboard.
- Select the relevant financial year and return period, then click Search.
- Open the Inward Supplies tile and filter records by action status: select Rejected.
- Locate the specific invoice using the supplier GSTIN and invoice number.
- Click the action dropdown and change the selection from Reject to Accept (or Pending if you are holding it for commercial verification).
- Save the updated record.
- Return to the main IMS screen and click the button labelled Recompute GSTR-2B.
The system recalculates your statement. When you open your GSTR-3B return, Table 4(A)(5) will now include the tax amount from the restored invoice.
Common mistake: Changing the action to accepted in IMS but forgetting to click Recompute GSTR-2B. If you skip the recomputation step, GSTR-3B continues to display the old total that excluded the rejected invoice.
Why supplier invoices fail portal validation during upload
When an invoice is absent from both GSTR-2B and IMS, the supplier often claims they uploaded it. In reality, their offline tool or JSON batch failed portal validation checks. When a bulk upload fails, the portal generates an error file containing specific error codes.
Here are the common validation errors suppliers encounter:
| Error condition | Why the portal rejects it | How the supplier fixes it |
|---|---|---|
| Duplicate invoice number | Rule 46(b) requires invoice numbers to be unique for a financial year. Repeating an invoice number in the same financial year causes the GST portal to reject that row and generate an error entry in the downloaded error report. | Cancel the duplicate or issue a fresh serial number. Check our guide on duplicate invoices in GSTR-2B reconciliation. |
| Invalid recipient GSTIN | The buyer GSTIN has a typo, invalid checksum, or was cancelled before the invoice date. | Verify the 15-character GSTIN against the buyer registration certificate and correct the master data. |
| Place of supply mismatch | Inter-state supply reported with local CGST and SGST, or intra-state supply reported with IGST. | Correct the POS state code and tax heads in the accounting software before regenerating JSON. |
| Special characters in invoice number | Invoice numbers containing spaces or symbols other than slashes and hyphens violate Rule 46(b). | Remove spaces, periods, or illegal characters and re-upload the record. |
When an error occurs, the supplier must log in to the portal, navigate to GSTR-1 → Uploaded by Taxpayer, download the Error Report, review the row-level message, correct the fields in their software, and upload the fixed data.
Fixing rejected invoices after GSTR-3B is filed
What happens if your team filed GSTR-3B while an invoice remained rejected? Once GSTR-3B is filed, that return period is locked. You cannot revise a filed GSTR-3B return.
Under Section 16(2)(aa) of the CGST Act and Notification 40/2021-Central Tax amending Rule 36(4), no registered taxpayer can take credit unless the invoice is communicated in Form GSTR-2B.
If you genuinely rejected an invoice due to commercial disputes (such as defective goods, incorrect pricing, or missing delivery), do not accept it. Follow this sequence:
- Inform the vendor in writing about the rejection and specify the discrepancy.
- If the supplier made a clerical error in tax rates or values, request them to amend the invoice via Table 9A in their next GSTR-1, or file Form GSTR-1A before their 3B deadline.
- If the supply was cancelled, request a formal credit note under Section 34 of the CGST Act.
- Once the supplier files the amendment or credit note, the updated record appears on your IMS dashboard in the subsequent month, allowing you to accept it cleanly.
Notice risk: Never attempt to bypass a rejected status by typing extra figures into Table 4(A)(5) of GSTR-3B. Claiming credit above GSTR-2B triggers automated intimations under Rule 88D. For reply procedures, see our guide to DRC-01C mismatch notice replies.
Worked example: fixing an accidental IMS rejection
Consider a practical scenario involving an electrical equipment distributor, Zenith Electricals Private Limited, and its supplier, Orient Cables Limited.
In September 2026, Orient Cables issued invoice OC/26-27/088 for ₹1,00,000 plus ₹18,000 IGST. While reviewing records on 16 October 2026, an accounts assistant at Zenith Electricals clicked Reject by mistake on the IMS screen, believing the shipment had not arrived. On 18 October, the storekeeper confirmed goods receipt.
| Stage | IMS action | GSTR-2B Table 4(A)(5) | Compliance status |
|---|---|---|---|
| Initial supplier filing | No action taken | ₹18,000 (draft) | Eligible |
| Accidental rejection on 16 Oct | Rejected | ₹0 | Excluded from 2B |
| Correction on 18 Oct | Accepted | ₹0 (before recompute) | Pending refresh |
| After clicking Recompute 2B | Accepted | ₹18,000 | Restored for 3B |
If Zenith Electricals had filed GSTR-3B without recomputing, it would have lost ₹18,000 of legitimate ITC for September. By opening IMS, resetting the status to Accepted, and clicking Recompute GSTR-2B, the full credit of ₹18,000 was restored to Table 4(A)(5) without manual adjustments or audit alerts.
Vendor communication template for rejected upload errors
When an invoice is missing from GSTR-2B due to supplier upload validation errors, send this exact notification to their accounts department:
Related guides
- GSTR-2B reconciliation: complete guide to ITC matching
- Invoices in GSTR-2B but not in my books: how to investigate them
- GSTR-2B Table 4D mismatch: unmatched invoices and fixes
- GSTR-2B tax amount mismatch: why the tax differs and how to fix it
Frequently asked questions
What happens when an invoice is rejected in the Invoice Management System?
When you reject an invoice in IMS, the GST portal removes that document from eligible ITC in your GSTR-2B. The credit does not flow into Table 4(A)(5) of GSTR-3B, preventing you from claiming tax on that bill for the period.
Can I change an invoice from rejected to accepted in IMS?
Yes. Before filing GSTR-3B for the tax period, you can open IMS, locate the rejected invoice, and switch your action to accepted. You must then click Recompute GSTR-2B on the dashboard so the portal updates your return figures.
Why did my supplier's invoice fail portal validation during upload?
Supplier JSON files fail portal validation due to common data errors: duplicate invoice numbers in the same financial year, invalid recipient GSTINs, incorrect place of supply codes, or special characters violating Rule 46(b).
Can I claim ITC in GSTR-3B if an invoice is marked rejected in IMS?
No. Under Section 16(2)(aa) and Rule 36(4), input tax credit is restricted to invoices communicated in GSTR-2B. Claiming credit for a rejected invoice by manually increasing Table 4 turns the field red and invites a DRC-01C mismatch notice.
Check your own GSTR-2B
Reconcile your purchase register against GSTR-2B before filing GSTR-3B. Catch rejected invoices, supplier omissions, and IMS status issues in minutes. Your GSTR-2B and purchase register files are read in your browser and never uploaded to any server.
Last checked: 14 October 2026. Sources: GSTN Advisory and FAQs on IMS, CBIC Tax Information Portal, CBIC Notification 40/2021-CT.