Quick answer
IMS lets a recipient act on supplier documents before their effect is reflected through the GST return ecosystem. Use Accept, Reject and Pending only after matching the invoice with books and the actual supply.
This guide explains the issue from the beginning, shows the checks to perform and gives a practical action plan. You do not need tax knowledge before reading it. Important terms are explained below.
Who should read this guide
This guide is useful for individuals, freelancers, professionals, shopkeepers and small businesses dealing with this issue for the first time. It also gives finance teams a simple checklist before they share the case with a tax professional.
Important terms in simple language
| Term | Simple meaning |
|---|---|
| GSTR-1 | The return or statement that reports outward supplies and invoice details. |
| GSTR-3B | The summary return used to report tax liability, input tax credit and tax payment. |
| GSTR-2B | A statement of supplier-reported documents used while reviewing input tax credit. |
| ITC | Input tax credit. This is eligible GST paid on business purchases that may be used against output GST, subject to conditions. |
What you will learn
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Accept
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Reject
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Pending
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No action and cut off
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Step by step action plan
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Practical example and common mistakes
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Documents to keep ready and frequently asked questions
Action overview
| Action | Use when |
|---|---|
| Accept | Document matches books and supply |
| Reject | Wrong or invalid document |
| Pending | Verification is incomplete and system permits deferral |
| No action | Understand deemed or system treatment before cut off |
Use this table as a starting point. The final treatment can change with the taxpayer category, transaction facts, notification or portal status.
Accept
Use when the supplier document, GSTIN, value, tax and transaction match the recipient record.
Review accept at invoice level. Match GSTIN, invoice number, date, taxable value, tax rate and tax heads with the books. Total-level matching can hide a wrong recipient, duplicate invoice or credit note reported in another period.
Reject
Use for a document that does not belong to the recipient or contains an error that should not flow through as valid credit.
Review reject at invoice level. Match GSTIN, invoice number, date, taxable value, tax rate and tax heads with the books. Total-level matching can hide a wrong recipient, duplicate invoice or credit note reported in another period.
Pending
Use where action is genuinely deferred under the system rules, such as when commercial or document verification is incomplete.
Review pending at invoice level. Match GSTIN, invoice number, date, taxable value, tax rate and tax heads with the books. Total-level matching can hide a wrong recipient, duplicate invoice or credit note reported in another period.
No action and cut off
Understand the system treatment of records on which no action is taken and complete review before GSTR-2B and return preparation.
Review no action and cut off at invoice level. Match GSTIN, invoice number, date, taxable value, tax rate and tax heads with the books. Total-level matching can hide a wrong recipient, duplicate invoice or credit note reported in another period.
How to check the issue correctly
Download the relevant returns and compare them with the sales or purchase register invoice by invoice. Create four groups: matched, missing from the portal, missing from books and present with different values. This is more useful than comparing only monthly totals.
For every unmatched item, record the GSTIN, invoice number, date, taxable value, GST amount, reason and proposed correction period. Review ITC eligibility separately because an invoice appearing in GSTR-2B does not automatically make the credit eligible.
Step by step action plan
1. Review accept and collect the supporting record.
2. Review reject and collect the supporting record.
3. Review pending and collect the supporting record.
4. Review no action and cut off and collect the supporting record.
Practical example
A supplier uploads an invoice with the correct value but the wrong recipient GSTIN. The recipient should not accept it merely because the supplier name is familiar; correction must be coordinated.
The lesson is to trace the issue before correcting it. Start with the source record, calculate the exact effect and keep proof of the action taken. If the correction changes tax, credit, refund or statutory status, recheck the portal after processing rather than assuming submission completed the matter.
Documents to keep ready
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Sales and purchase registers
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Tax invoices and credit or debit notes
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GSTR-1, GSTR-3B and GSTR-2B downloads
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IMS action report where relevant
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Electronic liability, credit and cash ledgers
Use clear filenames that include the year, form or statement and date. Keep the final filed version separately from drafts so the wrong document is not used later.
Common mistakes and why they matter
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Ignoring accept when deciding the next step
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Ignoring reject when deciding the next step
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Ignoring pending when deciding the next step
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Ignoring no action and cut off when deciding the next step
These mistakes usually happen when the final amount is checked without tracing the supporting record. Confirm the year, form, source data and portal status before filing a correction or response.
When to get professional help
Get help when the difference affects tax payment, a notice or suspension is involved, prior-year amendment time is closing, or several GSTINs or periods are affected.
Professional review is especially useful when the case affects more than one return, another person must correct data, or the response period is short. Share the full communication and supporting records rather than only a screenshot of the final amount.
Final thoughts
The safest approach is simple. Identify the correct year, compare the official portal record with your documents, calculate the exact difference and use the remedy designed for that difference. Save every acknowledgement and check the status again after processing.
Taxplan can reconcile IMS, GSTR-2B and the purchase register before filing.
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Taxplan can reconcile IMS, GSTR-2B and the purchase register before filing.
Official sources and references
Editorial note Recheck deadline-sensitive details against the latest notification and portal guidance before publication. This article provides general information and does not replace advice based on a taxpayer’s documents and facts.
Frequently Asked Questions
Can this be fixed online?
Many steps are available online, but the correct route depends on the portal status, time limit and supporting records.
Should I file again immediately?
No. First identify whether the original filing, third-party data or departmental processing is wrong.
When should I take professional help?
Get help when tax, a notice, an expired deadline, multiple years or conflicting records are involved.
Will the portal fix the issue automatically?
Do not depend on an automatic correction. Check the processed status, relevant statement and acknowledgement after the expected processing time.
Should I keep records after the matter is resolved?
Yes. Keep the return, working, communication, evidence and final acknowledgement for the applicable record-retention period.
