How to Accept or Reject Invoices in GST IMS (India)

To accept or reject invoices in the GST Invoice Management System (IMS), open the IMS dashboard on the GST portal, review every inbound invoice, debit note, and credit note your suppliers report, then mark each one Accept, Reject, or Keep Pending before you file GSTR-3B. This single set of actions decides what enters your auto-drafted GSTR-2B and the input tax credit (ITC) the portal pre-fills in GSTR-3B. IMS is free, takes most businesses well under one working day each month, and went live on 14 October 2024 as a central pillar of the GST 2.0 compliance framework. This guide explains each action, its exact effect on your ITC and on supplier liability, the return sequence, the deadlines, and the errors that cost businesses real money.

What Is the GST Invoice Management System (IMS)?

The Invoice Management System (IMS) is a facility on the GST portal that lets a registered recipient accept, reject, or keep pending each inbound invoice, credit note, and debit note before it flows into GSTR-2B and becomes input tax credit. It moves ITC matching from a passive, after-the-fact reconciliation into an active, record-by-record decision that the buyer controls.

Before IMS, GSTR-2B was a fixed, system-generated statement that you accepted as-is, then adjusted manually inside GSTR-3B. That left a constant gap between what suppliers reported and what buyers could actually claim, which became one of the most common reasons for departmental scrutiny. IMS closes that gap by giving the recipient a live dashboard of every record a supplier reports, with one decision attached to each line. The decision you record, and not the supplier's filing alone, now shapes your credit statement.

IMS also creates a two-way communication channel that the GST system lacked for years. Every action you take is visible to the supplier, and every change the supplier makes refreshes your dashboard. This puts the matching condition in Section 16(2)(aa), which allows credit only on invoices the supplier has actually reported, into a live and transparent workflow. Instead of discovering a mismatch months later in a departmental notice, both parties see the same record status within the same return cycle and can resolve differences before the credit is claimed.

How IMS Fits Into GST 2.0

The GST 2.0 reforms, approved at the 56th GST Council meeting and effective from 22 September 2025, simplified the rate structure into two main slabs of 5% and 18% (with a 40% rate on select demerit goods) and tightened the credit chain. IMS is the operational backbone of that tighter chain: it forces a clean, recipient-verified flow of ITC and reduces fake or duplicate credit. From the October 2025 tax period, GSTN added further IMS controls, including the ability to keep specified credit notes pending and to declare a reversal amount when accepting them.

Who This Guide Is For

This guide is written for business owners, accounts teams, and finance managers who file GST returns and claim ITC, whether monthly or under the QRMP scheme. It covers the recipient side of IMS: how supplier records reach your dashboard and how your actions decide your credit. It does not cover the supplier-side mechanics of preparing GSTR-1 beyond how those records appear to you. Any business with active GST registration that buys from other GST-registered suppliers should follow this process every return cycle.

What IMS Changes for Your Business

For a buyer, IMS turns input tax credit from something you calculated into something you curate. You decide, invoice by invoice, which credit you stand behind, which makes your GSTR-3B defensible during scrutiny. It also surfaces supplier behaviour early: a vendor who routinely files late or reports wrong values becomes visible on your dashboard, letting you address the relationship before it costs you credit. The practical payoff is fewer mismatches, fewer notices, and a faster, evidence-backed annual reconciliation at GSTR-9.

Which Records Flow Into IMS (and Which Do Not)

Understanding what reaches your dashboard, and what skips it, is the foundation of correct action. IMS captures forward-charge records that a supplier reports against your GSTIN. A small set of supplies bypass IMS entirely and populate GSTR-3B directly, so you should never wait for them to appear in the dashboard.

A record appears the moment a supplier saves it in GSTR-1, the IFF, or GSTR-1A, even before the supplier files the return. That early visibility lets you start reconciliation sooner. The record only becomes part of your GSTR-2B, however, once the supplier files the return. So a saved-but-unfiled record can be reviewed but will not yet count toward your credit.

Amendments deserve special attention. When a supplier corrects a record through GSTR-1A or a later GSTR-1, the amended version replaces the original on your dashboard and any action you took on the original is reset, so you must review it again. This is why a record you accepted last week can reappear as unactioned: the supplier changed it before filing. Checking the dashboard close to the supplier's filing date, rather than acting too early, avoids repeating the same review twice.

The Three Actions: Accept, Reject, and Keep Pending

Every record in IMS needs one of three decisions. Each carries a precise effect on your GSTR-2B and on the ITC that auto-populates in GSTR-3B. The table below summarises the effect of every action, followed by detail on when to use each one.

Every action is recorded per record, not per supplier, so you can accept some invoices from a vendor and reject others from the same one. Actions stay fully editable until you file GSTR-3B, which means you can revise a decision as new information arrives during the month. The dashboard keeps a running count of accepted, rejected, and pending records, giving you a quick read on how much of your credit is reconciled before the 14th draft is generated.

Accept

Select Accept when a record matches your purchase register: the supplier GSTIN, document number, date, taxable value, tax rate, and place of supply all line up, and you have received the goods or services. Accepted records become part of your GSTR-2B and auto-populate as eligible input tax credit in Table 4 of GSTR-3B. You can accept records individually or use bulk-accept for large volumes of fully reconciled invoices. The action stays editable until you file GSTR-3B, so an accepted record is never truly locked until the return is submitted.

Reject

Use Reject only when a record is genuinely wrong: a duplicate, an invoice issued against the wrong GSTIN, a value that does not match a confirmed transaction, or a supply that never reached you. Rejected records move to the ITC rejected section of GSTR-2B and do not auto-populate in GSTR-3B, so you claim nothing on them. Rejection is visible to the supplier, who can then correct and report the record again. Rejecting a valid record by mistake does not destroy the credit permanently, but it does delay it until the supplier re-reports the invoice.

Reject is also the right action for an invoice that belongs to a different GSTIN within your group, a supply you returned in full, or a vendor error you have already flagged. Because rejection is visible to the supplier and moves the record to the ITC rejected section, it doubles as a signal that tells the supplier to correct and re-report. Keep a brief written reason for every rejection, since the department can later ask why a reported invoice was declined.

Keep Pending

Choose Keep Pending when you are not ready to decide: goods are in transit, the invoice value is under confirmation, or you are awaiting a credit note. The record is excluded from the current period's GSTR-2B and carried forward to the next month's dashboard, where it waits until you accept or reject it. Pending protects cash flow and prevents a premature ITC claim, but it is not available for every record type, as the credit-note rules later in this guide explain.

Use pending deliberately, not as a dumping ground. It suits goods in transit, an invoice value under query, or a supply you expect the vendor to amend. It does not suit a record you simply have not checked, because an unchecked record left untouched past GSTR-2B generation becomes deemed accepted anyway, defeating the purpose. The moment a pending record is confirmed, accept or reject it and recompute, so your credit lands in the right period. Reviewing the pending tab first, before new records, keeps the backlog from growing month over month.

When you open a record and are unsure which action fits, run through this quick decision checklist:

1. Do the GSTIN, document number, and value match your books? If not, Reject the record or query the supplier before acting.
2. Have you actually received the goods or services? If the supply is still in transit, Keep Pending until receipt, as Section 16(2)(b) requires.
3. Is it a credit note? You must Accept it (reducing your ITC) or Reject it (raising supplier liability); most credit notes cannot be kept pending.
4. Is it a duplicate of a record already claimed? Reject it to stop a double claim from entering GSTR-2B.
5. Is everything correct and received? Accept the record, then recompute GSTR-2B if you are acting after the 14th.

Deemed Acceptance: What Happens When You Do Nothing

The most important rule in IMS is also the easiest to overlook: no action equals acceptance. Any record you neither reject nor keep pending is treated as accepted when GSTR-2B is generated. Deemed accepted records carry the same ITC effect as actively accepted records: they enter GSTR-2B and auto-populate GSTR-3B as eligible credit.

This design keeps the system moving for businesses that do not log in every month, but it shifts the risk squarely onto the recipient. If a duplicate invoice, a wrong-GSTIN entry, or a supply you never received sits unactioned, deemed acceptance pulls it straight into your claimed ITC. The department can later question that credit, and reversing it attracts interest under Section 50 and, in some cases, a penalty. Deemed acceptance is a convenience, not a safety net.

The rule exists so the portal can still generate a GSTR-2B for every taxpayer, including the many small businesses that do not log in monthly. Without a default, an inactive recipient would have no credit statement at all. The trade-off is that the burden of accuracy sits with the recipient, because the law treats silence as agreement. For a business with even moderate purchase volume, that presumption is too risky to lean on, which is why a monthly review is the only safe posture.

How IMS Feeds GSTR-2B and Your Input Tax Credit

IMS is the working space; GSTR-2B is the output. Every decision you record in IMS shapes the auto-drafted GSTR-2B, which in turn pre-fills your GSTR-3B. Three mechanics control this flow: the 14th-of-month draft, the recompute step, and the split between eligible and rejected credit.

The 14th-of-Month Draft GSTR-2B

The system generates a draft GSTR-2B on the 14th of every month, capturing your IMS actions up to that point and the records suppliers have filed. Because suppliers' GSTR-1 is due on the 11th, the window from the 12th to the 14th is the ideal time to act, so your very first draft already reflects your decisions. Records still saved but unfiled by a supplier on the 14th will not appear in that draft; they enter only after the supplier files.

Treat the 14th as a soft snapshot, not a hard deadline. It does not stop you from acting; it simply fixes a draft you can refresh. Many businesses set their internal cut-off at the 13th, finishing reconciliation a day before the draft so the very first GSTR-2B is already accurate. Aligning your close with the 11th-to-14th window keeps the busy period away from the 20th filing date and leaves room to chase any supplier whose invoice is missing.

Recomputing GSTR-2B After the 14th

You can keep acting on records after the 14th, right up to filing GSTR-3B. Whenever you take a new action or change an existing one after the draft is generated, you must press Recompute GSTR-2B on the IMS dashboard. Recomputing refreshes the statement so it matches your latest decisions. Skipping it is a frequent and costly error: GSTR-3B then auto-fills from the stale draft, and your claimed ITC will not match the records you actually accepted.

Eligible ITC Versus Rejected ITC

GSTR-2B separates your credit into two parts. Accepted and deemed accepted records sit in the eligible ITC section and auto-populate Table 4 of GSTR-3B. Rejected records sit in a distinct ITC rejected section and never flow into GSTR-3B. The portal also warns you under Rule 36(4) if you manually enter a figure higher than the auto-populated eligible ITC, because upward variance from the system value invites scrutiny. Once GSTR-2B and your books agree, filing GSTR-3B is a quick confirmation rather than a manual rebuild. Our step-by-step GSTR-3B filing guide walks through Table 4 in detail.

GST 2.0 also moved GSTR-3B toward auto-population that is harder to override. Table 4 input tax credit is filled from the recomputed GSTR-2B, and the portal resists upward edits, nudging taxpayers to correct the source records in IMS rather than inflate the return. The direction is clear: the cleaner your IMS actions, the smoother your GSTR-3B, because the return increasingly confirms verified data instead of accepting free-form entries.

A Worked Example: One Filing Cycle in IMS

A concrete example shows how these actions translate into rupees of credit. Assume a trading business reviewing its IMS dashboard for the May 2026 tax period before filing GSTR-3B on 20 June 2026. Five supplier records have appeared from GSTR-1 and the IFF, and the business reconciles each line against its purchase register and books before acting.

The Records on the Dashboard

The dashboard shows five records. A goods invoice with ₹90,000 tax matches the purchase register exactly. A services invoice carries ₹40,000 tax and is correct. A third invoice with ₹20,000 tax is for a consignment still in transit on 20 June. A fourth, with ₹18,000 tax, is a duplicate of an invoice already received and accepted last month. The fifth is a credit note that reduces tax by ₹12,000, issued for a genuine sales return the business had agreed to. Each record needs a deliberate decision rather than a blanket acceptance.

The Actions and the Resulting ITC

The business accepts the two correct invoices, giving ₹1,30,000 of eligible credit (₹90,000 plus ₹40,000). It keeps the in-transit invoice pending, deferring ₹20,000 until the goods arrive, because Section 16(2)(b) requires receipt. It rejects the duplicate, removing a wrong ₹18,000 claim before it can trigger a notice. It accepts the credit note, reducing credit by ₹12,000. After recomputing GSTR-2B, the eligible ITC auto-populated in GSTR-3B is ₹1,18,000. The ₹20,000 pending invoice carries forward to June, and the ₹18,000 duplicate never reaches the return.

Two lessons stand out. First, the duplicate would have been deemed accepted had the business ignored IMS, quietly inflating credit by ₹18,000. Second, pending is a cash-flow tool rather than a delay tactic: the ₹20,000 was not lost, only timed correctly to the month of receipt. Repeated every cycle, this discipline keeps claimed ITC exactly equal to entitled ITC, which is the whole point of the system.

Step-by-Step: How to Accept or Reject Invoices in IMS

The full process runs across 8 steps, from logging in to filing GSTR-3B and reviewing carried-forward records. Most businesses complete it in under one working day each cycle once their reconciliation is in place.

Before you start, keep your purchase register for the period open beside the dashboard, and confirm the previous period's GSTR-3B is filed so the current GSTR-2B can generate. The steps below assume a monthly filer; QRMP users follow the same actions but compile GSTR-2B at quarter end. Work through every tab, invoices, debit notes, and credit notes, so no record is left unreviewed and silently deemed accepted.

Step 1: Log In and Open the IMS Dashboard

Visit gst.gov.in and log in with your GSTIN credentials. Go to Services, then Returns, then Invoice Management System (IMS). The dashboard opens with inbound records grouped as invoices, debit notes, and credit notes across separate tabs, each carrying counts of accepted, rejected, and pending records. Select the relevant tax period. The dashboard is the single screen from which every action in this guide is performed.

Step 2: Review Records Flowing From Suppliers

Examine every record that suppliers have saved or filed in GSTR-1, the IFF, or GSTR-1A. Each line shows the supplier GSTIN, document number, date, taxable value, tax amount, and source form. Records appear as soon as suppliers save them, which lets you begin reconciliation before they file. Remember that only filed records form part of GSTR-2B, so note which lines are still saved-but-unfiled and follow up with those suppliers if a key invoice is missing close to the 11th.

Step 3: Reconcile Each Record Against Your Purchase Register

Match each IMS record against your purchase register and the invoice or e-invoice received. Confirm the GSTIN, document number, value, tax rate, and place of supply, and check that the goods or services were actually received, a condition under Section 16(2)(b). Flag mismatches, duplicates, and invoices for goods in transit. For high invoice volumes, reconciliation software that maps IMS data to your books speeds this up and reduces manual error. This reconciliation, not guesswork, drives the next step.

Step 4: Take Action: Accept, Reject, or Keep Pending

For each record, select Accept if it matches your books, Reject if it is wrong or not yours, or Keep Pending if you need more time. Use bulk actions for clean records and handle exceptions individually. Accepted records feed your eligible ITC; rejected records move to the ITC rejected section and claim nothing. Resist the temptation to accept everything at once, because that is exactly how duplicates and wrong invoices slip into your credit.

Step 5: Apply the Special Rules for Credit Notes and Amendments

Credit notes and certain amendments follow stricter rules and usually cannot be kept pending. Review each credit note carefully: accepting it reduces your input tax credit, while rejecting a valid credit note increases the supplier liability in their next GSTR-3B. When a supplier amends a record, the amended version replaces the original on your dashboard and resets any earlier action, so you must review the revised record afresh. The next two sections cover both rules in full.

Step 6: Recompute the Draft GSTR-2B

The draft GSTR-2B is generated on the 14th. If you take or change any action after the 14th, press Recompute GSTR-2B on the IMS dashboard so the statement reflects your latest decisions. Recomputing is quick but mandatory; without it, GSTR-3B pulls the old draft and your ITC will not match the records you accepted. Make recomputing the final step before you move to GSTR-3B every cycle.

Step 7: Verify Auto-Populated ITC in GSTR-3B

Open GSTR-3B for the period and check Table 4, where eligible ITC is auto-populated from the recomputed GSTR-2B. Confirm that accepted records show as available credit and rejected records are excluded. Investigate any variance against your books before proceeding. If you enter a figure above the auto-populated value, the portal flags an upward variance under Rule 36(4), which you should resolve rather than override.

Step 8: File GSTR-3B and Review Carried-Forward Pending Records

File GSTR-3B for the period using DSC or EVC. Accepted, deemed accepted, and rejected records then move out of the IMS dashboard, while pending records carry forward to the next month. Because GSTR-2B is sequential, the next period's statement generates only after this GSTR-3B is filed. Before each subsequent cycle, revisit carried-forward pending records and clear them within the Section 16(4) time limit so no credit lapses.

The GST Return Sequence: GSTR-1, IFF, GSTR-1A, GSTR-2B, GSTR-3B

IMS sits in the middle of a fixed monthly sequence. Knowing the order and the dates lets you act at the right moment and avoid a scramble near the filing deadline. The table below maps the full cycle for a monthly filer.

The supplier's GSTR-1 filing is what makes a record count toward your credit, while GSTR-1A lets a supplier correct mistakes before their own GSTR-3B. The 14th is your internal milestone: act before it for a clean first draft, and recompute after it for any late changes. Build a reminder around the 12th to 14th so reconciliation never collides with the 20th deadline.

One more condition runs alongside this sequence: the 180-day payment rule. Under the second proviso to Section 16(2), if you do not pay a supplier within 180 days of the invoice date, the ITC you claimed must be reversed and can be reclaimed only after payment. Accepting an invoice in IMS does not suspend this rule, so track supplier payments separately. A clean IMS action paired with an unpaid invoice can still produce a reversal if the 180-day window lapses.

When You Cannot Keep a Record Pending

Pending is flexible, but the law does not allow it for records that, if deferred indefinitely, would let a recipient sit on a credit-note reduction. For these records you must choose Accept or Reject. The GSTN advisory lists four scenarios where Keep Pending is blocked.

The logic behind these restrictions is to stop a recipient from indefinitely postponing a reduction in credit. A credit note lowers the supplier's tax only when the recipient agrees to reduce the matching ITC. If pending were allowed on credit notes, a buyer could defer that reduction while the supplier waited, leaving the tax in limbo. By forcing an accept-or-reject decision, the system keeps the credit chain balanced within each return cycle.

How Your Rejection Affects Supplier Liability

IMS is a two-way system. Your actions on credit notes and certain amendments feed back into the supplier's return. When you reject a credit note, the supplier cannot reduce their output tax against it, so their liability increases in the next GSTR-3B. The GSTN advisory sets out the exact scenarios, summarised below with example values.

The logic is consistent: a credit note reduces the supplier's tax only if the recipient accepts the corresponding ITC reduction. Reject it, and that reduction is reversed onto the supplier. This is why a wrong rejection is not a private mistake; it lands as a real liability on another taxpayer. Conversely, when a recipient wrongly rejects a genuine invoice, the recipient loses the credit while the supplier's already-declared liability stays in place.

When a genuine dispute arises, the fix sits outside IMS: the supplier and recipient agree on the correct position, and the supplier re-reports or amends the record through GSTR-1A or the next GSTR-1 so the recipient can act on the corrected version. Keeping a short reconciliation note for each rejection, naming the document and the reason, turns a potential standoff into a quick, evidenced correction and protects both parties if the department later asks why a credit note was declined.

Because your action can move money onto another taxpayer, IMS rewards good supplier communication. Buyers who share a monthly reconciliation summary with regular vendors see fewer wrong credit notes and faster corrections, which protects credit on both sides of the transaction. Treat the dashboard as a shared ledger of truth rather than a private control panel, and the accept-reject mechanism becomes a tool for cleaner trade relationships instead of a source of friction. A five-minute call before rejecting a high-value credit note often saves weeks of reconciliation later.

Pending Carry-Forward and the ITC Time Limit

Pending records do not expire at month-end. They remain on your IMS dashboard and carry forward month after month until you accept or reject them. This is genuinely useful for goods in transit or invoices awaiting confirmation. The carry-forward is not unlimited, though, because the underlying ITC is still bound by the statutory deadline.

Under Section 16(4) of the CGST Act, 2017, input tax credit for a financial year must be claimed by 30 November of the following financial year, or the date of filing the annual return for that year, whichever is earlier. A record left pending past that date cannot be accepted into a valid claim, and the credit is lost permanently. So treat pending as a short pause, not a parking lot. Each cycle, revisit the carried-forward list and clear anything that is now confirmed. If you later find ITC that needs reversal because the supplier was not paid within 180 days, our guide on reversing ITC under Rules 42 and 43 covers the mechanics.

Tracking pending records across months is itself a discipline. Because they accumulate on the dashboard, a business that keeps deferring decisions can reach year-end with dozens of stale pending items. A simple monthly habit prevents this: each cycle, sort pending records by age, clear anything now confirmed, and chase suppliers on records that have lingered. Carrying a clean pending list into the GSTR-9 annual reconciliation makes that filing far easier and reduces the chance of an unexplained mismatch.

IMS for QRMP Taxpayers

Taxpayers under the Quarterly Return, Monthly Payment (QRMP) scheme use the same dashboard with one structural difference: the timing of GSTR-2B. Records that QRMP suppliers save through the Invoice Furnishing Facility (IFF) for the first two months of a quarter, and through the quarterly GSTR-1, all flow to your IMS dashboard as normal. You can accept, reject, or keep them pending as they appear.

The difference is that a QRMP recipient's GSTR-2B is generated quarterly, not monthly. You still act on records throughout the quarter, but the credit statement compiles at the quarter end and feeds the quarterly GSTR-3B, due on the 22nd or 24th of the month after the quarter depending on your state. Practically, this means a QRMP business should not let three months of records pile up; reviewing the dashboard each month keeps the quarter-end close manageable and prevents a last-minute reconciliation crunch.

QRMP suppliers can push their most important B2B invoices to you early through the IFF in the first two months of the quarter, even though their GSTR-1 is quarterly. Those IFF records appear in your IMS immediately, so you can act on high-value purchases without waiting for the quarter to close. Coordinating with key QRMP suppliers to use the IFF for large invoices smooths your credit timing and avoids bunching all reconciliation into the final month.

Recent IMS Enhancements Under GST 2.0

GSTN has refined IMS in stages since launch. The most significant set of changes took effect from the October 2025 tax period, aligning IMS with the broader GST 2.0 compliance reforms. Three enhancements matter most for day-to-day use.

First, recipients can now keep specified credit notes pending for a limited window, rather than being forced to immediately accept or reject every credit note. Second, when accepting a credit note, a recipient can declare whether ITC was availed and the reversal amount, which makes the credit-note effect precise instead of all-or-nothing. Third, the portal added a remarks field so a recipient can record a reason when rejecting or partially accepting a record, creating a cleaner audit trail. These changes reduce friction on credit notes while keeping the recipient firmly in control. Always confirm the current rules against the latest advisory on gst.gov.in, since GSTN continues to refine the facility.

For day-to-day users, these enhancements reduce the friction that made early IMS adoption painful. The biggest practical gain is on credit notes: being able to record a reversal amount when accepting one means your books and your return agree without manual workarounds. The remarks field, meanwhile, builds the audit trail that auditors and the department increasingly expect, since a documented reason for each rejection is far easier to defend than a bare action. The pattern is consistent across GST 2.0: more control for the recipient, paired with a tighter, better-documented credit chain that leaves less room for disputes.

The legal backing for IMS has also been strengthened. The GST Council, at its 55th meeting, recommended amendments to give the system a clear statutory footing, including changes to Section 38 and the rules governing GSTR-2B, along with a framework so a supplier's output liability is adjusted for a credit note only where the recipient has actually reversed the corresponding credit. These changes answer the early concern that IMS was a portal feature running ahead of the law, and they make the accept-reject mechanism enforceable rather than merely procedural.

Common Errors and How to Resolve Them

A handful of issues account for most IMS problems we encounter. Each has a clear fix once you understand the underlying rule.

GSTR-2B Not Generated for the Current Period

Because GSTR-2B is sequential, the system generates the current period's statement only after the previous period's GSTR-3B is filed. The portal message confirming that the summary was not generated for the current tax period almost always means an earlier GSTR-3B is pending. Resolve it by filing the outstanding return first, then the current GSTR-2B generates and your IMS actions take effect.

ITC in GSTR-3B Does Not Match Your IMS Actions

This is nearly always a missed recompute. If you changed any action after the 14th and did not press Recompute GSTR-2B, GSTR-3B pulls the stale draft. Go back to the IMS dashboard, recompute, then reopen GSTR-3B so Table 4 refreshes. Confirm the eligible ITC figure matches your reconciled books before filing.

A related warning appears when your entered ITC exceeds the auto-populated figure: the portal is applying Rule 36(4), which restricts credit to what sits in GSTR-2B. The usual cause is claiming credit on an invoice still pending or rejected in IMS, or one the supplier has not filed. Resolve it by accepting the genuine record and recomputing, or by trimming your claim to the eligible amount and claiming the balance once the supplier reports the invoice.

A Rejected Invoice You Meant to Accept

If you have not yet filed GSTR-3B, simply switch the action to Accept and recompute. If GSTR-3B is already filed, the record has left the dashboard, so ask the supplier to report the invoice again through GSTR-1A or the next GSTR-1. It then reappears in IMS for you to accept, and you claim the credit within the Section 16(4) window.

A Supplier-Reported Invoice You Cannot Find

If a supplier insists they reported an invoice that is not on your dashboard, check whether they only saved it without filing GSTR-1, or reported it against a wrong GSTIN. Saved-but-unfiled records do not yet enter GSTR-2B. Ask the supplier to file or correct the record. If a department notice later arises from a mismatch, our GST notice reply assistance can help you respond with the right documentation.

Common Mistakes to Avoid

Beyond technical errors, four habits quietly erode ITC and invite scrutiny. Avoiding them is the difference between a clean credit record and a reversal notice.

1. Bulk-Accepting the Entire Dashboard

Accepting every record in one click feels efficient but invites duplicates, wrong-GSTIN invoices, and credit notes you never reviewed. Bulk-accept only fully reconciled records, then handle exceptions individually. The exceptions are where money is won or lost.

2. Ignoring IMS in Low-Purchase Months

Even a quiet month can carry a stray duplicate or a wrong invoice that deemed acceptance will pull into your credit. A five-minute review every cycle, regardless of volume, stops deemed acceptance from creating a claim you cannot defend.

3. Forgetting to Recompute After the 14th

Any action taken or changed after the draft is generated needs a recompute, or GSTR-3B fills from old data. Make recompute the last action before opening GSTR-3B, every single time.

4. Rejecting Credit Notes Without Asking the Supplier

A rejected credit note raises the supplier's liability and can damage the relationship. Confirm the reason with the supplier first; most credit notes are valid sales returns, rate revisions, or discounts that you should simply accept.

Is There Any Cost to Use IMS?

IMS is a free facility on the GST portal. There is no government fee for accepting, rejecting, or keeping records pending, and no charge to generate or recompute GSTR-2B. The only costs are indirect and entirely within your control.

The meaningful cost of IMS is not a fee; it is the credit you lose and the interest you pay when records are mishandled. A wrongly deemed-accepted invoice that is later reversed attracts interest under Section 50, and a delayed GSTR-3B attracts late fees you can estimate with our GST late fee calculator. Used well, IMS protects far more value than it ever costs.

For businesses that prefer to outsource the monthly cycle, professional charges cover reconciliation, IMS action, and return filing as a service, separate from any government dues. Whichever route you choose, the economics favour active use: a single wrongly accepted ₹50,000 credit reversed with interest a year later costs more than a year of careful monthly reviews. IMS is one of the rare compliance tools where doing the work properly is also the cheapest option.

Related Resources

• How to File GSTR-1 Monthly Return: the supplier-side filing that makes records count in your IMS.
• How to File GSTR-3B Online: where your accepted ITC auto-populates in Table 4.
• How to Reverse ITC Under Rules 42 and 43: handling credit reversals correctly.
• GSTR-9 Annual Return Filing: the annual reconciliation where IMS discipline pays off.
• GST Late Fee Calculator: estimate the cost of a delayed GSTR-3B.

Summary

Accepting or rejecting invoices in the GST IMS is now the decisive step that controls your GSTR-2B and your input tax credit. Review every inbound record, Accept what matches your books, Reject what is genuinely wrong, and Keep Pending what you cannot yet confirm, remembering that inaction means deemed acceptance. Act before the 14th-of-month draft, recompute after any later change, and file GSTR-3B in sequence. Handle credit notes with care, because rejection shifts liability to your supplier, and clear pending records within the Section 16(4) deadline. Done consistently each cycle, IMS turns ITC matching from a source of notices into a clean, auditable routine.