The GST Network (GSTN) has steadily worked towards simplifying return filing and strengthening the accuracy of Input Tax Credit (ITC) claims. One of its most notable recent initiatives is the Invoice Management System (IMS) — now fully operational and reshaping how taxpayers manage purchase-side invoices.
With IMS, recipient taxpayers can directly access all invoices uploaded by suppliers in GSTR-1 or GSTR-1A through a centralized dashboard. Instead of passively relying on GSTR-2B, they can actively reconcile invoice data with their purchase register, and then accept, reject, or mark invoices as pending. Each action instantly impacts ITC eligibility and reflects in the taxpayer’s GSTR-2B statement, making ITC claims far more controlled and transparent.
By embedding invoice-level actions within the compliance framework, IMS has transformed ITC governance from a retrospective exercise to a real-time process. This not only strengthens audit preparedness but also ensures greater visibility, accuracy, and confidence in working capital decisions.
In this blog, we’ll break down how IMS functions and what it means for taxpayers navigating the ITC landscape today.
What is the Invoice Management System (IMS)?
The Invoice Management System (IMS) is a GSTN-backed platform that enables recipient taxpayers to view and manage all invoices uploaded by their suppliers in GSTR-1 or GSTR-1A through a single, centralized dashboard. Instead of manually matching purchase records with supplier filings, IMS brings invoices directly into one place, making reconciliation faster and more accurate.
Since invoice details flow seamlessly from supplier GSTR-1 filings into the IMS dashboard, taxpayers gain greater transparency with minimal scope for discrepancies. More importantly, IMS allows recipients to take real-time actions on each invoice — whether to accept, reject, or keep it pending. Every action directly influences Input Tax Credit (ITC) availability and is automatically reflected in GSTR-2B.
By embedding these invoice-level controls, IMS has already begun to streamline ITC governance, saving time, reducing reconciliation errors, and strengthening accuracy in ITC claims. For taxpayers, it represents a major shift from retrospective ITC tracking to proactive, action-driven management.
How Does the Invoice Management System Work?
The IMS dashboard is designed to streamline the ITC claim process by giving taxpayers real-time control over invoices reported by their suppliers. Here’s how the workflow operates today:
1- Supplier Uploads in GSTR-1 / IFF (QRMP): Suppliers report their outward supplies through GSTR-1 (or IFF for QRMP taxpayers) by the 11th of every month. Any amendments to invoices can be made in GSTR-1 itself or through GSTR-1A, until the supplier files GSTR-3B for that period. When a supplier amends an invoice, the revised version automatically replaces the earlier one in the recipient’s IMS dashboard, regardless of the recipient’s prior action.
2- Invoice Flow to Recipient’s IMS Dashboard: All invoices filed in GSTR-1 instantly populate in the recipient’s IMS dashboard, creating a single source of truth for purchase-side visibility. If a supplier later amends an invoice, the updated details also flow into IMS. However, the corresponding ITC becomes available to the recipient only in the subsequent month’s GSTR-2B.
3- Recipient Actions on Invoices: Within IMS, recipients can take one of three actions — Accept, Reject, or Keep Pending. These actions are available from the time the supplier uploads details in GSTR-1 until the recipient files GSTR-3B. Ideally, taxpayers should finalize actions before the 14th of the following month, when the draft GSTR-2B is generated.
If any change in action is needed after the 14th, the recipient must recompute GSTR-2B before filing GSTR-3B. Once GSTR-3B is filed, no further actions are allowed for that month. It’s also important to note that only invoices filed by suppliers (not just saved) are considered for ITC computation in GSTR-2B. In addition, a recipient cannot generate the next month’s GSTR-2B unless the previous month’s GSTR-3B is filed.
The IMS dashboard displays a comprehensive summary of all supplier invoices and the actions taken against them, giving taxpayers clear visibility and control over their ITC position.
Actions Available on the IMS Dashboard for Each Invoice
The Invoice Management System (IMS) now provides recipient taxpayers with expanded, structured options for managing supplier-filed invoices. Each action directly impacts how the invoice reflects in GSTR-2B and, ultimately, the taxpayer’s ITC claims.
1. Accept: When an invoice is marked as Accepted, it appears under the “ITC Available” section of GSTR-2B. The eligible ITC then auto-populates in GSTR-3B for that period. This is the default route for availing credits in a timely manner.
2. Reject: Rejected invoices are excluded from GSTR-2B and listed under the “ITC Rejected” category. The supplier is notified of the rejection, and the recipient can now also add remarks explaining the reason. These remarks are visible both in the recipient’s GSTR-2B and in the supplier’s outward supplies dashboard, enabling faster corrective action.
Suppliers may amend the rejected invoice (before filing GSTR-1), after which the record re-appears in IMS for the recipient to take fresh action.
Important: Rejection of certain documents may increase the supplier’s tax liability in subsequent months, such as:
- Downward amendments of invoices/debit notes (if the original was accepted and GSTR-3B already filed)
- Original credit notes
- Upward amendments of credit notes
- Downward credit notes (if the original was also rejected)
3. Pending: The Pending action in IMS lets a recipient defer decision-making on a supplier’s invoice or note instead of immediately accepting or rejecting it. When an invoice is marked pending, it stays outside the current month’s GSTR-2B and GSTR-3B, giving the taxpayer more time to verify details, resolve mismatches, or confirm with suppliers before taking a final call.
With the latest update, pending now works in two distinct ways:
For older records (already pending before the update): These invoices continue to remain in pending status until acted upon, subject to the overall time limit under Section 16(4) of the CGST Act for availing ITC.
For new records (filed by suppliers after the October 2025 rollout):
Pending is more controlled. It can be used only for specific types of records such as:
- Credit notes and upward amendments of credit notes
- Downward amendments of credit notes where the original was rejected
- Taxpayers can keep downward amendments of invoices or debit notes pending if they accepted the original and already filed GSTR-3B.
- Taxpayers can keep downward amendments of ECO documents pending if they accepted the original invoice and already filed GSTR-3B.
In practice, the Pending action is useful when:
- The invoice details are under verification with internal teams.
- The recipient awaits clarifications from the supplier.
- There is a risk of duplicate or mismatched reporting.
This makes pending a flexible holding option, but one that now comes with clear boundaries and deadlines for new records.
4. No Action: When taxpayers take no action, the system deems the invoices accepted, flows them into GSTR-2B, and counts them for ITC in GSTR-3B. While this avoids delays, it may not be the right choice for disputed records, since recipients lose the ability to add remarks or defer action.
5. Declare ITC / Reversal (new feature): IMS now allows recipients to declare the actual ITC availed and specify any reversal (full or partial) for records.
- When taxpayers avail no ITC, they don’t reverse anything.
- When they avail partial ITC, they reverse only that portion.
This feature strengthens audit readiness by providing a transparent trail of ITC decisions within IMS itself.
Supplies Not Included in the IMS Dashboard
While IMS centralizes most supplier-filed invoices for recipient action, certain categories of supplies bypass the dashboard entirely. Instead, they flow directly into GSTR-2B and GSTR-3B, without the option for recipients to accept, reject, or mark them pending. These include:
- Supplies ineligible under Section 16(4) of the CGST Act
Section 16(4) restricts ITC claims beyond the prescribed cut-off date. The system skips invoices that breach this timeline and reflects them directly in GSTR-2B as ineligible credits, preventing recipients from acting on them in IMS.
- Inward RCM supplies
Suppliers report inward supplies under Table 4B of GSTR-1, GSTR-1A, or IFF, and the system treats them as reverse charge transactions. These do not appear in IMS but directly impact GSTR-2B, where the recipient accounts for liability and corresponding ITC (if eligible).
- Supplies ineligible under Place of Supply (POS) rules
The system excludes invoices when Place of Supply rules disallow ITC outside the recipient’s State or Union Territory. They directly appear in GSTR-2B as ineligible ITC.
What is Different for QRMP Taxpayers?
Under the Quarterly Return Monthly Payment (QRMP) scheme, IMS treats taxpayers differently because the system does not generate GSTR-2B every month.
When the recipient is a QRMP taxpayer:
Unlike monthly filers, QRMP taxpayers do not receive GSTR-2B for months M-1 and M-2 of a quarter. The system generates a consolidated GSTR-2B in month M-3, capturing all invoice actions taken during the quarter.
When the supplier is a QRMP taxpayer:
The outward supplies reported through the Invoice Furnishing Facility (IFF) flow directly into the recipient’s IMS dashboard. The recipient’s actions (accept, reject, or pending) determine how these invoices appear in GSTR-2B. This ensures monthly visibility of invoices even though the supplier files quarterly.
ITC Claim Process: Current vs. Invoice Management System (IMS)
The ITC claim process has shifted from being largely manual and retrospective to action-driven and real-time with the rollout of IMS. Here’s how they differ:
Earlier ITC Claim Process
- Supplier Upload (GSTR-1): Suppliers saved their outward supplies in GSTR-1.
- Auto-population (GSTR-2A): These supplies flowed into GSTR-2A, visible to recipients for reconciliation.
- Reconciliation: Recipients reconciled GSTR-2B data with their purchase register, manually tracking mismatches and making rectifications.
- Filing Dependencies: After suppliers file GSTR-1, the system populates the details in GSTR-2B and GSTR-3B on the 14th.
- No Tracking for Pending: There was no mechanism to hold or track invoices under verification — invoices were either visible or missed.
ITC Claim Process with IMS
- Supplier Upload (GSTR-1 / IFF): Suppliers report outward supplies in GSTR-1 or IFF (for QRMP taxpayers).
- Invoice Flow to IMS: Invoices flow directly into the recipient’s IMS dashboard, creating a centralized, real-time record.
- Recipient Actions:
- Accept / Deemed Accept: Accepted or unattended invoices appear in “ITC Available” and flow into GSTR-2B and GSTR-3B.
- Reject: Rejected invoices move to “ITC Rejected”, excluded from ITC computation, and flagged to the supplier. Recipients can also add remarks, visible to suppliers for correction.
- Pending: Taxpayers can temporarily defer invoices. Pre-existing pending invoices stay governed by earlier rules (till Section 16(4) cut-off). For new supplier filings (post-Oct 2025), pending is time-bound (1 month for monthly filers, 1 quarter for QRMP filers) and limited to specified records.
- Declare ITC / Reversal: New facility to declare ITC actually availed and specify reversals (full or partial), ensuring audit-ready accuracy.
- Amendments: If suppliers amend invoices in GSTR-1 or GSTR-1A before filing GSTR-3B, the amended record automatically replaces the original in IMS. ITC, however, is available only in the subsequent month’s GSTR-2B.
- Recomputation: If recipients change their action after draft GSTR-2B (generated on the 14th), they must recompute before filing GSTR-3B. Filing GSTR-3B locks the month, and taxpayers cannot make further changes.
- Prospective Application: New rules apply to invoices filed after the October 2025 rollout; older records continue under prior rules.
FAQs
Q1. What is the Invoice Management System (IMS)?
IMS is a GSTN facility that gives recipients a unified dashboard of supplier-filed invoices. It allows them to accept, reject, mark pending, or declare reversals on invoices, with each action directly impacting ITC in GSTR-2B and GSTR-3B.
Q2. How does IMS simplify ITC claims?
By moving from retrospective reconciliation to real-time invoice-level actions, IMS gives taxpayers direct control over ITC eligibility, reduces mismatches, and builds an audit-ready trail.
Q3. When can recipients act on invoices in IMS?
From the time a supplier uploads details in GSTR-1/IFF until the recipient files GSTR-3B. Taxpayers should finalise draft actions before the 14th of the following month, when the system generates the GSTR-2B.
Q4. What happens when taxpayers take no action?
If taxpayers take no action, the system deems the invoices accepted and includes them in GSTR-2B and GSTR-3B.
Q5. Can recipients amend their actions?
Yes — until they file GSTR-3B for that period. Once taxpayers file GSTR-3B, they cannot make any further changes.
Q6. Can recipients mark all invoices as pending?
No. For records filed after October 2025, taxpayers can mark only specified categories (like credit notes and certain amendments) as pending, and only for one tax period. Older pending records remain under the earlier rules.
Q7. How does IMS differ for QRMP taxpayers?
For suppliers under QRMP, invoices reported in IFF flow into IMS monthly, ensuring visibility. For recipients under QRMP, GSTR-2B is available only in month M-3 of the quarter, consolidating all actions for that quarter.
