If an invoice in GSTR-2B does not belong to you, do not claim the ITC. Match the record to your purchase register, review its IMS status and contact the supplier to correct the GSTIN or underlying document. If the current IMS workflow permits rejection for the record type, use it only after verifying the invoice is genuinely not yours. Keep the supplier correction trail so a later amendment does not trigger a second reversal.
What this means for the business owner
If an invoice in GSTR-2B does not belong to you, do not claim the ITC. Match the record to your purchase register, review its IMS status and contact the supplier to correct the GSTIN or underlying document. If the current IMS workflow permits rejection for the record type, use it only after verifying the invoice is genuinely not yours. Keep the supplier correction trail so a later amendment does not trigger a second reversal.
The return/application history and underlying source records should tell one consistent story before any correction, payment or clarification is submitted.
Who should use this guide
This guide is for taxpayers facing the exact fact pattern in the title. It is especially useful when the portal and your books/documents do not agree, when another person handled the original filing, or when a current application/return deadline is approaching.
Why this problem usually happens
Common causes are a supplier typing the wrong GSTIN, using an old customer master, duplicate upload or credit/debit note linked to the wrong recipient.
What should be checked immediately
Do not start with a correction entry. First collect the minimum evidence needed to prove what actually happened.
| Finding | Recipient action | Supplier action |
|---|---|---|
| Not your invoice | Do not claim; IMS action if applicable | Correct GSTIN/document |
| Duplicate supplier record | Do not double claim | Amend/correct duplicate |
| Later amendment arrives | Reconcile history | Confirm corrected record |
What to do now
Freeze the invoice details, search your purchase register and AP records, inspect IMS, notify the supplier in writing and track the amendment. Do not manually claim and reverse a credit that was never yours just to make portal totals look neat.
Before submission, the client should receive a concise summary of the problem, the proposed tax/ITC/registration treatment, payment impact and any unresolved item. After submission, keep the ARN/order/acknowledgement and filed copy.
The 2026 legal and portal position
GSTR-2B and IMS are supplier-reported data controls; they do not create a commercial purchase that never happened. ITC must still satisfy section 16 and other eligibility conditions.
GST Portal workflows, notifications and due-date extensions can change. The official sources below were checked for this article on 19 August 2026; recheck them immediately before filing if the matter is time-sensitive.
A realistic hypothetical
A supplier reports a ₹5 lakh invoice with ₹90,000 GST to your GSTIN, but you never bought from them. Your 2B rises by ₹90,000. The correct outcome is no claim, recipient action where appropriate, and supplier correction—not using the credit temporarily.
What happens if the problem is ignored
Claiming the credit can create unsupported ITC and future mismatch. Reversing it twice after supplier correction can distort your own ITC history.
What TargoLegal checks before filing or responding
TargoLegal maps the invoice, purchase register, IMS action, 2B period and supplier amendment and keeps an exception log until the record is closed.
Before filing
Documents received, missing items, reconciliation difference, legal/portal route, payment impact and client approval.
After filing
Filed copy, ARN/acknowledgement, payment proof and a short open-items list for the next period.
What to send for a first review
Unknown invoice in 2B? Send the GSTIN and invoice month.
Related questions
What should I send first?
Send the GSTIN/ARN, the exact period or application stage, and the document that shows the problem. For this topic, the most useful starting point is: Supplier GSTIN, Invoice number/date/value, Relevant 2B.
Can I fix this by making an adjustment in the next return?
Not automatically. A later adjustment is appropriate only when the GST law and current portal workflow allow it and the original error has been reconciled.
Should I rely only on what the GST Portal auto-populates?
No. Portal data is essential evidence, but the taxpayer remains responsible for reconciling it with books, invoices and the applicable legal conditions.
What should I keep after the correction or filing?
Keep the filed return/form, ARN or acknowledgement, payment evidence, reconciliation working and any supplier/customer correspondence that explains the change.
When should professional review be considered?
Use professional review where the issue affects material tax or ITC, several periods, a registration notice, refund, e-invoicing, cancellation/revocation or a customer’s credit.
Official sources used
Legal and portal claims on this page use official GST Portal/GSTN, CBIC, GST Council, India Code or official IRP sources. Forum discussions were used only to understand real user questions, not as legal authority.
TargoLegal Research and Editorial Desk · Last legally reviewed: 19 August 2026. Recheck live forms, notifications, portal workflows and dates before acting.
