IMS

Why it matters to your business

Your input tax credit depends on what your suppliers report. Before the IMS, their invoices simply appeared in your GSTR-2B. Now you can say which ones are really yours. An invoice reported to your GSTIN by mistake, or for the wrong amount, can be rejected before it turns into credit you would later have to reverse with interest.

How it works

As of October 2026:

• When a supplier saves an invoice, credit note or debit note in their GSTR-1, GSTR-1A or IFF, it appears in your IMS.
• For each one you choose Accept, Reject or Pending. No action counts as accepted.
• Your GSTR-2B is generated on the 14th of the next month from the accepted and untouched documents. If you act after that, you recompute it yourself before filing GSTR-3B.
• A rejected invoice goes back to the supplier, who can correct it and report it again.
• Credit notes from suppliers deserve care: accepting one reduces your credit.

A monthly routine

1. After the 11th, when suppliers have filed, download your GSTR-2B or open the IMS.
2. Match it with the purchase bills in your books.
3. Reject what is not yours, keep pending what has not arrived, and ask suppliers about what is missing.
4. Recompute GSTR-2B if you acted after the 14th, then file GSTR-3B.

Common mistakes

• Ignoring the IMS and taking credit for an invoice that was never yours.
• Rejecting an invoice because of a small difference that the supplier could correct with a credit or debit note.
• Leaving documents pending month after month without following up.