GSTR-2A and GSTR-2B both show the purchases your suppliers have reported against your GSTIN. The difference that matters is simple: GSTR-2B decides how much input tax credit (ITC) you can claim in GSTR-3B; GSTR-2A is a live reference that keeps changing. This guide explains the differences and gives a monthly reconciliation routine.
GSTR-2A vs GSTR-2B at a glance
| Point | GSTR-2A | GSTR-2B |
|---|---|---|
| Nature | Dynamic: updates whenever a supplier files or amends | Static: a fixed statement for each tax period |
| When it updates | Continuously, as suppliers file GSTR-1, IFF, GSTR-5, GSTR-6, GSTR-7 and GSTR-8 | Generated on the 14th of the following month |
| Use for ITC | Reference only | Basis for the ITC you claim in GSTR-3B |
| Shows ITC available or not | No | Yes, with separate sections for ITC available and not available |
| Includes import of goods (ICEGATE) | Yes | Yes |
| Late-filed supplier invoices | Added to the period of the invoice | Added to the period in which the supplier filed them |
| Link with IMS | Not affected by IMS actions | Built from the invoices you accept in the Invoice Management System |
Why GSTR-2B decides your ITC
Section 16(2)(aa) of the CGST Act allows ITC only if the invoice has been reported by the supplier and communicated to you. GSTR-2B is that communication. Your ITC in Table 4 of GSTR-3B should match the “ITC available” sections of GSTR-2B for the month, apart from items you deliberately reverse or hold.
Because GSTR-2B is fixed, the number does not change after you file GSTR-3B. GSTR-2A, in contrast, can show a different number tomorrow if a supplier files a late return today.
How IMS changed GSTR-2B
From the October 2024 tax period, the Invoice Management System (IMS) sits between your suppliers’ invoices and GSTR-2B. For each invoice you can:
- Accept it, so it flows into GSTR-2B as ITC available,
- Reject it, so it is kept out of your ITC, or
- keep it Pending, which carries it to a later period.
If you take no action, the invoice is treated as accepted. The draft GSTR-2B is generated on the 14th; if you change actions in IMS after that, recompute GSTR-2B before filing GSTR-3B.
Where GSTR-2A is still useful
- Chasing late suppliers: an invoice that shows in GSTR-2A for an earlier month but was missing from that month’s GSTR-2B means the supplier filed late. It will appear in a later GSTR-2B.
- Annual reconciliation: for GSTR-9, comparing purchases with GSTR-2A for the year helps find invoices never reported.
- Supplier follow-up: GSTR-2A shows each supplier’s filing status and dates.
Monthly reconciliation routine
- Export your purchase register for the month, with supplier GSTIN, invoice number, date, taxable value and tax.
- Download GSTR-2B (Excel) after the 14th, once IMS actions are done.
- Match on GSTIN plus invoice number, then compare taxable value and tax. Our GSTR-2B reconciliation tool does this in the browser.
- Sort the differences:
- in your books but not in GSTR-2B: ask the supplier to file; do not claim the ITC yet;
- in GSTR-2B but not in your books: check whether the purchase is genuine and whether it belongs to you;
- amount mismatch: get a credit or debit note, or a correction, from the supplier.
- Claim ITC in GSTR-3B based on GSTR-2B, and keep a list of pending invoices to claim when they appear.
Common questions
Can I claim ITC that appears in GSTR-2A but not in GSTR-2B? No. Claim it in the month it appears in GSTR-2B.
What if a supplier files after the 14th? The invoice moves into the next month’s GSTR-2B, and you claim it then, within the time limit under Section 16(4) (generally 30 November after the end of the financial year).
Does GSTR-2B include credit notes? Yes. Credit notes from suppliers reduce ITC and appear in GSTR-2B. Accept or reject them in IMS as you would invoices.