Why Two Inward Supply Statements?
Both GSTR-2A and GSTR-2B are auto-drafted statements of your inward supplies — they show the invoices your suppliers have filed against your GSTIN. They look similar, but they serve different purposes, and confusing them is one of the most common causes of wrong ITC claims. The golden rule: GSTR-2B is the document for claiming ITC; GSTR-2A is for tracking and reconciliation.
What is GSTR-2A?
GSTR-2A is a dynamic, real-time statement. The moment a supplier files (or amends) an invoice in their GSTR-1, IFF, GSTR-5 or GSTR-6, it appears in your GSTR-2A. Because it keeps updating, the figure you see today may differ from what you saw last week. It gives the most current picture of supplier filings.
What is GSTR-2B?
GSTR-2B is a static statement generated once a month, on the 14th. It freezes the invoices filed by suppliers within a defined cut-off window (broadly, GSTR-1s filed from the 12th of the previous month to the 11th of the current month). Once generated, it does not change for that month — which is exactly what makes it reliable for ITC claims, because the figure is fixed and auditable.
GSTR-2A vs GSTR-2B — Side by Side
| Parameter | GSTR-2A | GSTR-2B |
|---|---|---|
| Nature | Dynamic (changes continuously) | Static (fixed once generated) |
| Generated | Real-time, as suppliers file | Once a month, on the 14th |
| Basis for ITC claim | No (reference only) | Yes — the authoritative ITC source |
| ITC eligibility flags | Not provided | Marks each invoice ITC Available / Not Available |
| Cut-off | None — always current | Fixed filing window |
| Best used for | Year-round tracking, GSTR-9 reconciliation | Monthly ITC claim in GSTR-3B |
The ITC Eligibility Flags in GSTR-2B
Unlike GSTR-2A, GSTR-2B classifies each invoice so you know exactly what you can claim:
- ITC Available: Eligible credit — flows into GSTR-3B Table 4A.
- ITC Not Available: Blocked or ineligible — e.g., place of supply in another state, supplier under composition, or time-barred invoices.
- ITC Reversal: Credit that must be reversed (e.g., supplier non-compliance under Rule 37A).
How GSTR-2B Feeds GSTR-3B
When you open GSTR-3B for a month, Section 4A is auto-populated from that month's GSTR-2B. You may reduce these values (if you choose not to claim some ITC) but, under Rule 36(4), you generally cannot claim more ITC than appears in GSTR-2B. This is why a supplier failing to file their GSTR-1 directly costs you ITC — the invoice never reaches your GSTR-2B.
Why You Still Need GSTR-2A
If GSTR-2B is what you claim from, why look at GSTR-2A at all? Because GSTR-2A captures late filings and amendments that a frozen GSTR-2B for a given month missed. For annual reconciliation in GSTR-9 (Table 8), and for following up with suppliers who filed late, GSTR-2A's always-current view is invaluable.
Reconciliation Best Practices
- Claim ITC strictly from GSTR-2B each month.
- Use GSTR-2A to identify suppliers who filed late so their credit appears in a later GSTR-2B.
- Match your purchase register against GSTR-2B and chase down missing invoices before filing GSTR-3B.
- Use the Invoice Management System (IMS) to accept, reject or keep invoices pending — only accepted invoices flow into your GSTR-2B.
- At year-end, reconcile books vs GSTR-2A vs ITC claimed for GSTR-9 Table 8.
Practice GSTR-2A & GSTR-2B on IndIaTaxSim
IndIaTaxSim shows both statements side by side — the dynamic GSTR-2A that updates as simulated suppliers file their GSTR-1, and the static GSTR-2B with its ITC Available / Not Available tabs and the cross-GSTIN logic that pulls a supplier's B2B invoices into your statement. You can then watch GSTR-2B auto-populate your GSTR-3B Section 4A, and practise IMS accept/reject actions — the complete ITC reconciliation workflow in one place.
IndIaTaxSim Team
GST compliance experts building India's most complete GST simulation platform. All articles are reviewed for accuracy against the latest GSTN portal updates.