Every business claiming Input Tax Credit under GST runs into the same two statements: GSTR-2A and GSTR-2B. Both show your inward supplies. Both fill up automatically from what your suppliers file. So people often treat them as the same thing.
However, they are not the same, and the difference decides how much credit you can legally claim. Moreover, the rules changed significantly after the Invoice Management System arrived.
This guide explains both statements, the real difference between GSTR-2A and GSTR-2B, how reconciliation works today, and how to claim ITC without triggering a notice.
What Is GSTR-2A?
GSTR-2A is a system-generated statement of your inward supplies. Rule 60 of the CGST Rules, 2017 backs it, and the portal builds it from what your suppliers report.
It pulls data from several sources:
- B2B invoices your suppliers upload in GSTR-1, GSTR-1A, or GSTR-5
- Input Service Distributor credits from GSTR-6
- TDS and TCS details from GSTR-7 and GSTR-8
- Import of goods and SEZ inward supplies, fed from the ICEGATE portal of Indian Customs
GSTR-2A keeps changing. Whenever a supplier files or amends something, the statement updates. So it works like a live feed of supplier activity, not a fixed record.
What Is GSTR-2B?
GSTR-2B is an auto-drafted ITC statement. The portal generates it for every regular taxpayer using supplier data from GSTR-1, IFF, GSTR-1A, GSTR-5, and GSTR-6, along with import data.
Unlike GSTR-2A, it stays static for the period once generated. Crucially, it also sorts your credit into “ITC available” and “ITC not available,” so you know exactly what you can claim. Because of this, GSTR-2B feeds directly into Table 4 of your GSTR-3B.
Neither statement requires filing. Both stay read-only. Still, GSTR-2B carries the legal weight for claiming credit.
How IMS Now Controls GSTR-2B
The Invoice Management System (IMS) went live from the October 2024 tax period, and it sits between your supplier’s filing and your GSTR-2B.
Earlier, whatever your supplier filed flowed straight into your GSTR-2B, correct or not. Now you get a say. On the IMS dashboard, you can act on each record in three ways:
- Accept: The invoice matches your records, so it flows into GSTR-2B as available credit.
- Reject: The invoice is wrong, duplicated, or not yours, so it stays out of your GSTR-2B.
- Pending: You need more time to verify, so it waits and enters a later period instead.
Two rules matter a lot here. First, if you take no action, the system treats the record as deemed accepted, and it enters your GSTR-2B anyway. So ignoring the dashboard is itself a decision. Second, the portal generates a draft GSTR-2B on the 14th of the following month. If you act on any record after that date, you must click “Recompute GSTR-2B” before filing GSTR-3B, otherwise your change will not reflect.
The government substituted Section 38 of the CGST Act through Notification 16/2025-Central Tax dated 17 September 2025, and codified the procedure through the CGST (Fourth Amendment) Rules, 2025. IMS then became mandatory from 1 April 2026 for regular taxpayers filing GSTR-3B, though composition dealers stay outside it.
GSTR-2A vs GSTR-2B: Complete Comparison
| Parameter | GSTR-2A | GSTR-2B |
|---|---|---|
| Nature | Dynamic statement of inward supplies | Static ITC statement |
| Purpose | Track supplier filing and follow up | Claim and reconcile ITC |
| Generation | Updates continuously through the month | Draft generated on the 14th of the next month |
| Changes after generation | Keeps updating with supplier amendments | Stays fixed unless you recompute after an IMS action |
| ITC bifurcation | Does not separate eligible and ineligible | Clearly splits available and non-available ITC |
| Legal basis | Rule 60, CGST Rules, 2017 | Section 38, CGST Act, as substituted in 2025 |
| Section 16(2)(aa) | Does not satisfy the condition | Satisfies the condition for claiming credit |
| Editable by recipient | Read-only | Read-only, but IMS actions shape it |
| Used for filing | Not used directly | Feeds Table 4 of GSTR-3B |
| Best used | Through the month, for vendor tracking | After the 14th, to confirm final credit |
In one line: use GSTR-2A to watch your suppliers, and use GSTR-2B to claim your credit.
Why GSTR-2A and GSTR-2B Differ
The two statements rarely match perfectly, and that is normal. Here is why the gap appears:
- Cut-off dates: GSTR-2B captures documents filed between fixed cut-offs. A supplier who files late lands in the next month’s GSTR-2B, while GSTR-2A shows it immediately.
- Your IMS actions: A record you rejected stays out of GSTR-2B, yet GSTR-2A still shows it, since GSTR-2A simply mirrors supplier filings.
- Amendments: GSTR-2A absorbs amendments on the fly. GSTR-2B, however, reflects the position as at generation, unless you recompute.
- Scope: GSTR-2A includes TDS and TCS data from GSTR-7 and GSTR-8, which GSTR-2B does not carry as ITC.
- QRMP filers: Quarterly filers receive GSTR-2B only for the last month of the quarter, not every month.
So a mismatch is not automatically a problem. Instead, it usually points to timing.
How to Find Both Statements on the GST Portal
Getting there takes under a minute:
- Log in to the GST portal at gst.gov.in.
- Go to Services, then Returns, then Returns Dashboard.
- Pick the financial year and tax period from the dropdown.
- Open the GSTR-2A or GSTR-2B tile, then view or download it in Excel or JSON.
For IMS, open the Invoice Management System dashboard from the Services menu instead.
GSTR-2B Reconciliation: A Practical Process
Reconciliation is where you protect your credit. Follow this sequence each month.
Step 1: Review IMS before the 14th
Scan the dashboard early. Reject anything that is not yours, and mark genuinely doubtful invoices as pending. Remember, silence means acceptance.
Step 2: Download GSTR-2B after generation
Pull the Excel or JSON file for the period once the draft appears.
Step 3: Match it against your purchase register
Compare GSTIN, invoice number, invoice date, taxable value, and tax amount. Tools like VLOOKUP work fine for smaller volumes, while reconciliation software helps at scale. GSTN also released an Excel-based IMS offline tool in April 2026 for bulk action.
Step 4: Sort the mismatches
Typically, you will find invoices in your books but missing from GSTR-2B, invoices in GSTR-2B but missing from your books, duplicates, and value differences.
Step 5: Strip out ineligible credit
Remove blocked credits under Section 17(5), personal-use items, and anything the statement marks as not available.
Step 6: Chase your suppliers
Ask them to report missing invoices in GSTR-1 or correct errors through GSTR-1A. Until an invoice appears in your GSTR-2B, you cannot claim it.
Step 7: Recompute if needed, then file
If you acted in IMS after the 14th, recompute GSTR-2B. Then review Table 4 of GSTR-3B before filing.
Handling this every month across many vendors takes real effort. If it is eating your time, our GST return filing service can manage the reconciliation and filing for you.
The ITC Claim Process Under Current Rules
Claiming credit today rests on a few conditions working together. You need a valid tax invoice. You must have received the goods or services. The supplier must have paid the tax. And under Section 16(2)(aa), the invoice must be communicated to you, which in practice means it must appear in your GSTR-2B.
Under Section 16(4), you must claim credit by the earlier of 30 November following the financial year, or the date you file the annual return. Miss that window, and the credit lapses permanently.
GSTR-3B is moving toward hard-locking. Outward liability fields already became non-editable from the July 2025 tax period, and the government has announced that ITC in Table 4 will follow the same path, with manual editing withdrawn and figures flowing from GSTR-2B and IMS.
Also, do not ignore a mismatch between GSTR-2B and the ITC you claim. A significant gap can trigger an intimation in Form DRC-01C, which asks you to explain or reverse the difference.
Common Mistakes That Cost Businesses Credit
- Claiming ITC straight from the purchase register, when the invoice never reached GSTR-2B.
- Skipping the IMS dashboard, which lets wrong invoices in through deemed acceptance.
- Forgetting to recompute GSTR-2B after acting on records past the 14th.
- Using pending as a parking spot, until the Section 16(4) window quietly closes.
- Rejecting credit notes carelessly, which creates mismatches that surface at annual reconciliation.
- Reconciling once a year instead of monthly, so errors pile up beyond repair.
Persistent mismatches can grow into a departmental demand. Our guide on Section 73 vs Section 74 vs Section 74A of the CGST Act explains how those proceedings work and what is at stake.
Conclusion
GSTR-2A and GSTR-2B serve two different jobs. GSTR-2A gives you a running view of supplier filings, which helps you spot gaps early and push vendors. GSTR-2B gives you the fixed, legally recognised base for claiming Input Tax Credit.
Since IMS arrived, though, the balance has shifted. Your GSTR-2B now reflects your own choices, not just supplier behaviour. So the winning habit is simple: review IMS every month, reconcile GSTR-2B against your books, chase missing invoices early, and file only after you confirm Table 4. Do that consistently, and you protect both your working capital and your compliance record.
Struggling With Monthly ITC Reconciliation?
Mismatches, missing invoices, and IMS actions add up fast. So if you would rather focus on your business, let our team handle it. Explore our GST return filing services or GST registration, or talk to our experts for help with your ITC claims.
Frequently Asked Questions
1. What is the main difference between GSTR-2A and GSTR-2B?
GSTR-2A is dynamic and keeps updating with supplier filings. GSTR-2B is static, splits eligible from ineligible credit, and serves as the base for claiming ITC.
2. Should I claim ITC based on GSTR-2A or GSTR-2B?
Always use GSTR-2B. It satisfies the condition under Section 16(2)(aa), while GSTR-2A does not.
3. Do I need to file GSTR-2A or GSTR-2B?
No. Both are read-only, auto-generated statements, so neither requires filing.
4. Why do GSTR-2A and GSTR-2B show different figures?
Mainly because of cut-off dates, late supplier filings, your IMS actions, and amendments. So a timing gap is common and usually harmless.
5. Can I claim ITC on an invoice missing from GSTR-2B?
No. Ask the supplier to report it in GSTR-1 or correct it through GSTR-1A, then claim it once it appears, within the Section 16(4) time limit.
6. What happens if I take no action in IMS?
The system treats the record as deemed accepted, so it flows into your GSTR-2B automatically. Therefore, review the dashboard every month.
