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To claim input tax credit (ITC) under India’s GST system, confirm that your business is entitled to the credit, hold the prescribed tax document, verify receipt and business use, check the purchase against GSTR-2B and your books, apply any restrictions or reversals, then report the eligible amount in GSTR-3B. A credit appearing in GSTR-2B is not automatically eligible: the registered taxpayer must assess the legal conditions and keep records supporting the claim.
What GSTR-2B does—and what it does not do
GSTR-2B is an auto-drafted, read-only statement used to help prepare GSTR-3B. It can show supplier-uploaded documents, Input Service Distributor (ISD) credits and import information. It is not a return that you file separately, and it does not decide every question of legal eligibility.
Think of the statement as the portal’s view of reported transaction information, not as approval of your claim. A document marked available may still relate to a blocked purchase, personal or non-business use, exempt supplies, a missing receipt, a time-barred claim or another restriction. Conversely, a difference between your books and the statement needs investigation rather than an automatic assumption that the underlying purchase is either eligible or ineligible. The GST Portal’s “FAQs: Viewing Form GSTR-2B” explains the statement’s role and limitations.
This distinction matters when preparing the return. GSTR-2B is an input to your review; GSTR-3B is where you report the eligible credit and relevant reversals. The portal can help surface information and flag certain issues, but it cannot assess every detail of your business use, receipt evidence or statutory exception. Responsibility for deciding what to claim remains with the registered taxpayer.
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Check eligibility before you report a purchase
Use this screening sequence for each invoice, debit note or other credit document. The central framework is in Chapter V of the CGST Act, with documentary and calculation details in the input tax credit rules. State and Union Territory provisions generally mirror the central framework, but the applicable registration, transaction, tax type and notifications still matter.
In practice, a credit should move through several checks before it reaches the return: identify the registration and transaction, establish that the purchase is for business, verify the document and receipt, assess restrictions, reconcile the portal statement and books, then determine whether the claim is timely. A failure at one stage should be resolved or documented rather than hidden by relying on a total displayed in the portal.
1. Confirm the correct registration and business purpose
ITC is generally available to a registered person for input tax on goods or services used, or intended to be used, in the course or furtherance of business, subject to the Act and rules. Check that the document belongs to the GST registration that will claim it; do not treat a purchase recorded under one registration as interchangeable with another registration’s credit.
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If a purchase serves both business and non-business purposes, restrict the claim for the non-business portion. If it supports both taxable supplies—including zero-rated supplies—and exempt supplies, apply the prescribed apportionment rather than claiming the whole amount as unrestricted credit.
Business purpose is a transaction-level question, not just a question of whether the supplier issued a tax invoice. Consider what the goods or services were used for, whether that use relates to the registered person’s business, and whether the same purchase also supports exempt supplies or non-business activity. Where use is mixed, retain the basis for the restriction or apportionment. The applicable method is set by the rules; do not substitute an unsupported percentage or treat all mixed-use purchases alike.
2. Verify the prescribed document
Confirm that you have an eligible tax invoice or debit note, bill of entry for an import, qualifying ISD document, or another document recognized by the rules. Check the required particulars and match the document to the purchase, supplier and correct GST registration. A ledger entry or payment record alone is not a substitute for the prescribed supporting document.
Document type follows the nature of the transaction. For example, import information may be supported by a bill of entry, while an ISD credit should be traced to the qualifying ISD document. Confirm that the document details in your records correspond to the portal entry, and investigate differences in identifiers, dates or tax amounts rather than assuming they are harmless. Required particulars should be reviewed under the applicable invoice rules.
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Check evidence that the supply was received. The Act includes a deemed-receipt rule for specified cases in which goods are delivered to another person on the registered recipient’s direction. It also has a special rule for goods received in lots or instalments. These situations should be assessed against the statutory conditions and supported by records; do not assume that an invoice by itself proves receipt.
For ordinary purchases, link the document to evidence that the goods or services were actually received. For goods delivered to a third party at your direction or supplied in lots, retain records that establish the relevant facts and assess whether the statutory deemed-receipt or instalment provisions apply. The precise treatment depends on the conditions in the Act, so these cases warrant more than a quick match of invoice totals.
4. Check the statutory conditions and restrictions
Assess whether the tax was paid under the statutory scheme and the required return condition is met. Then check whether section 17(5) blocks the credit, whether exempt or non-business use requires restriction, and whether a specific reversal or other limit applies. These checks remain the taxpayer’s responsibility even if GSTR-2B displays the document as available.
Eligibility is therefore cumulative: the existence of a document or a portal entry does not replace the other conditions. A purchase may have proper paperwork but fail a business-use test; it may be received but fall within a blocked-credit category; or it may qualify in principle but require apportionment or reversal. Work through each relevant condition and record the result, especially where an exception to a restriction is being considered.
5. Check timing and prior claims
Apply the relevant time limit before reporting the credit. Also compare the document with earlier returns, credit notes and amendments so that it is not claimed twice. If the transaction concerns an old period or a possible statutory exception, review the applicable law and facts before treating the credit as claimable.
Prior-period review is particularly important where a supplier later amends a document, a credit note affects the original amount, or an earlier return already included the credit. Trace the document through the purchase register and filed return workings. If you cannot establish whether the credit has already been claimed, resolve that uncertainty before including it again.
Reconcile GSTR-2B with your books
Review the statement for the relevant tax period and compare its documents with your purchase register, source documents and evidence of receipt. Investigate mismatches, missing entries, amendments, credit notes and apparent duplicates. The practical aim is to establish what the document represents, whether it belongs to your registration and whether it passes the legal eligibility checks—not simply to copy a portal total into the return.
- Open the relevant GSTR-2B statement on the GST Portal and review the entries for the period. The statement is read-only and is not separately filed.
- Match each relevant entry to your records: supplier or ISD details, document number and date, tax amounts, purchase-register entry and evidence that the supply was received.
- Investigate differences. For an entry in your books but not in GSTR-2B, check the document, supplier reporting and transaction details. For an entry in GSTR-2B but not your books, establish whether it is your purchase and whether it was received and recorded appropriately.
- Apply eligibility tests for business purpose, blocked credit, exempt-use apportionment, payment and other restrictions. Do not assume that a portal status performs this complete legal review.
- Check reversals and previous claims against credit notes, amendments, non-payment rules and earlier return workings. Prevent duplicate credit for the same document.
- Retain the statement and reconciliation with the source documents and a record of adjustments or deferrals. This makes the amount reported in GSTR-3B traceable to its supporting evidence.
For entries in your books that do not appear in GSTR-2B, separate the matching question from the eligibility question. Confirm that the purchase is genuine, the supporting document is valid, and the transaction belongs to the relevant registration. Then investigate the reporting difference and document whether the credit is deferred or otherwise treated under the current rules. Do not treat a missing portal entry as proof of eligibility or as an automatic conclusion that the purchase itself never occurred.
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The GST Portal identifies certain cases it flags, including documents affected by the section 16(4) time limit and certain place-of-supply mismatches. Those system checks are not an exhaustive list of every possible reason credit may be unavailable. A portal entry that passes an automated check still needs the taxpayer’s own eligibility assessment.
Report eligible credit and reversals in GSTR-3B
Once the reconciliation and eligibility review are complete, report the credit in the applicable ITC fields of GSTR-3B, including Table 4 where relevant. Follow the current form instructions for the credit’s nature and report reversals or ineligible amounts in the appropriate fields. CBIC Circular 170/02/2022-GST, dated 6 July 2022, sets out a reporting framework for eligible credit, reversals and ineligible ITC; check current instructions when filing because portal forms and guidance can change.
The portal may auto-populate some values, but those values are for review, not a substitute for the taxpayer’s reconciliation and eligibility decision. If you adjust an auto-populated amount, preserve the calculation and reason for the change. Keep the filed return and its working alongside the GSTR-2B download, purchase records and supporting documents.
Before filing, make sure the return figures reflect the result of the review rather than an unexamined portal total. Eligible credit, reversals and ineligible credit may need different treatment in the applicable fields. Use the current GSTR-3B instructions for the particular category and keep a clear bridge from the reconciled documents to the amounts reported. If an adjustment is made, the supporting working should show what changed, why it changed and how the resulting figure was calculated.
Recognize common restrictions and reversal triggers
Blocked credits under section 17(5)
Section 17(5) lists categories in which ITC is generally unavailable. The categories include specified motor vehicles and conveyances; certain food and beverage or personal-benefit services; membership and insurance categories; personal-consumption items; goods that are lost, destroyed or given away; and tax paid in specified proceedings. The Act also provides exceptions for some categories and uses. Read the exact provision against the transaction before deciding that a purchase is blocked or that an exception applies.
These are categories to screen, not a shortcut for deciding every case by label. A purchase that appears to fall within a listed category may require checking the precise statutory wording and any applicable exception. Conversely, a general business rationale does not on its own override a statutory block. Record the relevant facts and the provision applied when the treatment is not straightforward.
Exempt supplies and non-business use
Credit must be restricted for non-business use. Where inputs or services are used for both taxable supplies—including zero-rated supplies—and exempt supplies, the rules prescribe an apportionment method, including periodic and annual true-ups. Keep the calculation and records that explain how the amount attributable to eligible use was determined.
Do not equate “used by the business” with “fully attributable to taxable supplies.” A shared input or service can support different kinds of activity, and its credit may need to be apportioned. The rules provide the calculation approach and true-up mechanism; preserve the figures and assumptions used so that the periodic claim can be reconciled with the annual adjustment.
Supplier not paid within 180 days
Where the recipient does not pay the supplier the value of the supply plus tax within 180 days from the invoice date, the rules generally require the relevant credit to be reversed or added to output liability with applicable interest, subject to statutory exceptions. Credit may be taken again after payment, subject to the applicable provisions. Review the transaction and any exception rather than applying the rule mechanically where the facts differ.
The 180-day period is measured from the invoice date under the stated rule, so payment tracking should be linked to the invoice rather than handled only as a general accounts-payable balance. If the payment condition is not met, assess the required reversal and interest treatment under the rules. If payment is later made, check the provisions governing re-availment and retain evidence of payment and the earlier adjustment.
Credit notes, amendments and duplicate claims
Reconcile supplier credit notes and document amendments with both the purchase records and earlier return workings. A corrected or amended document does not justify taking the same underlying credit twice. Record whether a difference changes the credit, requires a reversal or has already been reflected in a prior period.
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Apply the time limit carefully
The general section 16(4) wording described in CBIC Circular 237/31/2024-GST, dated 15 October 2024, bars taking ITC after 30 November following the end of the relevant financial year, or furnishing the relevant annual return, whichever is earlier. Treat that as a statutory deadline, not as a routine filing target: identify the relevant financial year and annual return, then check which event occurs first.
The same circular discusses sections 16(5) and 16(6), inserted retrospectively from 1 July 2017. These provisions extend the section 16(4) period only for specified circumstances; they do not create a general extension for every late claim. A claim denied solely because of the time limit may raise a fact-specific question under the applicable provisions, but that is not a blanket revival of all disallowed credit. For late claims, amendments, disputes or past-year returns, verify the current consolidated law, notifications and circulars against the particular facts and seek qualified GST advice where appropriate.
When checking a claim near or after the deadline, identify both the financial year to which the document relates and whether the relevant annual return has been furnished. The earlier event controls under the general wording. Do not assume that filing a later return, correcting a reconciliation or finding a document in GSTR-2B automatically reopens an expired period. Retrospective sections 16(5) and 16(6) are limited provisions, so confirm their conditions before relying on them.
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Keep a defensible record of the claim
Retain records that let you trace the claimed amount from the filed return back to the transaction and its eligibility assessment. Depending on the transaction and applicable rules, that record set commonly includes:
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- Evidence of receipt, such as the relevant delivery or service records.
- The purchase-register entry and the GST registration to which the claim relates.
- The GSTR-2B statement download and reconciliation against the books.
- Calculations for apportionment, reversals or adjustments, with reasons for differences from auto-populated values.
- The filed GSTR-3B and the working that supports the ITC and reversal figures reported.
The records needed vary with the transaction type and applicable rules. For unusual, high-value, disputed or old-period claims, check the current consolidated law and portal instructions rather than relying on a general checklist alone. This guide reflects Indian GST sources checked on 13 October 2026; the portal and rules may change.
A useful record should make the decision understandable later, not merely preserve a collection of files. Keep the statement version reviewed, the matching result, any unresolved difference and the decision taken on it. Where a credit is deferred, reversed or adjusted, preserve the reason and subsequent follow-up, such as a later payment relevant to re-availment. The exact records depend on the transaction and applicable rules, but the aim is a traceable line from source document to return figure.
Final pre-filing checklist
| Check | Question to answer |
|---|---|
| Taxpayer | Is this the correct GST registration, and is it entitled to take the credit? |
| Document | Do you hold a valid prescribed document with the required particulars? |
| Receipt | Were the goods or services received, including any applicable lot or deemed-receipt rule? |
| Purpose | Is the purchase for business, and does any part relate to exempt or non-business use? |
| Restrictions | Does section 17(5) or another provision block or restrict the amount? |
| Matching | Does GSTR-2B match the document and purchase records? If not, has the difference been investigated? |
| Reversal | Are credit notes, non-payment after 180 days, exempt-use apportionment or prior-period errors relevant? |
| Reporting | Is the amount in the appropriate GSTR-3B field, with reversals and ineligible amounts separately handled as instructed? |
| Timing | Is the claim within the applicable time limit, or does a specific statutory exception apply? |
| Evidence | Are the reconciliation, adjustment reasons and filed-return working retained? |
Frequently Asked Questions
How do I claim input tax credit in GST?
For a registered business, verify the prescribed document, business purpose and receipt; check statutory conditions, exclusions, reversals and the time limit; reconcile the transaction with GSTR-2B and your books; then report the eligible amount in the applicable GSTR-3B fields. Retain the supporting documents and reconciliation.
Does an entry marked available in GSTR-2B mean I can claim it?
No. GSTR-2B is a read-only auto-drafted statement that helps prepare GSTR-3B. An entry may still be blocked, relate partly to exempt or non-business use, lack receipt support, be time-barred or require reversal. The taxpayer must assess eligibility.
What documents should I keep to support an ITC claim?
Depending on the transaction, keep the prescribed tax invoice, debit note, bill of entry, ISD document or other qualifying document; evidence of receipt; the purchase-register entry; the GSTR-2B download and reconciliation; and the GSTR-3B filing and supporting working. Retain calculations and reasons for adjustments or reversals.
What is the general deadline for claiming ITC?
The general section 16(4) deadline is 30 November following the end of the relevant financial year, or furnishing the relevant annual return, whichever is earlier. Sections 16(5) and 16(6) provide limited retrospective exceptions for specified circumstances, not a general extension for all late claims.
What happens if I have not paid the supplier within 180 days?
Where the value of the supply plus tax is not paid within 180 days from the invoice date, the rules generally require reversal or addition to output liability with applicable interest, subject to statutory exceptions. Credit may be taken again after payment under the applicable provisions.
Can I claim all the GST shown on a purchase used partly for exempt or personal purposes?
Not necessarily. Restrict credit for non-business use and apportion credit where inputs or services support both taxable, including zero-rated, and exempt supplies. Follow the calculation method and periodic and annual true-ups provided in the rules.
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Claim ITC only after the document, receipt, business use, GSTR-2B reconciliation, restrictions, reversals and deadline have all been checked. GSTR-2B helps prepare GSTR-3B, but the registered taxpayer remains responsible for deciding and documenting what is legally eligible.
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