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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteShort answer: An invoice or an entry in GSTR-2B does not, by itself, create a right to GST input tax credit (ITC). A GST-registered person generally must satisfy the applicable conditions in Section 16 of the Central Goods and Services Tax (CGST) Act, hold a prescribed tax document, establish receipt and business use, account for supplier-reported details and tax payment under the statutory framework, file the relevant return, and screen the credit under Section 17. State GST and integrated GST provisions can apply alongside the CGST rules.
When a statutory reversal trigger occurs, the credit must be reversed in the prescribed manner. Some reversals are potentially reclaimable after the missing condition is met; others reflect permanent or category-specific ineligibility. The safe process is to reconcile GSTR-2B with your books, test each legal condition independently, document the conclusion, and keep an invoice-level trail for any reversal and later reclaim.
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ITC eligibility at a glance
Use this sequence for each purchase rather than treating a populated GSTR-2B as automatic approval.
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|---|---|
| Who is claiming? | The claimant is registered under GST and is claiming in the capacity and registration to which the inward supply relates. |
| Why was it bought? | The goods or services are used, or intended to be used, in the course or furtherance of business. Personal or non-business use may require denial or apportionment. |
| Is there a prescribed document? | A supplier tax invoice, debit note, or another document permitted by the Act and Rule 36. A purchase order, pro forma invoice, or payment proof alone is not necessarily sufficient. |
| Was the supply received? | Goods or services were actually received. For goods supplied in lots or instalments, the statutory condition generally ties entitlement to receipt of the last lot or instalment. |
| Did the supplier report the details? | Relevant invoice or debit-note details were furnished through the statutory outward-supply process and communicated to the recipient as required by law. |
| Has tax been dealt with correctly? | Tax charged on the supply is paid to the Government within the statutory framework. Reverse-charge tax must be paid by the recipient before taking the corresponding eligible credit. |
| Was the return filed? | The relevant GST return containing the claim has been furnished. |
| Is any restriction triggered? | Section 17 apportionment, Section 17(5) blocked-credit rules, payment-related reversal, credit notes, non-receipt, or another statutory restriction has been considered. |
These checks apply in combination. Passing one check does not cure a failure on another.
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What Section 16 requires before you claim
1. Registration and business purpose
ITC is available to a registered person only within the statutory limits. Start by identifying the GST registration that received the supply and the business activity to which it relates. A cost that benefits an owner’s personal activity, an employee’s private use, or another non-business purpose cannot simply be treated as fully creditable because the vendor charged GST.
Where an item serves both business and non-business purposes, isolate the business portion and retain the allocation basis. Section 17 may require a proportionate reduction rather than an all-or-nothing decision.
2. A valid tax document
The normal starting document is the supplier’s tax invoice or debit note. Rule 36 also recognises other prescribed tax-paying documents in specified situations. Verify the supplier’s GST details, document number and date, taxable value, tax amounts, nature of supply, and the recipient registration details required for the transaction. Keep the document in a form that can be produced during an audit or assessment.
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A purchase order proves that an order was placed; a pro forma invoice is generally not the tax document on which to base a claim; and a bank statement proves payment, not the full statutory entitlement. These records can support the file, but they do not replace the prescribed document.
3. Supplier reporting and communicated details
The supplier must furnish the relevant invoice or debit-note information through the statutory process so that it is communicated to the recipient as required by the law. A mismatch between your invoice and the supplier-reported data should be investigated before claiming or should be tracked with a documented resolution plan consistent with the applicable rules and return instructions.
4. Actual receipt of goods or services
Keep evidence that the supply was received. For goods, that may include a delivery note, goods-received note, transport record, warehouse entry, serial-number record, or inspection and acceptance record. For services, retain the engagement, work product, milestone approval, timesheet, completion certificate, or other evidence appropriate to the service.
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When goods arrive in lots or instalments, the statutory condition generally links entitlement to receipt of the final lot or instalment. The Act also contains defined bill-to/ship-to and directed-service situations that can treat the recipient as having received the supply; document the facts that place the transaction within the relevant provision.
5. Tax payment and reverse charge
Section 16 includes a condition concerning payment of the tax charged on the supply to the Government, subject to the statutory framework. Reverse-charge supplies follow a different sequence: the recipient pays the reverse-charge tax, reports it as required, and then considers the eligible ITC in the corresponding return treatment. The GST Portal advises taxpayers to pay reverse-charge tax and to self-assess the resulting credit rather than relying only on the auto-drafted statement.
6. Filing the relevant return
The claim must be taken through the relevant GST return. Reconcile the amount in the purchase ledger, the eligible-credit working paper, and the return before filing. If the return has already been filed with an error, use the correction, reversal, or reclaim mechanism available for that form and period; do not silently change the accounting ledger without aligning the tax reporting trail.
Which documents should you retain?
A defensible ITC file connects the tax document, the physical or service receipt, the accounting entry, the tax-system data, and the legal conclusion. Retain, as relevant:
- Supplier tax invoice, debit note, or other prescribed document.
- Purchase order or contract showing what was ordered and on whose behalf.
- Delivery challan, e-way or transport evidence where applicable, goods-received note, inspection record, or service acceptance evidence.
- Purchase register, general-ledger entry, and cost-centre or project coding tied to the document number.
- GSTR-2B download or reconciliation file showing the supplier-reported status and the date of review.
- Correspondence with the supplier about missing, amended, duplicated, or incorrectly reported invoices.
- Bank or payment records, with invoice-level allocation where a payment covers several invoices or is made in instalments.
- Business-purpose memo and allocation working for mixed business/non-business or taxable/exempt use.
- Blocked-credit review, reversal calculation, interest computation, and later-reclaim support.
- Filed return acknowledgements and annual-return workings for the relevant financial year.
No checklist replaces the prescribed document rules or the facts of the transaction. The purpose of the file is to show how each statutory condition was tested.
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What GSTR-2B is
GSTR-2B is a read-only, auto-drafted statement generated from supplier and input service distributor information, together with specified import information. It is designed to help a taxpayer report ITC in GSTR-3B. It is a control report, not an approval order and not a substitute for the Act, Rules, invoice, or receipt evidence.
What to do every period
- Download the applicable GSTR-2B and freeze the version used for the return working.
- Match each line to the purchase register by supplier GSTIN, invoice or debit-note number, date, taxable value, and tax amount.
- Investigate missing, amended, or duplicate lines with the supplier and preserve the follow-up.
- Remove duplicate credits and identify credit notes or amendments that reduce an earlier claim.
- Test legal restrictions that the statement cannot identify, including business-use allocation, blocked categories, receipt status, payment-related reversal, and other facts known only to you.
- Separately calculate reverse-charge tax and the corresponding eligible credit after payment.
- Carry the approved amount into the return and retain the reconciliation and reviewer sign-off.
The GST Portal’s GSTR-2B FAQ states: “Taxpayers are advised to ensure that the data generated in Form GSTR-2B is reconciled with their own records and books of accounts.” The same guidance warns against duplicate credit, requires reversals under the Act and Rules, and directs taxpayers to pay reverse-charge tax.
Can you claim ITC when it is not in GSTR-2B?
Do not treat the absence of an entry as an automatic answer in either direction. First determine why it is missing, whether the supplier has furnished the required details, and what the applicable law and return instructions permit for the period. If the legal conditions are not met, defer or reverse the credit. If a correction later brings the transaction into the permitted framework, keep the original document, the supplier follow-up, and the basis for any subsequent claim.
Does an entry in GSTR-2B mean the credit is approved?
No. The official FAQ says eligibility remains subject to the Act and Rules. GSTR-2B may not identify every legal reason a credit is unavailable, so an entry can still fail because of non-business use, a Section 17(5) restriction, non-receipt, duplicate claiming, payment-related reversal, or another fact not visible in the statement.
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Section 17: apportionment and blocked credit
Use-based apportionment
Section 17 distinguishes credit attributable to business use from credit attributable to non-business use. It also distinguishes taxable or zero-rated supplies from exempt supplies. A common input or service used across those activities generally requires proportionate allocation and reversal under the prescribed method.
Common inputs and services: Rule 42
Rule 42 provides the calculation framework for common input and input-service credit. The result depends on the period’s supply values and the classification of credit into eligible, exclusively taxable, exclusively exempt, non-business, and common portions. Do not use a flat percentage without the underlying figures and the current rule formula.
Capital goods: Rule 43
Capital-goods credit has a separate calculation method under Rule 43. Maintain the asset register, in-service date, tax amount, and use across taxable and exempt activities so that the prescribed periodical amount can be computed and supported.
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Blocked categories under Section 17(5)
Section 17(5) lists categories for which ITC is blocked, subject to category-specific exceptions and conditions. Common examples discussed in practice include motor vehicles, food and beverages, construction-related works, and employee benefits, but the legal result depends on the exact category, use, statutory exception, and facts. Never approve or reject an item from a one-line rule of thumb; read the applicable clause and document the exception if one is relied upon.
When must ITC be reversed?
Supplier not paid within 180 days
Where a recipient has availed ITC but does not pay the supplier the value of the supply plus tax within 180 days from the invoice date, the second proviso to Section 16(2) requires an amount equal to the credit to be added to output tax liability with interest in the prescribed manner. The provision contains exceptions, including treatment for reverse-charge supplies, so confirm that the transaction falls within the rule before calculating.
This is a conditional reversal and reclaim mechanism, not necessarily a permanent loss. After payment to the supplier, the recipient may become entitled to the credit again, subject to the applicable Act, Rules, and return instructions. Keep proof of payment and allocate a consolidated payment to individual invoices where necessary.
Mixed taxable and exempt use
Rules 42 and 43 require periodic apportionment or reversal for common inputs, input services, and capital goods used for taxable and exempt supplies. The calculation is distinct from the 180-day payment rule. It uses supply and credit data for the relevant period, not simply the age of an unpaid invoice.
Goods or services not received
Credit taken before the statutory receipt condition is met may need to be reversed. For goods arriving in instalments, review whether the last lot has arrived. For services, confirm that the contracted service was actually supplied. When receipt is later established, assess whether and when reclaim is permitted and retain the supporting evidence.
Other statutory triggers
Credit notes, supplier amendments, duplicate claims, return-compliance conditions, changes in use, and other ineligible situations can reduce or reverse ITC. GSTR-2B’s “not available” display covers specified cases only; it does not make the taxpayer’s independent legal review optional.
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How to reclaim after a reversal
- Identify the exact reason and legal provision for the original reversal.
- Record the invoice, original credit amount, reversal date, tax and interest treatment, and return table used.
- Obtain the evidence that cures the condition, such as supplier payment proof or receipt of the final lot of goods.
- Confirm that no separate restriction still applies, including a Section 17(5) block, exempt-use allocation, or statutory time bar.
- Claim the eligible amount in the return permitted for the relevant period and preserve the calculation.
- Reflect the original claim, reversal, and reclaim separately in the annual-return working, following the form instructions for that financial year.
The GST Portal’s FY 2024-25 annual-return FAQ illustrates separate reporting of the original claim, reversal, and later reclaim, including examples involving non-payment within 180 days and goods not yet received. Those table references are year-specific instructions, not permanent table numbers; verify the form and year before filing.
What is the deadline to claim ITC?
Section 16(4) imposes a time bar for taking credit on invoices or debit notes, but there is no safe universal calendar date to quote for every transaction. Amendments, transitional provisions, annual-return status, invoice financial year, and special exceptions can change the applicable date.
For each invoice, record its financial year, the relevant return and annual-return filing dates, and any amendment or special provision that may apply. Check the current official text of Section 16 and the applicable notifications and return instructions before giving a deadline or filing a late claim. If the date is uncertain, obtain advice from a GST practitioner rather than relying on an old calendar rule.
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- Capture: Post the invoice or debit note only after checking the supplier document and GST registration details.
- Prove receipt: Attach the goods-received or service-acceptance evidence to the accounting record.
- Reconcile: Match the purchase register to GSTR-2B and log every mismatch.
- Classify: Mark normal charge or reverse charge, taxable or exempt use, business or non-business use, capital or revenue item, and any Section 17(5) category.
- Calculate: Apply Rule 42 or Rule 43 where common credit exists and identify any payment-related or non-receipt reversal.
- File: Report only the amount that survives the legal and documentary checks in the relevant return.
- Monitor: Track unpaid invoices approaching 180 days, supplier corrections, credit notes, and evidence needed for reclaim.
- Archive: Preserve the reconciliation, reviewer approval, return acknowledgement, and invoice-level working under your record-retention policy.
Common mistakes and how to correct them
| Mistake | Why it fails | Better control |
|---|---|---|
| Claiming everything visible in GSTR-2B | The statement does not test every statutory restriction. | Perform an independent Section 16 and Section 17 review. |
| Using a purchase order or pro forma invoice as the tax document | Those records do not necessarily satisfy Rule 36 document conditions. | Obtain and retain the prescribed invoice, debit note, or other permitted document. |
| Claiming before receipt | Receipt is a statutory condition, with special rules for lots and directed supplies. | Hold the credit or reverse it until receipt is established. |
| Ignoring the 180-day test | Non-payment can trigger output-tax addition and interest. | Run an ageing report linked to invoice-level ITC. |
| Applying one blanket rule to blocked credits | Section 17(5) categories have different exceptions and conditions. | Map the exact clause and facts before approving the credit. |
| Combining reversal and reclaim in one annual-return figure | The year-specific form may require separate reporting. | Maintain a claim-reversal-reclaim roll-forward and follow that year’s instructions. |
Records to hand to your GST adviser
For a transaction under review, provide the invoice or debit note, proof of receipt, ledger posting, GSTR-2B line and reconciliation notes, supplier correspondence, payment allocation, use-based allocation, blocked-credit analysis, reversal and interest working, and the return or annual-return entries. This package lets the adviser test the facts against the current CGST, SGST, IGST, Rules, notifications, and portal instructions instead of making a conclusion from the invoice alone.
This article is general information, not a determination of a particular taxpayer’s claim. GST provisions, judicial interpretations, notifications, and portal forms can change; verify the current official text for the invoice’s period and obtain fact-specific professional advice where the amount or risk is material.
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