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Under India’s GST framework, a registered person can generally claim input tax credit (ITC) on goods or services used or intended for use in business—but only when the statutory conditions are met and no restriction or reversal rule applies. An invoice or GSTR-2B entry is not, by itself, proof that a credit is claimable. Check the supply, its business use, the applicable restrictions, supporting documents and claim deadline before taking credit.
Who can claim input tax credit under GST?
Section 16(1) of the Central Goods and Services Tax Act, 2017 (CGST Act) gives a registered person a general entitlement to credit of input tax charged on goods or services supplied to them when those purchases are used or intended to be used in the course or furtherance of business. That entitlement is subject to the Act’s conditions, restrictions and prescribed procedures. The framework below concerns India’s CGST provisions; corresponding SGST or UTGST rules and the facts of a particular transaction can also matter.
The first distinction is between a purchase that qualifies in principle and the amount of credit that may actually be taken. Business purpose is necessary, but it does not override a blocked-credit provision, exempt or non-business use, a missing condition, or a later event requiring reversal. See the CGST Act, Chapter V and the CBIC Input Tax Credit Rules.
What conditions must be met before claiming ITC?
Section 16(2) sets out core conditions. Treat them as a transaction-by-transaction check rather than assuming that a purchase ledger entry or portal statement settles eligibility.
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- Hold a prescribed tax document. This may be a tax invoice, debit note or another document allowed by the GST rules for the transaction.
- Receive the goods or services. For goods received in lots or instalments, the Act provides that credit is available on receipt of the last lot or instalment.
- Check the tax-payment condition. The tax charged must be paid to the government, subject to the statutory framework, including section 41.
- Furnish the required return. Section 16(2) makes furnishing the return under section 39 a condition.
- Confirm business use and eligible output. Check whether the purchase is for business and whether it relates to taxable or zero-rated supplies, exempt supplies, or non-business use.
- Screen for blocked credit and timing issues. Check section 17(5), the claim deadline, and any later event that could require an adjustment.
If claiming depreciation under the Income-tax Act on the tax component of capital-goods cost, section 16(3) bars ITC on that same tax component. Do not claim both forms of tax benefit on the same amount.
Which expenses are blocked under GST?
Section 17(5) identifies categories of credit that are blocked, subject to exceptions written into the provision. The label “blocked” should not be applied to an expense solely because of its everyday description: the exact supply, purpose and statutory exception can change the result.
| Category to examine | What to verify |
|---|---|
| Certain motor vehicles and conveyances | Check the vehicle type, its use and the business categories for which the Act permits credit. |
| Food and beverages, outdoor catering, beauty or health services, cosmetic or plastic surgery, club or fitness-centre membership, rent-a-cab, insurance and employee vacation travel benefits | Check the particular section 17(5) subclause. Some categories have exceptions, including circumstances involving the same-category taxable outward supply or a legal obligation to provide the service. |
| Works-contract services for construction of immovable property | Check the nature and use of the property and the statutory treatment of works-contract services; the Act provides relevant distinctions and exceptions. |
| Goods or services used to construct immovable property on the recipient’s own account | Check whether the statutory construction restriction applies and whether the property or item falls within an applicable exception, including the treatment of plant and machinery. |
| Goods or services taxed under the composition scheme; specified supplies to a non-resident taxable person; personal-consumption purchases | Confirm that the purchase falls within the wording of the relevant provision. The non-resident taxable person restriction has an exception for imported goods. |
| Goods lost, stolen, destroyed, written off, gifted or supplied as free samples | Check whether the goods fall within one of the listed circumstances. |
| Tax paid in specified demand or enforcement circumstances | Check the particular statutory basis on which the tax was paid. |
This is a practical map, not a substitute for the full wording of section 17(5). Verify the applicable subclause and exception against the official CGST Act text before deciding a specific expense. A category that appears relevant may still be treated differently under an express exception; conversely, a business purpose alone does not remove a statutory block.
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How do business use and exempt supplies affect common credit?
Not every purchase is used exclusively for taxable business activity. Section 17(1) restricts credit attributable to non-business use, while section 17(2) restricts credit attributable to exempt supplies. Zero-rated supplies are treated differently from exempt supplies for this purpose: the Act allows credit for zero-rated supplies, subject to section 17(5) blocks.
| Use of the purchase | General ITC treatment |
|---|---|
| Exclusively for business and taxable or zero-rated supplies | May be eligible, subject to section 16 conditions and any blocked-credit rule. |
| Exclusively for non-business use or exempt supplies | Credit attributable to that use is restricted. |
| Commonly used for business and non-business purposes, or for taxable/zero-rated and exempt supplies | Apportion or reverse the restricted portion under the prescribed rules. |
Rules 42 and 43 prescribe calculations for common inputs and input services, and for capital goods respectively. The calculation depends on the taxpayer’s actual use and the applicable rule requirements; there is no single percentage that can be applied to every mixed-use purchase. The CBIC ITC Rules set out the prescribed method.
When must previously claimed ITC be reversed?
A later event can require an adjustment even where credit was initially claimed. A payment-related reversal is different from a permanently unavailable blocked credit: the payment rule can permit the credit to be taken again after the required payment is made.
Non-payment to the supplier within 180 days
Under the proviso to section 16(2), if a recipient claims ITC but does not pay the supplier the value of the supply plus tax within 180 days from the invoice date, the credit is added to output tax liability with interest in the prescribed manner. The recipient may take the credit again when payment of the value and tax is made. The 180-day proviso does not apply to supplies on which tax is payable under reverse charge. Rule 37 addresses the adjustment and interest period; check the Act and Rules for the applicable treatment.
Other adjustments
Apportionment of common credit under rules 42 and 43 can require reversal of the portion attributable to exempt or non-business use. Section 17(5) ineligible credit must not be treated as though it were simply a temporary payment-timing reversal. Changes in use or other transaction-specific events may also affect the amount retained; assess the governing provision and records for the particular credit.
Does GSTR-2B mean the credit is claimable?
No. GSTR-2B is useful for matching and review, but it does not establish every condition for the recipient. The GST portal says taxpayers may avail credit based on amounts indicated in GSTR-2B only “as per availability/ eligibility of ITC”; it also advises self-assessment because other ineligibility circumstances may not be generated by the system. A portal entry therefore does not cure a blocked credit, lack of receipt, non-business use, exempt-supply attribution or another unmet statutory condition. See the GST portal GSTR-2B FAQ.
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CBIC Circular 170/02/2022-GST, dated 6 July 2022, clarifies reporting treatment in GSTR-3B and GSTR-1 for matters including rule 42/43 reversals, section 17(5) ineligible ITC, credit where the supply was not received and rule 37 payment reversals. Its examples describe the table framework addressed in that circular; return forms and instructions can change, so consult current portal instructions before filing. The circular is available at CBIC Circular 170/02/2022-GST.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What is the time limit to claim ITC?
As described in CBIC Circular 237/31/2024-GST, dated 15 October 2024, the general section 16(4) deadline is 30 November following the end of the financial year to which the invoice or debit note pertains, or the date the relevant annual return is furnished, whichever is earlier. The deadline must be assessed against the relevant financial year and return history.
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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →The Finance (No. 2) Act, 2024 inserted sections 16(5) and 16(6) retrospectively from 1 July 2017 to provide time-limit relief for specified cases. The circular explains that this relief applies where denial is solely for contravention of section 16(4); it does not make credit available if another independent ground renders it ineligible. Because this is a time-sensitive statutory area, check the circular and the applicable law for the year and facts at issue rather than treating the special relief as a new universal deadline. Read CBIC Circular 237/31/2024-GST.
How are zero-rated supplies treated?
Under section 16 of the IGST Act, exports and supplies to an SEZ developer or SEZ unit are zero-rated supplies. Credit is allowed for zero-rated supplies notwithstanding their exempt treatment, but this does not override section 17(5) blocked-credit provisions. The IGST Act describes refund routes, including making a supply under bond or Letter of Undertaking without payment of IGST and seeking refund of unutilized credit, subject to applicable conditions. See section 16 of the IGST Act.
A practical decision sequence for each purchase
- Confirm that the claimant is a registered person and identify the supply and applicable tax document.
- Record when the goods or services were received and verify the relevant tax and return conditions.
- Determine whether the purchase is for business, and whether its use is exclusive or shared with non-business activity.
- Identify whether the related output is taxable, zero-rated or exempt, then apply the relevant attribution rules for shared use.
- Check the exact section 17(5) category and any applicable exception.
- Check the time limit for the invoice or debit note, including whether a specific statutory relief applies to the case.
- Track later events—particularly supplier payment timing and changes in use—that may require reversal, adjustment or re-availment.
- Reconcile against GSTR-2B, but make the eligibility decision under the Act and Rules; follow the current return instructions for reporting.
For a real claim, the result depends on the invoice or other prescribed document, receipt, business use, supply mix, payment and return history, and the law applicable to the relevant period. The CGST framework gives the decision points; those facts determine how they apply.
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