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You can generally claim GST input tax credit (ITC) in India when you are a registered person and a purchase is used or intended for your business—but only if the statutory conditions are met. A business connection alone is not enough: you must also check the prescribed document, receipt of the supply, applicable restrictions, return and payment conditions, and the claim deadline. GSTR-2B helps with reconciliation; it does not confirm that every listed amount is legally eligible.
Who can claim GST input tax credit?
Section 16(1) of the Central Goods and Services Tax Act, 2017 (CGST Act) provides the general entitlement to a registered person for goods or services used, or intended to be used, in the course or furtherance of business. The entitlement remains subject to the Act and rules, including limits for exempt or non-business use and blocked credits. Depending on the transaction, corresponding state or union-territory GST or IGST provisions may also matter.
For example, a purchase used partly for business and partly for a personal purpose does not automatically qualify in full. The eligible portion must be assessed under the applicable apportionment rules. The same principle applies where inputs serve both taxable or zero-rated supplies and exempt supplies.
What conditions must be met?
Section 16(2) sets out conditions that operate together. Before including an amount in a return, check the transaction against each applicable requirement.
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- Prescribed tax document: Hold an eligible document, such as a supplier tax invoice or debit note, a bill of entry for imported goods, or a specified self-invoice or Input Service Distributor (ISD) document, as relevant. Check that it contains the required particulars.
- Receipt: The goods or services must have been received. If goods covered by one invoice arrive in lots or instalments, the Act links the credit to receipt of the last lot or instalment.
- Tax and return conditions: The tax charged must be paid to the government within the statutory framework, and the recipient must furnish the required return. A valid-looking invoice alone does not satisfy every condition.
- No disqualifying use or restriction: Apply the rules for non-business and exempt-supply use, blocked credits, and any other relevant restriction.
There is also a restriction where depreciation has been claimed on the tax component of capital goods: ITC cannot be claimed on that same tax component.
Which purchases may be blocked or need apportionment?
Section 17 addresses both apportionment and categories of blocked credit. Its exceptions are important, so do not assume that every expense with a business purpose qualifies—or that every expense in a named category is always barred.
Non-business and exempt-supply use
Where an inward supply is used partly for purposes other than business, or partly for exempt supplies, credit may need to be restricted or apportioned. Keep a supportable calculation for the business and eligible-supply portion rather than claiming the whole tax amount by default.
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Section 17(5) includes specified motor vehicles and conveyances; food, beverages and catering; certain personal or employee benefits; club or fitness-centre membership; and certain insurance or rent-a-cab expenses. The Act provides exceptions and conditions within these categories. For instance, vehicle-related credit can depend on the vehicle and the nature of the business; specified vehicle-supply or training businesses are among the kinds of exceptions identified in the law. Check the current provision against the exact purchase rather than relying on a broad category label.
How to reconcile GSTR-2B and claim eligible ITC
GSTR-2B is a static monthly statement based on information furnished through supplier and e-commerce operator filings. The notified instructions advise taxpayers to refer to it when preparing GSTR-3B, and permit consulting GSTR-2A for additional near-real-time detail. But the statement is a reconciliation aid, not a legal approval: the instructions also require taxpayers to self-assess and reverse ineligible credit that the system may not identify.
- Collect the transaction document. Match the purchase to its permitted invoice, debit note, bill of entry, ISD document or other relevant document, and check its particulars.
- Confirm receipt and business use. Verify delivery or service receipt, including the final lot for goods delivered in instalments under one invoice. Identify any non-business or exempt-supply use that affects the eligible amount.
- Compare your records with GSTR-2B. Check supplier-reported entries against your purchase ledger and source documents, including invoice particulars, GSTIN, place of supply and tax period. Investigate missing or inconsistent entries with the supplier and preserve the correspondence.
- Apply the legal tests independently. Review blocked-credit rules and exceptions, apportionment, special transaction rules, payment status and the time limit. Do not rely solely on portal indications.
- Report only eligible credit and make required reversals. Claim eligible amounts in GSTR-3B and report reversals in the applicable fields. The notified instructions identify certain reversals for GSTR-3B table 4(B)(2); the correct treatment depends on the kind of reversal.
- Keep a reconciliation trail. Retain documents and workings that support receipt, business use, apportionment, supplier follow-up, payment tracking and the figures reported in the return.
A mismatch in GSTR-2B should be investigated; it does not, by itself, settle every question of legal entitlement. Conversely, an entry appearing in GSTR-2B does not prove that the purchase was received, used for eligible purposes, or free from a statutory restriction.
Special cases: imports, reverse charge, ISD and composition suppliers
Some transactions have additional documentary or procedural rules in the CGST Rules. Imports, reverse-charge supplies, services distributed through an ISD, job work, changes in registration or tax status, and business transfers may each require a transaction-specific check.
Reverse charge
A recipient who pays tax under reverse charge may claim ITC if the section 16 conditions are fulfilled. Verify the applicable tax-payment and documentation requirements for the specific supply before claiming the credit.
Composition supplier
A composition taxpayer does not charge GST to the recipient in the ordinary way. Because there is no GST charged on that purchase for the recipient to claim as input tax, the buyer cannot claim ITC for a tax amount that was not charged.
Payment to the supplier and the 180-day rule
Under the rules, if the recipient does not pay the supplier the value of the supply plus tax within 180 days from the invoice date, the related credit is generally subject to reversal or addition to output tax liability, with interest. The rule text provides for interest for the period from when the credit was availed until the amount added to output liability is paid. The rules also provide for re-availment after payment and address reversals in other circumstances. Check the applicable rule and facts, including any relevant exception, before calculating an adjustment.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What is the deadline to claim ITC?
For the general rule in section 16(4), ITC for a relevant invoice or debit note must be claimed by the earlier of these dates: filing the annual return for the financial year to which it relates, or 30 November following that financial year. The current general deadline is not the older September formulation found in some historical material.
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A practical invoice-by-invoice decision check
Before claiming a purchase, work through these questions in order:
- Were you registered for the relevant period, and is the purchase used or intended for business?
- Do you hold the right tax document, and have you received the goods or services?
- Can you reconcile the document and supplier reporting with your books and GSTR-2B?
- Is the use taxable or zero-rated, exempt, or partly non-business, and is apportionment required?
- Does the purchase fall within a blocked-credit category, and does a statutory exception apply?
- Have the relevant supplier-payment and other conditions been met?
- Which financial year and deadline apply, including any special provision for the transaction?
If any answer is uncertain—especially for a blocked-credit exception, older invoice, reverse-charge supply or Ex-Works delivery—check the current consolidated law, applicable notifications or circulars, and portal instructions for the relevant tax period before filing.
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