The 6 Mandatory Conditions to Claim Input Tax Credit (ITC) under GST

Input Tax Credit (ITC) is the lifeblood of the Goods and Services Tax (GST) system. It prevents the cascading "tax on tax" effect, ensuring that the final consumer bears the true tax burden while businesses along the supply chain remain neutral.

Because ITC directly reduces the amount of cash a business must pay the government, it is scrutinized closely during audits. To protect revenue while facilitating legitimate business, the government enforces strict statutory conditions under Section 16 of the Central Goods and Services Tax (CGST) Act, 2017.

Simply holding a piece of paper that says "Tax Invoice" is not enough to survive scrutiny. If you fail any statutory condition, tax authorities can disallow your credit and demand recovery with 18% interest.

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Condition 1: Possession of a Valid Tax Document

You must hold a valid tax invoice, debit note, or bill of entry issued in accordance with Section 31 and Rule 46 of the CGST Rules. Key statutory elements required on the document include:

• Proper GSTIN of both the supplier and recipient;
• Description, HSN code, and quantity of goods or services;
• Taxable value, tax rate, and exact tax amounts broken into CGST, SGST, or IGST;
• Document Identification Number (DIN) where issued by tax authorities.

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Condition 2: Actual Receipt of Goods or Services

Under Section 16(2)(b), you must have physically received the goods or actually received the services.

• Bill-to-Ship-to Exception: Under the statutory explanation to Section 16(2)(b), goods are deemed received by a registered person when delivered to a third party upon direction or instruction of the buyer before or during movement of goods.
• Installment Deliveries: Where goods are received in lots or installments against a single invoice, credit can only be availed upon receipt of the final lot or installment.

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Condition 3: Tax Must Be Deposited to the Government (Section 16(2)(c))

Under Section 16(2)(c), credit is contingent on the tax charged having been actually deposited into the Government treasury by the supplier, either in cash or through utilization of admissible Input Tax Credit.

Judicial Precedent and 57th GST Council Safeguards:
The Supreme Court in Bhandari Scrap Traders vs. Union of India (SLP (C) No. 23931 of 2026) upheld the constitutional validity of Section 16(2)(c). On 01.09.2026, the Supreme Court stayed the Tripura High Court's judgments in Sahil Enterprises and Malaya Rub-Tech (SLP (C) No. 31573/2026). However, recognizing the intense compliance strain on genuine buyers, the 57th GST Council (October 8, 2026) constituted a specialized Committee of Officers to draft statutory mechanisms protecting bona fide buyers who possess valid tax invoices, e-way bills, and bank payment trails from automatic credit reversals upon supplier default. Track all rulings in our Section 16(2)(c) Litigation Tracker.

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Condition 4: Filing Your Own GST Return (GSTR-3B)

Under Section 16(2)(d), you must actively claim the credit by declaring it in Table 4 of your monthly or quarterly GSTR-3B return. An unfiled return or informal ledger entry confers no statutory right to credit.

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Condition 5: Invoice Reflection in Form GSTR-2B

Under Section 16(2)(aa), the details of the invoice or debit note must have been furnished by the supplier in their statement of outward supplies (Form GSTR-1 or Invoice Furnishing Facility), and such details must have been communicated to the recipient in Form GSTR-2B.

If an invoice is not visible in your GSTR-2B, the credit cannot be availed in GSTR-3B for that tax period.

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Condition 6: Payment to Supplier within 180 Days

Under the second proviso to Section 16(2), the recipient must pay the supplier the amount towards the value of supply along with tax within 180 days from the invoice date.

• Consequence of Non-Payment: If payment is not completed within 180 days, an amount equal to the ITC availed must be paid along with applicable interest under Section 50.
• Re-Availment: Once the payment is eventually disbursed to the supplier, the taxpayer is entitled to re-claim the reversed credit without any limitation deadline.

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The Overriding Block: Section 17(5)

Even if all six statutory conditions are satisfied, credit is denied if the expenditure falls within the negative list of Section 17(5) Blocked Credits.

• Blocked Items: Passenger motor vehicles (seating capacity up to 13 persons), food, beverages, outdoor catering, club memberships, and goods lost or gifted.
• 57th GST Council Expansion: The 57th GST Council recommended unblocking ITC on employee group health and life insurance policies, external industrial pipelines, telecom towers, and commercial samples.

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Common Compliance Errors

1. Claiming ITC on Proforma Invoices: Proforma invoices are non-binding estimates. Claiming credit without a tax invoice satisfying Rule 46 is invalid.
2. Missing the Statutory Time Bar: Under Section 16(4), the deadline to avail ITC for an invoice issued during a financial year is November 30 following the end of that financial year, or the date of furnishing the relevant annual return, whichever is earlier.
3. Ignoring Retention Money Adjustments: Where commercial contracts retain 10% to 15% of invoice value beyond 180 days as performance security, proportionate credit must be regularized.

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Conclusion

Securing your company's Input Tax Credit requires seamless cross-functional alignment. The procurement team must verify physical delivery of goods, the accounts payable team must ensure payments clear within 180 days, and the tax department must perform rigorous monthly reconciliations between ERP purchase ledgers and GSTR-2B statements.