How to Claim Input Tax Credit — Section 16, Step by Step

Section 16 requires: (1) you hold a valid tax invoice, debit note or Bill of Entry; (2) you have actually received the goods or services; (3) the tax has been paid to the government and appears in your GSTR-2B (supplier filed GSTR-1); and (4) you have furnished your GSTR-3B return. All four must be met. A fifth requirement applies to credit purchases — pay the supplier within 180 days or reverse the credit.

GSTR-2B is your static, auto-drafted input tax credit statement, generated on the 14th of each month from your suppliers' GSTR-1 filings. Since Rule 36(4) removed provisional ITC from 1 January 2022, you can claim only the credit that appears in GSTR-2B. That is why monthly reconciliation of GSTR-2B against your purchase register is essential before filing GSTR-3B.

You claim ITC in Table 4 of GSTR-3B, the monthly (or quarterly under QRMP) summary-and-payment return due by the 20th (22nd/24th for quarterly filers). GSTR-2B only shows the credit available to you; the actual claim and set-off against output tax happens in GSTR-3B.

Under Section 16(4), ITC for a financial year must be claimed by the earlier of: (a) the GSTR-3B for the period up to 30 November of the next financial year, or (b) the date of filing the annual return GSTR-9. For example, ITC on a FY 2024-25 invoice must be claimed by 30 November 2025 (or the GSTR-9 date if earlier). Miss it and the credit lapses permanently.

The credit lapses and cannot be recovered — it becomes a permanent cost. There is generally no amnesty or extension for expired ITC. This is why delayed accounting is risky: prioritise downloading GSTR-2B and claiming eligible ITC well before the 30 November cut-off of the following year.

The usual cause is that your supplier has not filed (or has wrongly reported) their GSTR-1. Steps: (1) contact the supplier and ask them to file or amend GSTR-1 with your invoice; (2) verify that GSTIN, invoice number, date and taxable value in your books exactly match what the supplier reports; (3) wait for GSTR-2B to refresh after they file. Do not claim ITC that is absent from GSTR-2B — Rule 36(4) does not permit it and it invites demand and 18% interest.

Yes. Section 16(2)(c) requires the tax to have actually been paid, and Rule 37A requires you to reverse the ITC (with 18% interest) if the supplier fails to pay by 30 September of the next financial year — the reversal is due by 30 November. If the supplier later pays, you can re-claim the credit. This makes checking supplier GSTIN filing status important for large or new vendors.

No. Section 16(2)(b) allows ITC only after the goods or services are actually received. A receipt voucher for an advance does not entitle you to ITC. For goods delivered in instalments, ITC is available only when the last instalment is received. For continuous services, ITC arises when the periodic invoice is issued and the service period has begun.

Section 17(5) permanently blocks ITC on specified items regardless of business use — including passenger motor vehicles (with exceptions), food and beverages, outdoor catering, beauty and health services, club and gym memberships, life and health insurance (unless mandatory), works-contract services for immovable property (except plant and machinery), goods and services for personal consumption, and goods lost, stolen, destroyed or given as free samples. Claiming blocked ITC is an offence attracting demand plus penalty.

Under the second proviso to Section 16(2), if you do not pay your supplier the invoice value plus tax within 180 days of the invoice date, you must reverse the ITC already claimed, along with interest. Once you make the payment, you can re-claim the credit — there is no time limit on this re-claim after payment.

For RCM supplies (e.g. legal services, goods transport agency, import of services), you first pay the GST in cash in GSTR-3B — you cannot use your ITC balance to discharge RCM liability. Once paid, you can claim ITC on that RCM tax in the same or a later GSTR-3B, subject to the usual Section 16 conditions and Section 17(5) blocks. Raise a self-invoice when receiving RCM supplies from an unregistered supplier.

No. Reverse-charge liability must always be discharged in cash through the electronic cash ledger; the electronic credit (ITC) ledger cannot be used to pay RCM. After the cash payment, the corresponding ITC (if eligible) can be claimed and then used against your normal output tax.

You need a valid tax invoice or debit note from a registered supplier (or a Bill of Entry for imports, or a self-invoice for RCM from unregistered suppliers), showing both GSTINs, HSN/SAC, taxable value and the CGST/SGST/IGST split. The credit must also appear in your GSTR-2B. Proforma invoices, quotations, purchase orders and composition-dealer bills of supply do not support an ITC claim.

Yes — it is the single most important ITC control. Monthly reconciliation of GSTR-2B against your purchase register catches missing supplier filings, mismatched values and duplicate or blocked credits before you file GSTR-3B. Doing it monthly also ensures no eligible credit slips past the Section 16(4) time limit, and it feeds the annual books-vs-2B-vs-3B reconciliation reported in GSTR-9.

No. The GST 2.0 rate rationalisation effective 22 September 2025 moved most goods and services into a 5% or 18% slab (with a 40% demerit rate) but did not change how ITC works. The Section 16 conditions, GSTR-2B matching under Rule 36(4), the Section 17(5) blocked credits and the Section 16(4) time limit all continue as before.