BharatNotes What is Input Tax Credit (GST)?
Input Tax Credit (ITC) allows a GST-registered business to deduct the tax it has already paid on its purchases (inputs, input services and capital goods) from the tax it must pay on its sales. If a manufacturer pays ₹100 GST on raw materials and collects ₹150 GST on the finished product, it remits only the ₹50 difference to the government. This "credit chain" is what makes GST a multi-stage, destination-based value-added tax and is the principal reason GST removed the cascading "tax on tax" of the earlier excise-VAT-service-tax regime.
Conditions to claim ITC (Section 16, CGST Act, 2017)
A registered person may claim ITC on goods or services used in the course or furtherance of business only if all of the following are met:
| Condition | Requirement |
|---|---|
| Valid document | Possession of a tax invoice or debit note from a registered supplier |
| Supplier reporting | Invoice details furnished by the supplier and communicated to the recipient (GSTR-1 / GSTR-2B) |
| Receipt | Goods or services have actually been received |
| Tax paid to govt. | The supplier has actually paid the tax to the government |
| Return filed | The recipient has filed the GSTR-3B return under Section 39 |
Time limit: ITC for an invoice/debit note cannot be taken after 30 November following the end of the relevant financial year, or the filing of the annual return, whichever is earlier (Section 16(4)). If depreciation is claimed on the tax component of capital goods under the Income-tax Act, 1961, ITC on that component is disallowed.
Blocked credits and apportionment (Section 17)
Section 17(5) lists blocked credits where ITC is barred even if used for business — these include motor vehicles for transport of persons (with exceptions), food and beverages, outdoor catering, beauty treatment and health services, membership of clubs, and goods/services for construction of immovable property on one's own account. Where inputs are used partly for business/taxable supplies and partly for non-business or exempt supplies, credit is apportioned to the taxable portion (Sections 17(1)–(2), Rules 42–43).
Order of utilisation (Sections 49, 49A, 49B; Rule 88A)
The credit ledger must be set off in a prescribed order. IGST credit must be fully exhausted first — applied to IGST liability, then to CGST and SGST in any order — before CGST or SGST credit is used. Crucially, cross-utilisation of CGST and SGST is not permitted, preserving the Centre-State revenue split. These rules took effect from 1 February 2019 (Sections 49A/49B) and 29 March 2019 (Rule 88A, Notification 16/2019-Central Tax).
Significance and current status
ITC widens the tax base by incentivising buyers to transact only with compliant, registered suppliers, thereby formalising the economy. Its integrity directly affects revenue: India recorded its highest-ever gross GST collection of ₹22.08 lakh crore in FY 2024-25, up 9.4% year-on-year (PIB, April 2025), with over 1.51 crore active registrations (as of 30 April 2025). The flip side is fake-invoicing fraud, where bogus invoices are used to claim ITC without any real supply — a recurring enforcement and policy concern.
UPSC angle
For Prelims, master the Section 16 conditions, Section 17(5) blocked credits, and the IGST-first utilisation rule. For GS3 Mains, frame ITC as the instrument that ended cascading, deepened formalisation and fiscal federalism, while flagging leakages (ITC fraud, mismatch litigation, working-capital blockage from delayed refunds).
