Input Tax Credit (ITC) Under GST

Input Tax Credit (ITC) is the mechanism under GST that allows a registered business to reduce its GST output liability by the amount of GST it has paid on its purchases and inputs. In other words, the GST you pay when buying goods or services for your business can be credited against the GST you collect when selling your own goods or services. Only the net amount — output GST minus input GST — is paid to the government.

How ITC Works: A Simple Example

A textile manufacturer:

• Buys raw fabric for ₹1,00,000 + GST ₹5,000 (5% rate) = pays ₹1,05,000 total
• Sells finished cloth for ₹2,00,000 + GST ₹20,000 (12% rate) = collects ₹2,20,000

Without ITC, the manufacturer would pay ₹20,000 GST to the government. With ITC, the manufacturer pays ₹20,000 − ₹5,000 = ₹15,000 to the government.

The ₹5,000 GST paid on the input (fabric) is the Input Tax Credit.

This cascading effect is eliminated throughout the supply chain — GST is effectively levied only on the value added at each stage.

Eligibility Conditions for Claiming ITC

Under Section 16 of the CGST Act, all four of the following conditions must be satisfied to claim ITC:

1. Valid Tax Invoice or Debit Note: You must have a valid GST invoice from a registered supplier. A commercial invoice without a GSTIN is not sufficient.

2. Goods or Services Actually Received: The goods must have been received by you (the claimant). For services, the service must have been rendered. ITC cannot be claimed before receipt.

3. Supplier Has Filed GSTR-1 and It Reflects in GSTR-2B: Your supplier must have declared the supply in their GSTR-1, so it appears in your GSTR-2B (the auto-drafted statement of available ITC). ITC claimed in GSTR-3B that does not appear in GSTR-2B is at risk of being disallowed by the department.

4. Payment Made to Supplier Within 180 Days: If you have not paid your supplier within 180 days of the invoice date, the ITC claimed must be reversed (added back to your output liability). Once payment is made, the ITC can be re-claimed.

Additionally, for capital goods, ITC must be tracked in a register and is subject to reversal if used for both taxable and exempt supplies.

What Cannot Be Claimed as ITC

Section 17(5) of the CGST Act specifically blocks ITC on certain categories of purchases, regardless of whether they carry GST:

• Motor vehicles — for transportation of persons (with seating capacity up to 13, including driver), unless used for further supply of vehicles, training, transportation of passengers or goods, or driving schools
• Food, beverages and outdoor catering — unless the supply is used for making a similar taxable outward supply
• Beauty treatment, health services, cosmetic or plastic surgery — unless in the same line of business
• Club memberships, health and fitness centre memberships
• Travel benefits to employees (leave travel, holidays)
• Works contract services for immovable property (construction, renovation of building) — except where the taxpayer is in the construction business
• Goods or services received for personal consumption
• Goods lost, stolen, destroyed, written off or distributed as free samples

These blocked categories are non-negotiable — no ITC can be claimed even if there is a valid invoice.

Reconciliation with GSTR-2B

GSTR-2B is the system-generated monthly statement of available ITC. It is auto-populated based on what your suppliers have declared in their GSTR-1 and GSTR-5. It is available by the 14th of the following month.

Best practice is to compare your purchase register (internal records) against GSTR-2B each month:

• Purchases in your records that appear in GSTR-2B: ITC available and claimable
• Purchases in your records that do NOT appear in GSTR-2B: Supplier has not filed; ITC risk
• Entries in GSTR-2B that you do not recognise: Possible error or duplicate filing by supplier

For invoices not appearing in GSTR-2B, follow up with your supplier to ensure they file their GSTR-1. ITC claimed on the basis of a valid invoice that does not appear in GSTR-2B can be claimed provisionally up to 5% of the total GSTR-2B ITC for that period, but the full credit requires GSTR-2B reflection.

Time Limit for Claiming ITC

ITC must be claimed by the earlier of:

• The due date of filing GSTR-3B for November (for annual filers, October) of the next financial year, OR
• The date of filing the annual return (GSTR-9) for the relevant financial year

In practical terms, for FY 2024-25, ITC must be claimed in returns for the period up to October 2025 (or the GSTR-9 filing date, whichever comes first). Missing this window means the ITC is permanently lost.

ITC on Capital Goods

For capital goods (machinery, equipment, furniture), ITC is available in full in the year of purchase, subject to the same eligibility conditions. However, if the capital goods are used for both taxable and exempt supplies, ITC must be reversed proportionately based on the ratio of exempt to total turnover.

If the capital goods are sold or disposed of within 5 years, a proportionate reversal of ITC is required.

Carry Forward of ITC

Unused ITC (where output GST in a period is less than input GST) does not lapse — it is carried forward in the credit ledger on the GST portal and can be utilised against future output GST liability. Refund of accumulated ITC is available in specific situations (e.g., zero-rated supplies, inverted duty structure) subject to conditions.