Input Tax Credit (ITC) Under GST: Rules, Eligibility & Common Mistakes
Input Tax Credit is the heart of GST — it is what prevents tax from cascading at every stage of the supply chain. But claiming ITC correctly is also where most businesses slip up, leading to notices and reversals. This guide explains Input Tax Credit under GST — the eligibility conditions, blocked credits, the GSTR-2B match, time limits, and the common mistakes to avoid.
What Is Input Tax Credit (ITC)?
Input Tax Credit is the credit a registered business gets for the GST it pays on purchases (inputs, input services, and capital goods) used in the course of business. It is set off against the GST payable on sales, so tax is effectively paid only on the value added at each stage.
Conditions to Claim ITC
To claim ITC, all of the following must be satisfied:
- You have a valid tax invoice or debit note.
- You have received the goods or services.
- The supplier has actually paid the tax to the government and reported the invoice.
- The invoice appears in your GSTR-2B.
- You have filed your return (GSTR-3B).
- You pay the supplier within 180 days of the invoice (else the credit is reversed).
The GSTR-2B Match
ITC can be claimed only to the extent that invoices are reflected in your auto-generated GSTR-2B. If a supplier fails to upload an invoice, you cannot claim the credit until it appears. Reconciling your purchase register with GSTR-2B every month is now essential to avoid lost or wrongly claimed credit.
Blocked Credits (Section 17(5))
Certain credits are blocked even if used for business, including:
- Motor vehicles (with exceptions).
- Food and beverages, outdoor catering, club memberships.
- Personal consumption.
- Goods lost, stolen, destroyed, or given as free samples/gifts.
- Works contract and construction of immovable property (with exceptions).
Time Limit to Claim ITC
ITC for an invoice must be claimed by the earlier of the due date of the return for November following the end of the financial year, or the date of filing the annual return. Miss this and the credit lapses permanently.
Common ITC Mistakes to Avoid
- Claiming ITC without reconciling GSTR-2B.
- Claiming blocked credits under Section 17(5).
- Not reversing ITC when the supplier is unpaid beyond 180 days.
- Claiming ITC on personal or exempt-supply purchases without apportionment.
- Missing the time limit for the financial year.
These errors often surface in refund claims too — see the inverted duty refund and GST refund process.
Frequently Asked Questions
Can I claim ITC if the invoice is not in GSTR-2B?
No. ITC is restricted to invoices reflected in your GSTR-2B.
What happens if I don’t pay the supplier within 180 days?
The credit claimed must be reversed, with interest, until payment is made.
What are blocked credits?
Credits specifically disallowed under Section 17(5), such as motor vehicles and food/beverages, with exceptions.
Is there a deadline to claim ITC?
Yes — broadly by the November return after the financial year or the annual return, whichever is earlier.
Get Your ITC Right Every Month
S. Choudhary & Co. handles GST reconciliation, ITC optimisation, and return filing to keep your credit clean. Explore our GST services or call +91 90248 28295 · sushil@sushilchoudhary.com.
