Compliance6 min read

Input Tax Credit (ITC) in GST: a simple guide

Input Tax Credit (ITC) is the mechanism that stops tax being charged on tax. It lets a business reduce the GST it owes on sales by the GST it already paid on purchases.

This guide explains how ITC works and what you need to claim it.

How ITC works — an example

Suppose you buy raw materials for ₹10,000 + ₹1,800 GST, and sell finished goods for ₹15,000 + ₹2,700 GST. You collected ₹2,700 but already paid ₹1,800, so you remit only the difference of ₹900 to the government.

That ₹1,800 you paid on purchases is your input tax credit.

Conditions to claim ITC

  • You must hold a valid tax invoice or debit note.
  • You must have actually received the goods or services.
  • The supplier must have reported the supply, so it appears in your auto-drafted credit statement (GSTR-2B).
  • You must have filed the relevant return.
  • Payment to the supplier should be made within the prescribed time, otherwise the credit may need to be reversed.

When ITC is blocked

Certain purchases are blocked from ITC even if GST was paid — for example specific motor vehicles, personal-use items, and goods or services used for exempt supplies. Composition dealers cannot claim ITC at all.

Why reconciliation matters

Because ITC depends on your supplier reporting the invoice, reconciling your purchase register with GSTR-2B each period is essential. Mismatches are the most common reason credit is delayed or denied.

Key takeaways

  • ITC lets you offset GST paid on purchases against GST collected on sales.
  • You need a valid invoice, actual receipt, supplier reporting, and a filed return.
  • Some purchases are blocked from ITC; composition dealers get none.
  • Reconcile with GSTR-2B every period to protect your credit.

This guide is general information, not tax advice. GST rules and rates can change with GST Council notifications — verify specifics on the official GST portal or with your CA.

Put this into practice with PocketGST

Create GST-compliant invoices offline, apply the right CGST/SGST or IGST split, and prepare GSTR-1/3B helper reports — no signup on the Free tier.

Download PocketGST freeGoogle Play · Works offlineSee all features

No signup on Free tier · Compare plans

Related guides

FAQ

Input Tax Credit (ITC) in GST: a simple guide — FAQs

Can a composition dealer claim ITC?+

No. Businesses under the composition scheme pay a fixed lower rate and cannot claim input tax credit.

What is GSTR-2B used for?+

GSTR-2B is an auto-drafted statement of the ITC available to you for a period, based on your suppliers' filings. It is the basis for reconciliation.

What happens if my supplier doesn't report the invoice?+

If the supply doesn't appear in your GSTR-2B, claiming that credit becomes difficult. Follow up with the supplier to file correctly.