What is Input Tax Credit (ITC)?

Input Tax Credit is the GST you pay on your purchases, which you can set off against the GST you collect on your sales. You only pay the government the difference, so the same value isn't taxed twice.

What are the conditions to claim ITC?

You need a valid tax invoice, you must have received the goods or services, the supplier must have paid the tax and filed their return (so it shows in your GSTR-2B), and you must have filed your own GST return.

On what purchases can I not claim ITC?

ITC is blocked on things like personal-use purchases, most motor vehicles, food and beverages, club memberships, and goods given as free samples or gifts — among others listed in the GST law.

Is there a time limit to claim ITC?

Yes. ITC for an invoice can generally be claimed up to 30 November following the end of that financial year, or the filing of the annual return, whichever is earlier.

Why is ITC important for small businesses?

ITC lowers how much GST you actually pay out of pocket, which reduces your tax cost and frees up working capital.

Input Tax Credit (ITC) Explained — With a Simple Example

Input Tax Credit (ITC) is one of the most valuable features of GST — and one of the most misunderstood. In simple terms, it means the GST you pay on your purchases can be claimed back against the GST you collect on your sales. This guide explains ITC in plain language, with a worked example.

What is Input Tax Credit?

Under GST, tax is charged at every stage of the supply chain. Without a credit mechanism, the same value would be taxed again and again. ITC fixes that.

The GST you pay on purchases is your input tax.
The GST you collect on sales is your output tax.
You pay the government only the difference.

The core formula: GST payable = Output GST (on sales) − Input GST (on purchases)

A simple example (with numbers)

Say you’re a trader:

Step	Amount	GST (18%)
You buy stock	₹1,00,000	₹18,000 (input tax)
You sell it	₹1,50,000	₹27,000 (output tax)

Now apply ITC:

	Amount
Output GST (collected on sale)	₹27,000
Less: Input GST (paid on purchase)	− ₹18,000
GST you actually pay the government	₹9,000

Without ITC you’d hand over ₹27,000. With ITC, you pay only ₹9,000 — because you already paid ₹18,000 earlier. That’s the whole point of Input Tax Credit.

Conditions to claim ITC

You can’t claim ITC automatically — these conditions must be met:

Condition	What it means
Valid tax invoice	You hold a proper tax invoice or debit note
Goods/services received	You’ve actually received what you bought
Supplier paid the tax	Your supplier deposited the GST with the government
Reflected in GSTR-2B	The invoice appears in your auto-drafted GSTR-2B statement
You filed your return	You’ve filed your own GST return (GSTR-3B)

When you cannot claim ITC (blocked credits)

Some purchases are specifically blocked from ITC, even if you have a valid invoice:

Blocked category	Examples
Personal use	Anything bought for personal, not business, use
Motor vehicles	Most cars (with limited business exceptions)
Food & beverages	Meals, outdoor catering (with limited exceptions)
Memberships	Club, fitness centre and similar memberships
Free samples & gifts	Goods given away free or lost/destroyed
Composition scheme	Dealers under the composition scheme can’t claim ITC

Always check the current rules, as the exact list and exceptions are defined in the GST law.

The time limit to claim ITC

Don’t sit on your credits. ITC for an invoice can generally be claimed up to 30 November following the end of the financial year to which the invoice belongs, or the date of filing the annual return — whichever is earlier. Miss it, and the credit is lost.

Why ITC matters for small businesses

Lower tax outflow — you pay only the tax on your value addition, not the full amount.
Better cash flow — less money locked up in tax.
Accurate pricing — knowing your net GST helps you price correctly.

The catch is that ITC depends on your suppliers filing correctly (so it shows in your GSTR-2B). Buying from GST-compliant suppliers protects your credit.

Keep your ITC on track

Claiming ITC correctly means keeping clean records of every purchase and the GST paid on it. In KhataBuddy, you record purchases and the input GST alongside your sales, so your GST position is always clear at a glance. Try KhataBuddy free and stay on top of both output and input tax.