GST update — CBIC circulars of 26 October 2026: Circular No. 262/08/2026-GST clarifies that input tax credit on demonstration vehicles of authorised dealers is not blocked; Circular No. 260/2026 explains ITC distribution through Input Service Distributors; and from 1 November 2026 post-sale discounts no longer need a prior agreement linked to specific invoices (Notification No. 03/2026-Central Tax).
Quick answer: Input Tax Credit lets you reduce your GST liability by the tax already paid on business purchases. But ITC comes with conditions: your supplier must actually file their return, the credit must be claimed within the deadline, and certain expenses are blocked outright. Miss any of these and the credit gets reversed, often with interest.
The Credit That Got Reversed Six Months Later
A trader claimed ITC on a batch of invoices worth ₹4 lakh, filed his returns on time, and moved on. Eight months later, a GST notice arrived. His supplier had never filed GSTR-1 for that period. The credit was reversed, with 18% interest backdated to the date of claim.
The trader had done nothing wrong on his end. But ITC in India isn’t just about what you paid. It depends on what your supplier reports too.
How ITC Actually Works
You pay GST on purchases (inputs). You collect GST on sales (output). ITC lets you subtract the input tax from the output tax, so you only pay the government the difference.
To claim it, four conditions must all be met:
- You have a valid tax invoice or debit note
- You’ve received the goods or services
- The supplier has actually paid the tax to the government and filed their return
- You’ve filed your own GST return
Miss any one, and the credit doesn’t hold up.
Where ITC Claims Go Wrong
| Common Error | Why It Happens | What It Costs You |
|---|---|---|
| Claiming ITC before supplier files GSTR-1 | Buyer assumes payment = credit | Credit reversed + interest |
| Claiming ITC on blocked credits | Not checking Section 17(5) exclusions | Full reversal + penalty |
| Missing the claim deadline | Not tracking the cutoff (30th Nov of next FY or annual return, whichever earlier) | Credit lost permanently |
| Claiming ITC on personal expenses | Mixing business and personal purchases | Reversal on audit |
| Ignoring GSTR-2B mismatches | Not reconciling before filing | Notices, blocked credit |
What’s Blocked Under Section 17(5)
Not everything you pay GST on qualifies for credit. Common blocked categories:
- Motor vehicles for personal use (with exceptions for transport businesses)
- Food, beverages, and outdoor catering, unless it’s a mandatory input for your output supply
- Club memberships, health and life insurance, unless required by law for employees
- Works contract services for immovable property, with some exceptions
- Goods lost, stolen, destroyed, or given as free samples
If your accountant claims ITC on any of these without checking the exclusion list, it’s a reversal waiting to happen.
The Reconciliation Step Most Businesses Skip
Your ITC claim should match GSTR-2B, the auto-generated statement showing what your suppliers have actually reported. If your books show ITC that GSTR-2B doesn’t reflect, that gap is exactly what draws a notice.
Reconcile every month, not just before filing annual returns. Catching a mismatch early means you can chase the supplier for correction. Catching it a year later means you’re the one paying the interest.
A Buyer’s Checklist
- Match every ITC claim against GSTR-2B before filing
- Confirm supplier GSTR-1 filing status, don’t assume payment means compliance
- Check Section 17(5) before claiming credit on any borderline expense
- Track the claim deadline for each invoice, don’t let credits expire unclaimed
- Keep invoices and proof of receipt on file, audits ask for both
Why This Matters
ITC is one of the most common sources of GST notices in India, not because businesses are trying to cheat the system, but because the compliance burden sits partly on their supplier’s behavior, which they can’t control. The only defense is reconciliation, done monthly, not once a year.
Related: see our full guide on GST services.