Input tax credit (ITC) in GST is the GST a registered business pays on purchases that it deducts from the GST it owes on its sales, paying only the difference. Section 16 of the CGST Act, 2017 allows it only when every condition is met. Miss one and paid tax becomes a cost, often found only when a notice arrives.
In OneFinOps, the Tax Agent reconciles every purchase invoice to GSTR-2B and flags credit at risk while the vendor can still fix it.
Key takeaways
- Claim ITC only on invoices that appear in your GSTR-2B (rule 36(4)).
- Section 17(5) blocks credit on motor cars, staff food and club memberships.
- Claim FY 2025-26 credit by 30 November 2026, or before filing GSTR-9.
What is input tax credit in GST with example?
Shree Interiors Pvt Ltd, a Pune chair maker, sells chairs worth ₹25,00,000 in August 2026 with GST of ₹4,50,000 (18%, within Maharashtra).
- Eligible ITC: steel and fabric ₹2,16,000 plus CA fees ₹10,800 = ₹2,26,800, if the invoices are in GSTR-2B.
- Staff lunch GST of ₹2,000 is blocked under section 17(5)(b)(i) unless the company is legally obliged to provide it.
- Net GST payable is ₹4,50,000 minus ₹2,26,800 = ₹2,23,200, paid as ₹1,11,600 CGST and ₹1,11,600 SGST.
Conditions for claiming input tax credit under section 16
All conditions must be met for each invoice.
| Condition | Legal reference | What to check |
|---|---|---|
| You hold a tax invoice or debit note | Section 16(2)(a), rule 36(1) | GSTINs, HSN or SAC, value, tax and place of supply |
| The invoice is in your GSTR-2B | Section 16(2)(aa), rule 36(4) | Supplier reported it in GSTR-1, GSTR-1A or IFF |
| You received the goods or services | Section 16(2)(b) | Goods receipt note or service confirmation |
| ITC is not restricted in GSTR-2B | Section 16(2)(ba) | Not shown as ineligible |
| The supplier paid the tax | Section 16(2)(c) | Supplier has filed GSTR-3B |
| You filed your own return | Section 16(2)(d) | Your GSTR-3B for the period is filed |
If you do not pay the supplier within 180 days of the invoice date, you reverse the ITC with interest and re-claim it on payment. Section 17(5) overrides all of this: even with every condition met, there is no ITC on blocked items such as motor vehicles for transporting persons with seating up to 13, club memberships, or goods given as free samples or gifts. Blocked credit that comes through GSTR-2B is reversed in Table 4B(1) of GSTR-3B. More on the monthly match in GSTR-2B vs GSTR-3B reconciliation.
What is the time limit for claiming input tax credit?
Under section 16(4), you cannot take ITC after 30 November following the end of the financial year, or after filing the annual return for that year, whichever is earlier. For FY 2025-26 that is 30 November 2026; for FY 2026-27, 30 November 2027. If you plan to file GSTR-9 early, sweep every open invoice into a GSTR-3B first.
How OneFinOps handles input tax credit
The Tax Agent reconciles the purchase register to GSTR-2B line by line, keeping not reported, amount differs and matched as separate outcomes. Credit at risk is valued, aged and attributed to the vendor who has to fix it.
That exposure goes to the payables controller while payment is still leverage, and the tax manager reviews and signs the return before it is filed. Most setups record the purchase in one tool and check GSTR-2B in another, so the vendor is found a year late. Here the bill, the receipt, the payment and the credit sit in one record.
See how GST filing works in OneFinOps
