Input tax credit under GST: conditions, blocked credits and time limits
Input tax credit (ITC) lets a GST-registered business reduce the tax it pays on sales by the tax it paid on purchases used for business. It is the core of GST, and the most audited part of it.
Conditions to claim ITC
Under Section 16 of the CGST Act, you can claim ITC only if:
- 1.You hold a valid tax invoice or debit note.
- 2.The invoice appears in your GSTR-2B (the supplier has reported it in GSTR-1).
- 3.You have received the goods or services.
- 4.The supplier has actually paid the tax to the government.
- 5.You have filed your GSTR-3B.
- 6.You pay the supplier within 180 days of the invoice date; otherwise the credit is reversed until payment.
Blocked credits
Section 17(5) blocks ITC on certain items even if used for business, including:
- Motor vehicles for passenger transport (with exceptions)
- Food, beverages, outdoor catering, beauty treatment and health services (with exceptions)
- Club memberships and health and fitness centres
- Works contract and construction of immovable property (other than plant and machinery)
- Goods lost, stolen, destroyed or given as free samples or gifts
- Goods or services for personal consumption
Time limit
ITC for a financial year must be claimed by 30 November of the following year, or the date of filing the annual return, whichever is earlier.
Frequently asked questions
This guide is general information, not legal advice. Government fees and procedures change; confirm current figures before you file.
- GSTR-1 vs GSTR-3B: the difference and due dates
What GSTR-1 and GSTR-3B report, how they connect through GSTR-2B, monthly and quarterly due dates, and common mismatches.
- Reverse charge mechanism (RCM) under GST explained
When the buyer pays GST instead of the supplier: common RCM services for companies, Section 9(3) and 9(4), and how to report it.
- GST invoice format: mandatory fields and rules
What a GST tax invoice must contain under Rule 46, HSN/SAC code rules, invoice numbering, and when to issue a bill of supply.