- What is Input Tax Credit (ITC)?
- How ITC Works - Simple Explanation
- Eligibility for Claiming ITC
- Conditions for Claiming ITC (Section 16)
- Documents Required for ITC
- Blocked Credits - Ineligible ITC (Section 17)
- ITC Reversal - When and Why
- How to Calculate ITC
- Common Mistakes to Avoid
- Frequently Asked Questions
What is Input Tax Credit (ITC)?
Input Tax Credit (ITC) means claiming credit for the GST paid on purchases (inputs) against the GST liability on sales (outputs). This is the core feature of GST that prevents the cascading effect of taxes (tax on tax).
You buy raw materials for ₹10,000 + 18% GST (₹1,800). You pay ₹1,800 GST to supplier.
You sell finished goods for ₹15,000 + 18% GST (₹2,700). You collect ₹2,700 GST from customer.
ITC Benefit: You can claim credit of ₹1,800 paid on inputs. Net GST payable = ₹2,700 - ₹1,800 = ₹900.
Result: You only pay tax on the value added (₹5,000 × 18% = ₹900).
How ITC Works - Flow Diagram
- Supplier: Issues tax invoice, collects GST, files GSTR-1 and GSTR-3B
- Buyer: Receives goods, gets invoice, ITC appears in GSTR-2B
- Buyer: Claims ITC in GSTR-3B while filing monthly return
- Government: Verifies supplier has paid tax, allows ITC
- Buyer: Uses ITC to pay output tax liability
Eligibility for Claiming ITC
Registered Taxpayer
Must be registered under GST (regular taxpayer, casual taxable person, etc.)
For Business Use
Goods/services must be used for business purposes (not personal)
Valid Tax Invoice
Must possess a valid tax invoice or debit note from supplier
Time Limit
ITC must be claimed within the prescribed time limit (earlier of filing of September return or annual return)
Conditions for Claiming ITC (Section 16 of CGST Act)
| Condition | Requirement | Consequence if not met |
|---|---|---|
| Possession of invoice | Must have valid tax invoice/debit note | ITC not available |
| Receipt of goods/services | Must have physically received the goods | ITC not available |
| Tax paid to government | Supplier must have deposited tax | ITC reversal required |
| Return filed | GSTR-3B must be filed | ITC cannot be claimed |
| Supplier compliance | Supplier must have filed GSTR-1 | ITC not reflected in GSTR-2B |
Documents Required for ITC
Valid Documents
- Tax Invoice
- Bill of Supply (for composition dealers)
- Debit Note
- Credit Note
Transport Documents
- Bill of Lading (imports)
- E-Way Bill
- Goods Receipt Note
Other Documents
- Bill of Entry (imports)
- Payment proof
- Delivery challan
Blocked Credits - Ineligible ITC (Section 17)
Motor Vehicles
Exception: ITC available for vehicles used for transportation of goods, passenger transport, or driving training.
Food & Beverages
Hotel stays, restaurant services, catering (exceptions for events/contractual basis)
Health Services
Life/health insurance, medical insurance, health checkups
Works Contract
For construction of immovable property (except plant & machinery)
Free Samples/Gifts
Goods/services given away free of charge
Lost/Stolen/Written Off
If goods are lost, stolen, destroyed, or written off
ITC Reversal - When and Why
| Situation | ITC Reversal Requirement |
|---|---|
| Supplier fails to pay tax | ITC must be reversed along with 18% interest |
| Goods not received within 180 days | ITC claimed to be reversed |
| Inputs used for exempt supplies | Proportionate ITC reversal required |
| Goods destroyed/written off | ITC to be reversed |
| Capital goods sold after use | ITC reversed based on remaining useful life |
ITC Reversal = (Exempt Turnover / Total Turnover) × Total ITC
Example: If 20% of your supplies are exempt, you must reverse 20% of your total ITC.
How to Calculate ITC
Eligible ITC Formula
Eligible ITC = Total ITC - ITC on exempt supplies - ITC on personal use - Blocked credits
Proportionate ITC (Rule 42 & 43)
For mixed supplies (taxable + exempt), ITC must be apportioned using prescribed formulas.
- Total ITC available: ₹10,000
- ITC on exempt supplies: ₹2,000
- ITC on personal use: ₹500
- Blocked credits: ₹1,000
- Eligible ITC = ₹10,000 - ₹2,000 - ₹500 - ₹1,000 = ₹6,500
Common Mistakes to Avoid
Invalid Invoice Details
Ensure GSTIN of supplier and buyer are correct. Wrong GSTIN leads to ITC denial.
Late ITC Claim
ITC must be claimed by September of next FY or annual return filing, whichever is earlier.
Mismatch with GSTR-2B
Claim only ITC reflected in GSTR-2B. Unmatched ITC may be disallowed.
Exempt Supplies ITC
Remember to reverse ITC for exempt supplies using Rule 42/43 calculation.
Frequently Asked Questions about ITC
ITC allows you to reduce the GST you paid on purchases from the GST you collect on sales. You only pay tax on the value you added.
No, a valid tax invoice is mandatory for claiming ITC. Without invoice, ITC cannot be claimed.
You may need to reverse the ITC claimed along with 18% interest. Always verify supplier compliance.
Motor vehicles (except specific cases), food & beverages, health insurance, works contract for immovable property, and personal use items.
ITC reversal means paying back the credit claimed earlier if conditions are not met or inputs used for exempt supplies.
Yes, ITC on capital goods can be claimed in the year of purchase. However, if sold after use, proportionate reversal applies.