Input Tax Credit (ITC) is the foundation of the GST system — it ensures that tax is levied only on value addition at each stage of the supply chain. However, claiming ITC incorrectly can attract penalties, interest, and even criminal prosecution. This guide explains the eligibility conditions exhaustively.
Section 16 Conditions for ITC:
To claim ITC, ALL four conditions under Section 16(2) must be satisfied simultaneously:
1. You must possess a valid tax invoice or debit note issued by a registered supplier
2. You must have received the goods or services
3. The tax on such supply must have been paid by the supplier (reflected in GSTR-2B)
4. You must have filed your GST return (GSTR-3B)
The 180-Day Rule:
Section 16(2)(b) requires that payment to the supplier must be made within 180 days of the invoice date. If not paid, ITC claimed must be reversed with interest, and can be re-claimed once payment is made.
Blocked Credits under Section 17(5):
The following are "blocked" — ITC cannot be claimed regardless of other conditions:
- Motor vehicles (except for specific businesses like transport, driving schools)
- Food and beverages, outdoor catering
- Membership of clubs, health, and fitness centres
- Travel benefits to employees (LTC)
- Works contract services for construction of immovable property
- Goods/services for personal consumption
Rule 36(4) — The 2A Reconciliation Requirement:
Effective September 2020, ITC in GSTR-3B is restricted to invoices reflected in GSTR-2B. This makes monthly reconciliation mandatory. Excess ITC claimed is subject to interest at 24% per annum.
Practical Reconciliation Process:
- Step 1: Download GSTR-2B from GST Portal (auto-populated)
- Step 2: Match with your Purchase Register line-by-line
- Step 3: For mismatches, categorize: (a) Supplier not filed, (b) Invoice number mismatch, (c) Amount mismatch
- Step 4: Chase vendors for missing filings
- Step 5: Claim only 2B-reflected ITC in GSTR-3B
ITC Reversal Situations:
- Exempt supplies: Proportionate reversal required
- Credit notes from suppliers: Must reverse ITC
- Non-payment within 180 days
- Annual GSTR-9 reconciliation differences