The Critical Role of GSTR-2B in Claiming ITC
Under Section 16(2)(aa) of the CGST Act, a taxpayer can only claim Input Tax Credit (ITC) if the supplier has furnished invoice details in their GSTR-1 and the same is reflected in the buyer's GSTR-2B statement.
Difference Between GSTR-2A and GSTR-2B
- GSTR-2A (Dynamic): Changes continuously as suppliers file returns at any time. It does not freeze.
- GSTR-2B (Static): Generated on the 14th of every month. It provides a fixed, authoritative statement of eligible and ineligible ITC for the tax period.
Common Causes of ITC Mismatches
- Supplier filed GSTR-1 after the 11th/13th cutoff date (moves to next month's GSTR-2B).
- Supplier filed return with wrong GSTIN or marked the transaction as B2C.
- Supplier defaulted on GSTR-3B tax payment.
- Positional mismatch in Place of Supply (POS) rules.
Best Practices for Monthly Reconciliation
Perform line-by-line invoice matching between your Tally / ERP purchase register and the government GSTR-2B JSON. Send automated follow-up notices to defaulting vendors to file GSTR-1 before month-end to safeguard your working capital.