Quick answer: Every month, download GSTR-2B from the GST portal and match it invoice by invoice with your purchase register. Claim ITC in GSTR-3B only for invoices that appear in GSTR-2B and meet all conditions; follow up with suppliers for missing invoices; and keep a record of mismatches to avoid excess claims and notices.
Input tax credit (ITC) can be claimed only when your supplier has reported the invoice in their GSTR-1 and it reflects in your GSTR-2B, along with other conditions. Regular reconciliation protects your credit and your cash flow.
Step-by-step reconciliation
- Download GSTR-2B for the month
- Export your purchase register from your accounting software
- Match invoices on GSTIN, invoice number, date and tax amount
- Classify differences — missing in 2B, missing in books, value mismatch
- Claim eligible ITC in GSTR-3B
- Communicate with suppliers for missing or incorrect invoices
- Track pending invoices and claim when they appear, within time limits
Common reasons for mismatch
- Supplier filed GSTR-1 late or not at all
- Wrong GSTIN or invoice number reported
- Invoices booked in a different month
- Blocked credits claimed by mistake
Frequently asked questions
Can I claim ITC if the invoice is not in GSTR-2B?
Generally no. ITC should be claimed based on invoices reflected in GSTR-2B, subject to other conditions.
What if my supplier never files?
Follow up with the supplier; if they do not report the invoice, the credit may not be available and you may need to reconsider the vendor.
Can you reconcile ITC for us every month?
Yes — ITC reconciliation is part of our GST return filing service.
Related: GST return filing service · GST Calculator
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