GST Input Tax Credit: Reconciling Your Books with GSTR-2B
Input tax credit you cannot match is credit you may lose. A monthly reconciliation with GSTR-2B protects working capital and avoids notices.
CA Ammar Dawoodi 2 min read
Input tax credit (ITC) is one of the most valuable parts of GST for a business: tax paid on purchases is set off against tax payable on sales. But credit can generally only be claimed when it is reflected in your GSTR-2B, the auto-drafted statement built from your suppliers' filings. When your books and GSTR-2B disagree, credit is at risk.
Why differences happen
- The supplier filed late, or has not filed at all
- The supplier entered a wrong GSTIN, invoice number or amount
- An invoice was recorded in your books in a different month
- Credit notes and debit notes were not accounted for on both sides
- Duplicate or missed entries in your purchase register
A simple monthly routine
- Download GSTR-2B for the month once it is generated.
- Match it against your purchase register by supplier GSTIN, invoice number and tax amount.
- Classify every difference: timing, supplier error, or error in your books.
- Follow up with suppliers on missing or incorrect invoices before you file.
- Claim only eligible credit that is supported, and track the rest for later months.
Why monthly matters
Claiming credit that is not supported can lead to interest and notices, while unclaimed eligible credit is cash the business has already paid. Reconciling every month keeps both risks small and makes the annual return far easier.
If your records show persistent differences, a reconciliation review can find the cause and set up a process to prevent it.
