Back to insights listing
Taxation6 Min Read

The Ultimate Guide to GSTR-2B Input Tax Credit Reconciliation

NC
CA Niraj Choudhary
•
June 25, 2026

Input Tax Credit (ITC) is one of the most critical aspects of Goods and Services Tax (GST). If claimed incorrectly, you get an ASMT-10 notice from the government; if claimed less, you lose hard-earned business cash flow. In this article, we explain the step-by-step practical guide to reconciling GSTR-2B with your purchase ledger.

What is GSTR-2B? GSTR-2B is an auto-drafted, static Input Tax Credit (ITC) statement generated for every registered taxpayer on the 14th of the succeeding month. It details whether your suppliers have filed their GSTR-1, enabling you to claim ITC.

Step-by-Step Reconciliation Steps: 1. **Download GSTR-2B Excel:** Log in to the GST Portal, navigate to Return Dashboard, and download GSTR-2B for the tax period. 2. **Export Purchase Register:** Export your Tally or SAP purchase log from the 1st to the end of the month. 3. **Use VLOOKUP / XLOOKUP:** Match GSTIN to GSTIN, invoice number to invoice number, and identify: * **Matched Invoices:** Claim 100% ITC. * **Invoices in Purchase Book but missing in GSTR-2B:** Do not claim ITC. Contact the supplier and ask them to file GSTR-1. * **Invoices in GSTR-2B but missing in Purchase Book:** Verify if it belongs to another month or is an accidental duplicate entry. ### What is Rule 36(4)? Under the CGST Rules, a taxpayer cannot claim provisional ITC. You can only claim ITC if the supplier has uploaded the invoice and it is visible in your GSTR-2B. Mastering this reconciliation is the key differentiator for top-tier accountants. In our **GST - Basic to Advanced** recorded course, we provide an Excel reconciliation template and run live portals simulation walkthroughs!

Want to master these calculations & audit standards?

We cover real-world corporate portal filings, client bookkeeping, and GST auditing computation templates in our recorded classes.