Tax Consultant
681 Points
Posted on 19 May 2026
Reconciling GSTR-2B against your books every month matters a lot more now that the portal hard-locks ITC from April 2026. For the VBA approach, most CAs build a lookup that matches invoice-by-invoice on supplier GSTIN, invoice number, and tax amount, then flags mismatches and groups them by supplier for bulk follow-up. If a mismatch persists after the supplier corrects their GSTR-1, you claim only the matched amount in GSTR-3B to avoid blocking.
Our [GST compliance checklist for FY 2026-27](https://taxgarden.in/resources/gst-compliance-checklist-india-2026-27) has the reconciliation steps with monthly timelines if useful.