What GSTR-2B reconciliation does, what you need before you start, and the shape of the whole flow.
Under GST, the Input Tax Credit you can claim is tied to what your suppliers have actually filed and what appears in your GSTR-2B. Reconciliation is how you confirm your books and the portal agree before you file.AI Accountant matches your purchase register against GSTR-2B, shows you where they disagree, lets you classify each credit, and exports a workbook that includes Table 4 of GSTR-3B.