GSTR-1 vs GSTR-2B: The Complete Reconciliation Guide

What are GSTR-1 and GSTR-2B?

GSTR-1 is the return where you report all your outward supplies (sales) for a tax period. GSTR-2B, on the other hand, is an auto-drafted, static statement of your inward supplies (purchases) generated from the GSTR-1s filed by your suppliers.

In short: GSTR-1 is what you tell the government you sold; GSTR-2B is what your suppliers told the government they sold to you. The second one decides how much input tax credit (ITC) you can claim.

Why GSTR-2B reconciliation matters

Your ITC — the GST you already paid on purchases — can only be claimed if it appears in your GSTR-2B. If a supplier forgets to file, files late, or enters a wrong GSTIN, that credit silently disappears and you end up paying more tax than you should.

Reconciliation is the process of matching your purchase register against GSTR-2B to catch these mismatches before you file GSTR-3B.

Common mismatches to watch for

• Invoices in your books but missing from GSTR-2B (supplier didn't file)
• Wrong GSTIN or invoice number entered by the supplier
• Differences in taxable value or tax amount
• Invoices recorded in the wrong tax period

How to reconcile without spreadsheets

Manual reconciliation in Excel is slow and error-prone, especially past a few dozen invoices a month. Accounting software like Betterwork Books pulls your GSTR-2B, matches it against your purchase entries automatically, and flags every mismatch so you can follow up with suppliers — protecting your ITC and your cash flow.

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