How to Do GST Reconciliation: A Step-by-Step GSTR-2B Guide
GST reconciliation is the process of matching your purchase ledger with the government's GSTR-2B statement. Done correctly, it protects your Input Tax Credit (ITC) and keeps you compliant.
What is GST reconciliation?
Every business registered under GST buys goods and services from other GST-registered vendors. These vendors report their sales (and your purchases) in their GSTR-1 returns. The government consolidates this data into your GSTR-2B, which shows the ITC available to you.
Reconciliation means comparing the invoices and tax amounts recorded in your internal books against the invoices and tax amounts shown in GSTR-2B. The goal is simple: make sure both records match before you claim ITC in your GSTR-3B return.
The 6-step GSTR-2B reconciliation process
Export your purchase ledger
Download your purchase register from your accounting software (Tally, Zoho Books, Vyapar, or Excel). Make sure it includes GSTIN of the supplier, invoice number, invoice date, and the tax amount (CGST + SGST or IGST).
Download GSTR-2B from the GST portal
Log in to the GST common portal (gst.gov.in) and navigate to Returns → GSTR-2B. Select the relevant tax period and download the JSON or Excel file. This is the government's view of all invoices uploaded by your suppliers.
Match invoice-by-invoice
For every invoice in your purchase ledger, look for the same supplier GSTIN and invoice number in the GSTR-2B file. Compare the tax amount shown in your books against the tax amount reported by the supplier on the portal.
Flag mismatches and missing invoices
If the tax values do not match, mark it as a tax mismatch. If an invoice exists in your ledger but is absent in GSTR-2B, it is a missing invoice. Both can block your Input Tax Credit claim.
Follow up with suppliers
For missing or mismatched invoices, contact the supplier immediately. Ask them to upload the missing invoice or amend their GSTR-1 return so the correct details appear in your next GSTR-2B.
File your return with confidence
Once the reconciliation is complete, use the reconciled figures to fill GSTR-3B. Claim only the eligible ITC that matches your books and the portal, reducing the risk of department notices.
Common reconciliation mistakes to avoid
- Waiting until the last day of filing — give suppliers time to amend GSTR-1.
- Ignoring small tax value differences — they add up and can trigger scrutiny.
- Claiming ITC on invoices that never appear in GSTR-2B.
- Using the wrong invoice number format (e.g., with vs. without leading zeros).
- Not reconciling IGST separately when you operate across states.
Reconcile GST in seconds, not hours
Upload your Purchase Register and GSTR-2B files and let GSTHandled automatically find mismatches, missing invoices, and perfect matches. No manual spreadsheet formulas needed.
Try the Free GST ITC MatcherFrequently asked questions
How often should I reconcile GST?
Ideally, reconcile monthly after GSTR-2B is generated. Many businesses also do a quarterly review before filing GSTR-3B.
Can I claim ITC on a missing invoice?
No. You should claim ITC only on invoices that appear in your GSTR-2B. Ask the supplier to upload the missing invoice first.
What if the supplier's tax value is higher than mine?
You can claim only the tax you actually paid. If the supplier has reported more, ask them to correct their return to avoid mismatches.