GST · 6 min read
GSTR-2B vs GSTR-3B ITC Mismatch: How to Fix It (Without a Notice)
By the India Law Simplified editorial team · Verified against primary government sources (bare Acts & official portals) · Last updated 2026-05-29
ITC mismatches are the #1 trigger for GST notices. The rule is simple: you can broadly claim only the input tax credit that appears in your auto-drafted GSTR-2B. Here's how to stay clean.
1Why mismatches happen
- Your supplier didn't file their GSTR-1, so the invoice isn't in your 2B.
- Supplier filed late — the credit moves to a later month's 2B.
- Wrong GSTIN or invoice value entered by the supplier.
- You claimed provisional ITC that 2B doesn't support.
2How to reconcile (monthly habit)
- Download GSTR-2B for the period from the GST portal.
- Match it against your purchase register invoice-by-invoice.
- Claim in GSTR-3B only what appears in 2B (per Rule 36(4)).
- List missing invoices and follow up with those suppliers to file.
- Carry forward unmatched credit to the month it actually appears in 2B.
3If you've already over-claimed
Reverse the excess ITC with interest under Section 50 (18% p.a.) via your next GSTR-3B, rather than waiting for a notice. Voluntary correction almost always costs less than a Section 73/74 demand. Keep your reconciliation working papers as evidence.
Frequently asked questions
Can I claim ITC not showing in GSTR-2B?
Generally no. Rule 36(4) restricts ITC to what's reflected in your GSTR-2B. Claiming more invites a demand and interest.
What if my supplier never files their return?
You typically cannot claim that credit until it appears in your 2B. Follow up with the supplier; persistent non-filing may require holding payment or changing vendors.
Is interest payable on wrongly claimed ITC?
Yes, interest under Section 50 at 18% per annum applies on wrongly availed and utilised ITC.
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GST tools & estimator · GSTR-1 / GSTR-3B builder
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