[003] GLOSSARY

ITC mismatch

A difference between the input tax credit expected in books and the data visible in GSTR-2B.

29 May 2026

Definition

An ITC mismatch is a difference between the credit that should be claimable in books and the data visible in GSTR-2B.

Why it matters

It is the core issue the reconciliation workflow is trying to isolate, prioritize, and resolve before filing.

Example

A books entry exists, but the invoice is absent from GSTR-2B because the vendor filed it late.

Common mistake

Teams often group every mismatch together instead of separating missing invoices, tax deltas, and duplicate claims.

Books-only
Portal-only
Missing invoice
Vendor follow-up

Frequently asked questions

Does every mismatch mean lost credit?: No. Some mismatches are timing issues, formatting issues, or pending vendor filings that can be resolved before filing.
What should a team do first?: Classify the mismatch by type so the right action can be applied quickly.