How to use this calculator
- Enter the rows from AIS or 26AS and the amounts in your own records.
- Choose the source and the matching basis to match your situation.
- Read the matched rows, the mismatches and the difference for each in the result.
Only the rows you paste are compared; confirm each difference against your documents before filing.
The result is an estimate for the figures you enter. It is not a filed return, a certificate or professional advice. Rates, thresholds and section numbers change with each Finance Act, and the Income-tax Act, 2025 applies from 1 April 2026 with new section and form numbers.
For the related work, see Tax audit.
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