How to use this calculator
- Enter the profit, the deductions and exemptions otherwise claimed and the brought forward losses.
- Choose the regime and the type of business to match your situation.
- Read the tax under each regime and the difference between them in the result.
The choice is binding once made; check the conditions for the concessional regimes before deciding.
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 Income tax return (ITR) filing.
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