How to use this calculator
- Enter the stage of the trust: new, existing or renewal.
- Choose the stage of registration to match your situation.
- Read the form to use, the validity period and the next date for action in the result.
Registration is granted by the Commissioner; check the current forms and due dates on the portal.
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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