How to use this calculator
- Enter the aggregate turnover and the current filing frequency.
- Select the quarter from the options that apply to your case.
- Read whether you can opt in and the schedule of filing and payment in the result.
A taxpayer must opt in; confirm the conditions and the dates for the quarter.
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 GST return filing.
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