How to use this calculator
- Enter the details of the seller and buyer, the items, quantities, rates and the tax rate.
- Choose the items and the tax rates to match your situation.
- Read a printable invoice with the tax split and totals in the result.
This is a drafting aid; check the mandatory details and whether e-invoicing applies.
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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