Add GST to a price, or find the GST inside an amount that already includes it. The result splits the tax into CGST and SGST for supplies within Gujarat, or IGST for other states.
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How it is worked out
- Adding GST: GST = amount × rate ÷ 100.
- Removing GST: taxable value = amount × 100 ÷ (100 + rate). The GST is the difference.
- Within a state, GST is split equally between CGST and SGST. Between states, it is charged as IGST.
- Main rates since 22 September 2025 are 5%, 18% and 40%, with 3% and 0.25% for some precious metals and stones.
Questions people ask
Which GST rate applies to my product or service?
It depends on its HSN or SAC code. If you are unsure, send us a description and we will confirm the rate.
Do I charge CGST and SGST, or IGST?
CGST and SGST when the place of supply is in Gujarat, and IGST when it is in another state.
Do I need GST registration?
In Gujarat, once turnover crosses ₹40 lakh for goods or ₹20 lakh for services. Some businesses, such as most online sellers, need it whatever their turnover.
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Want us to work it out for you?
Share your documents and we will check the figures before anything is filed. We call back during office hours.