Tax
GST calculator: add or remove GST from a price
Add GST to a price or work out the GST included in a price, at the current GST rates.
How it works
Adding GST: GST = amount × rate ÷ 100. Removing GST: GST = amount × rate ÷ (100 + rate). Within a state, the GST is split equally into CGST and SGST. Between states, it is charged as IGST.
Questions people ask
What are the GST rates now?
Since the GST changes of September 22, 2025, most goods and services fall in the 5% or 18% slabs, with a 40% rate on a small list of luxury and sin goods. Gold and jewellery carry 3%, and rough diamonds 0.25%.
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Results are estimates for planning only and are not financial or tax advice.