GST Calculator India
Calculate GST at 5%, 12%, 18%, or 28% with CGST and SGST split — add or remove GST from any amount.
What Is GST?
Goods and Services Tax (GST) is an indirect tax levied on the supply of goods and services in India, implemented on July 1, 2017. It replaced multiple cascading taxes (excise duty, VAT, service tax) with a single unified tax structure. GST is destination-based — the tax is collected by the state where goods or services are consumed, not where they are produced.
GST Rates in India
India uses a four-slab GST structure: 5% for essential items (packaged food, economy hotel rooms), 12% for standard goods (processed food, business class air travel), 18% for most goods and services (restaurants, IT services, telecom), and 28% for luxury and demerit goods (cars, tobacco, aerated drinks). Some items like unprocessed food, healthcare, and education are GST-exempt at 0%.
CGST, SGST, and IGST
For transactions within the same state (intra-state), GST is split equally into CGST (Central GST) and SGST (State GST). For example, 18% GST = 9% CGST + 9% SGST. For transactions between different states (inter-state), IGST (Integrated GST) is charged at the full rate. The tax revenue is eventually shared between the Central and State governments.
How to Calculate GST
To add GST: multiply the base amount by the GST rate and add it. For 18% GST on ₹10,000: GST = ₹1,800, Total = ₹11,800. To remove GST from an inclusive amount: divide by (1 + rate). For ₹11,800 inclusive of 18%: Base = 11,800 / 1.18 = ₹10,000.