GST Calculator - Calculate GST, CGST, SGST & IGST Free GST Calculator
Use our free GST calculator to quickly compute GST amount, CGST, SGST and IGST. Supports all Indian GST slabs and both GST exclusive and GST inclusive calculations.
GST Details
GST Breakdown
GST Calculator - Guide
What is GST?
Goods and Services Tax (GST) is a comprehensive indirect tax levied on the supply of goods and services in India since July 1, 2017. It replaced multiple cascading taxes like VAT, Service Tax, Excise Duty and others, creating a unified tax system.
India follows a dual GST model where both the Centre and State simultaneously levy tax. For intra-state sales, CGST (Central) and SGST (State) are charged equally. For inter-state sales, IGST (Integrated) is charged by the Centre.
GST Rate Slabs in India
5% GST: Essential items — packaged food, footwear under ₹500, transportation services
12% GST: Standard items — processed food, mobile phones, furniture, business class air tickets
18% GST: Most goods & services — electronics, telecom services, restaurants with AC, financial services
28% GST: Luxury & demerit goods — automobiles, cement, tobacco, aerated drinks, home appliances
GST Exclusive vs GST Inclusive
- GST Exclusive: Original amount does not include GST. GST is added on top. Formula: GST = Amount × Rate / 100. Total = Amount + GST.
- GST Inclusive: The total amount already includes GST. Formula: Base Price = Total × 100 / (100 + Rate). GST = Total − Base Price.
CGST, SGST & IGST Explained
- CGST: Central GST — goes to the Central Government. Equal to half the total GST rate for intra-state supply.
- SGST: State GST — goes to the State Government. Equal to half the total GST rate for intra-state supply.
- IGST: Integrated GST — applicable for inter-state supply. Equal to the full GST rate and collected by the Central Government.