GST Calculator
Use this GST calculator to quickly add GST to a base price or reverse-calculate the pre-GST amount from an inclusive total. Supports all standard GST slabs: 5%, 12%, 18%, and 28%.
Frequently Asked Questions
What are the GST slabs in India?+
India has four main GST slabs: 5% (essential goods, basic food items), 12% (processed food, computers), 18% (most services, electronics, restaurant food), and 28% (luxury items, automobiles, tobacco). A 0% slab also exists for basic necessities like fresh produce.
What is the difference between GST inclusive and GST exclusive?+
GST exclusive means the price shown does not include GST — you add GST on top to get the final price. GST inclusive means the price already includes GST — you reverse-calculate to find the base amount. This calculator handles both scenarios.
What is CGST and SGST?+
For intra-state (within the same state) transactions, GST is split equally into CGST (Central GST) and SGST (State GST). For inter-state transactions, IGST (Integrated GST) applies. For example, 18% GST on an intra-state sale is 9% CGST + 9% SGST.
Who needs to register for GST?+
Businesses with annual turnover exceeding ₹40 lakh (₹20 lakh for service providers, ₹10 lakh in special category states) must register for GST. Certain businesses like e-commerce sellers must register regardless of turnover.