Calculate GST for India instantly. Add or remove GST (5%, 12%, 18%, 28%) from any amount. Find base price, GST amount, and total. 100% free, no signup, works entirely in your browser.
Goods and Services Tax (GST) is India's unified indirect tax that replaced a patchwork of state VAT, service tax, excise duty, and other levies. It applies at every stage of the supply chain — from manufacturer to wholesaler to retailer — with input tax credit available to businesses, meaning tax is only paid on the value added at each step, not on the full price.
How to Use This GST Calculator
Enter an amount, select the GST rate, and choose whether the amount is exclusive of GST (the base price before tax) or inclusive of GST (the total price after tax). Click Calculate and the tool instantly shows the base amount, GST amount, and total — all in Indian rupee format.
GST Exclusive vs GST Inclusive
GST Exclusive — The amount you enter is the base price. GST is added on top. Formula: GST = Base × Rate ÷ 100, Total = Base + GST.
GST Inclusive — The amount you enter already includes GST. The calculator extracts the base price. Formula: Base = Total ÷ (1 + Rate ÷ 100), GST = Total - Base.
GST for Small Business Owners
If you supply goods or services in India and your annual turnover exceeds ₹40 lakh (₹20 lakh for special category states), you generally need to register for GST, charge GST on your invoices, and file returns — typically monthly or quarterly. This calculator helps you quickly work out the correct amounts for your invoices, but for actual filing, use GST-compliant accounting software or consult a tax professional.
Frequently Asked Questions
What is the difference between GST exclusive and GST inclusive?
GST exclusive means the amount entered does not include GST — the calculator adds GST on top to show the total. GST inclusive means the total already includes GST — the calculator extracts the base price and the GST portion from the total.
What are the GST rates in India?
India has four main GST slab rates: 5% for essentials, 12% for standard goods, 18% for most goods and services (the default rate), and 28% for luxury and sin goods. Some items like basic food and healthcare are exempt (0%).
Do I need to pay GST as an individual?
GST is charged by businesses and passed on to consumers as part of the price. Individuals don't need to file GST returns unless they themselves run a GST-registered business with turnover above the threshold.
How is GST calculated?
To add GST: GST = Base × Rate ÷ 100. To remove GST from an inclusive total: Base = Total ÷ (1 + Rate ÷ 100), and GST = Total - Base. This tool handles both calculations instantly.
Is this GST calculator accurate for invoicing?
This tool gives accurate net and gross amounts for standard GST calculations. For actual invoicing and GST return filing, use an accounting software or consult a tax professional to ensure full compliance.