GST Calculator

GST (Goods and Services Tax) is an indirect tax in India that has replaced many previous indirect taxes. To calculate GST: GST Amount = (Base Price × GST Rate) / 100. For example, if the base price is ₹1000 and GST rate is 18%, then GST amount = (1000 × 18) / 100 = ₹180. This calculator does all calculations automatically for you.

CGST (Central GST): Levied by the central government on intra-state transactions. SGST (State GST): Levied by the state government on intra-state transactions. For intra-state sales, both CGST and SGST apply (combined = total GST rate). IGST (Integrated GST): Levied on inter-state and international transactions by the central government. IGST replaces both CGST and SGST.

India has four main GST slabs: 0% (Exempted) - Essential items like basic food grains, milk, eggs. 5% - Items like edible oil, sugar, spices. 12% - Items like processed food, computer hardware. 18% (Standard rate) - Most goods and services. 28% - Luxury and sin goods like vehicles, cigarettes. Use our Rate Finder tool to check specific products.

Use the "Remove GST" option in the Simple Calculator. Enter the GST-inclusive (total) price, select the applicable GST rate, and click Calculate. The calculator will automatically determine the base price and the GST amount. The formula used is: Base Price = Total Price / (1 + GST Rate/100).

Yes! Switch to Batch Mode to add multiple items with different GST rates. Enter each item's price and select its GST rate, then click "Calculate Total". The calculator will show the total base price, total GST, and grand total for all items combined. You can add, remove, and edit items before calculating.

Yes, this calculator uses the standard GST calculation formulas. However, we recommend consulting with a tax professional for complex business scenarios, special cases, or to ensure compliance with current GST regulations. This tool is provided for general reference and educational purposes.

GST registration is mandatory for businesses with an annual turnover exceeding ₹40 lakhs (₹20 lakhs for special category states like Arunachal Pradesh, Assam, etc.) in a financial year. Professionals with income exceeding ₹50 lakhs must also register for GST. Certain entities like government agencies must register regardless of turnover. Check the GST portal for specific eligibility criteria.