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GST Calculator

Calculate GST online - add or remove GST with CGST, SGST, and IGST breakdown for all tax slabs.

Calculation Mode

Add GST on top of the base price

GST Rate

Supply Type

Additional Cess (%)

Applicable on luxury goods, tobacco, aerated drinks, etc.

Line Items

Description

Quantity

Unit Price (excl. GST)

₹0.00

Tax Breakdown

Taxable Amount₹0.00

CGST @ 9%₹0.00

SGST/UTGST @ 9%₹0.00

Total GST₹0.00

Grand Total₹0.00

GST Rate Quick Reference

0.25%Rough precious stones, diamonds

3%Gold, silver, platinum jewellery

5%Packed food, footwear under 500, transport

12%Processed food, mobile phones, fertilizers

18%Most goods & services, IT, electronics

28%Luxury goods, cars, tobacco, aerated drinks

About GST Calculator

Free GST calculator for India that instantly computes Goods and Services Tax for any amount across all GST slabs (0.25%, 3%, 5%, 12%, 18%, 28%). Switch between GST-exclusive (add tax on top) and GST-inclusive (extract tax from total) modes. See a detailed breakdown of CGST + SGST for intra-state supplies or IGST for inter-state supplies. Add multiple line items with quantities and unit prices to generate an invoice-style tax table. Supports additional cess for luxury and sin goods. Includes a GST rate quick reference showing which rates apply to common goods and services. All calculations happen in your browser - no data is sent anywhere. Essential for Indian businesses, freelancers, accountants, and anyone filing GST returns.

Frequently Asked Questions

What is GST and how is it calculated?▾

GST (Goods and Services Tax) is India's unified indirect tax that replaced multiple taxes like VAT, service tax, and excise duty. For GST-exclusive calculation, GST = Base Price × GST Rate. For GST-inclusive calculation, Base Price = Total Price ÷ (1 + GST Rate). For example, 18% GST on ₹1,000 = ₹180, making the total ₹1,180.

What is the difference between CGST, SGST, and IGST?▾

For intra-state transactions (within the same state), the GST rate is split equally between CGST (Central GST) and SGST (State GST). For inter-state transactions (between different states), the entire GST is charged as IGST (Integrated GST). For example, 18% GST intra-state = 9% CGST + 9% SGST, while 18% inter-state = 18% IGST.

Which GST slab applies to my product or service?▾

India has six GST rates: 0.25% (rough diamonds), 3% (gold, silver), 5% (packaged food, economy transport), 12% (processed food, mobile phones), 18% (most goods and services, IT, restaurants), and 28% (luxury goods, cars, tobacco, aerated drinks). Essential items like fresh food and healthcare are GST-exempt (0%).

What is GST Cess and when does it apply?▾

GST Cess is an additional tax over and above the standard GST rate, applied on specific luxury and demerit goods like tobacco products (up to 290% cess), aerated drinks (12% cess), luxury cars (up to 22% cess), and coal (₹400/tonne). The cess goes to a compensation fund for states.

Can I use this for GST return filing?▾

This calculator helps you verify GST amounts and generate invoice-style breakdowns with CGST/SGST/IGST splits. While it's useful for cross-checking figures before filing GSTR-1 or GSTR-3B, actual GST return filing must be done through the official GST portal (gst.gov.in).

Is this calculator free to use?▾

Yes, completely free with no signup required. All calculations happen instantly in your browser. You can add multiple line items, switch between tax modes, and see detailed breakdowns - all without any data being sent to a server.