GST Calculator
Calculate GST (Goods and Services Tax) online for exclusive and inclusive amounts, with CGST, SGST, and IGST breakdowns.
How to use the GST Calculator
- 1Select whether your amount is GST Exclusive (add tax) or GST Inclusive (remove tax).
- 2Enter the base or total amount in rupees.
- 3Choose an applicable GST tax rate (0%, 5%, 12%, 18%, 28%) or enter a custom rate.
- 4Optionally enable CGST/SGST (intra-state) or IGST (inter-state) tax breakdowns.
- 5Click Calculate GST to generate detailed results instantly.
- 6Review the Net Amount, Total GST, CGST/SGST split, and step-by-step formula breakdown.
What is GST (Goods and Services Tax)?
Goods and Services Tax (GST) is a comprehensive, multi-stage, destination-based indirect tax levied on the supply of goods and services. GST replaced multiple cascading indirect taxes (such as VAT, service tax, and excise duty) with a unified tax structure to simplify taxation and create a single national market.
How to Calculate GST (GST Exclusive Formula)
For GST-exclusive pricing, tax is added on top of the net base amount. The formulas used are: • GST Amount = (Base Amount × GST Rate) ÷ 100 • Total Amount = Base Amount + GST Amount. For example, calculating 18% GST on a ₹1,000 base amount yields ₹180 in GST and a total payable price of ₹1,180.
GST Inclusive Calculation (Extracting Base Amount)
When prices already include GST, businesses and consumers need to reverse-calculate the pre-tax base amount and the embedded tax component. The formulas used are: • Base Amount = Total Amount ÷ (1 + (GST Rate ÷ 100)) • GST Amount = Total Amount − Base Amount. For example, an inclusive price of ₹1,180 with 18% GST contains ₹1,000 base value and ₹180 GST.
Understanding CGST, SGST, and IGST
GST is categorized based on supply jurisdiction: • CGST (Central Goods and Services Tax): Collected by the Central Government on intra-state supplies (50% of total GST). • SGST (State Goods and Services Tax): Collected by the State Government on intra-state supplies (50% of total GST). • IGST (Integrated Goods and Services Tax): Collected by the Central Government on inter-state supplies and imports (100% of total GST).
Real-World GST Calculation Examples
Consider an intra-state transaction of ₹10,000 under the standard 18% GST slab: • Base Value: ₹10,000 • CGST (9%): ₹900 • SGST (9%): ₹900 • Total GST: ₹1,800 • Final Invoice Total: ₹11,800. For an inter-state sale, the entire ₹1,800 is designated as IGST.
Frequently Asked Questions
Common questions about using the GST Calculator.
What is GST?
GST (Goods and Services Tax) is a single, unified destination-based indirect tax levied on the manufacturing, sale, and consumption of goods and services.
How do I calculate GST?
To calculate GST on a base price, multiply the net base amount by the GST rate percentage and divide by 100. Formula: GST Amount = (Base Amount × GST Rate) / 100.
How do I calculate GST inclusive price?
GST inclusive price equals the base amount plus the calculated GST amount. Formula: Total Amount = Base Amount + ((Base Amount × GST Rate) / 100).
How do I remove GST from an inclusive price?
To extract the base price from an inclusive total, divide the total price by (1 + GST Rate / 100). The GST amount is the inclusive total minus this base price.
What is the difference between CGST, SGST and IGST?
CGST (Central GST) and SGST (State GST) are levied equally on intra-state (within state) supplies. IGST (Integrated GST) is levied on inter-state (between states) supplies and imports.
Can I calculate GST for different GST rates?
Yes! Our calculator supports all standard tax slabs (0%, 5%, 12%, 18%, 28%) as well as custom decimal tax rates.
Does the calculator work for GST-exclusive and GST-inclusive prices?
Yes. You can toggle between "GST Exclusive" (adding GST to base) and "GST Inclusive" (extracting GST from gross amount) modes seamlessly.
Is the GST calculator free and private?
Yes, 100% free with no sign-ups or server processing. All computations execute locally in your web browser, ensuring complete data privacy.
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