Calculate GST inclusive and exclusive amounts instantly with detailed CGST, SGST and IGST tax breakdowns for invoices, billing and accounting.
GST added separately on base amount
GST extracted from total amount
This free online GST calculator helps businesses, shop owners, accountants, freelancers, and taxpayers calculate GST instantly with accurate CGST, SGST, and IGST tax breakdowns. The calculator supports both GST inclusive and GST exclusive calculations for invoices, billing, accounting, and tax planning.
GST or Goods and Services Tax is one of the most important indirect taxes in India. Businesses regularly use GST calculations while creating invoices, preparing quotations, calculating product prices, filing GST returns, and managing tax compliance.
This advanced calculator simplifies tax calculations by automatically computing total GST amount, invoice totals, base values, and tax components. Users can calculate GST using standard rates like 5%, 12%, 18%, and 28%, or apply custom GST percentages instantly.
The calculator is fully mobile responsive and works smoothly on Android phones, iPhones, tablets, laptops, and desktop devices without requiring any software installation.
| Amount | GST Rate | GST Amount | Final Total |
|---|---|---|---|
| ₹1,000 | 18% | ₹180 | ₹1,180 |
| ₹5,000 | 12% | ₹600 | ₹5,600 |
| ₹10,000 | 28% | ₹2,800 | ₹12,800 |
GST calculations are performed differently for GST-exclusive and GST-inclusive amounts.
GST Exclusive Formula: GST Amount = (Original Cost × GST %) / 100
Final Invoice Formula: Net Price = Original Cost + GST Amount
For GST-inclusive calculations, the tax amount is extracted from the total invoice value instead of added separately.
GST in India is divided into different tax components depending on whether the transaction is intra-state or inter-state.
For intra-state sales, GST is split equally into CGST and SGST. For inter-state sales, the full GST amount is charged as IGST.
Accurate GST calculation is important for tax compliance, invoice accuracy, accounting transparency, and financial reporting. Businesses use GST calculators to reduce billing errors and simplify tax calculations.
GST or Goods and Services Tax is an indirect tax applied on the supply of goods and services in India. It replaced multiple indirect taxes with a unified taxation system.
A GST calculator helps calculate GST amounts instantly for invoices, billing, accounting, quotations, and pricing. It calculates GST inclusive and GST exclusive values automatically.
GST inclusive amount means the total price already includes GST. The GST amount is extracted from the final amount instead of added separately.
GST exclusive amount means GST is added separately on the original base amount to calculate the final invoice value.
GST is calculated by multiplying the taxable amount with the GST percentage rate. For example, 18% GST on ₹1,000 equals ₹180.
GST Amount = (Original Amount × GST Rate) ÷ 100
CGST is Central Goods and Services Tax collected by the Central Government, while SGST is State Goods and Services Tax collected by State Governments for intra-state transactions.
IGST or Integrated Goods and Services Tax is charged on inter-state transactions and imports between different states in India.
For intra-state transactions, GST is equally divided between CGST and SGST. Example: 18% GST becomes 9% CGST and 9% SGST.
Yes, this calculator supports both GST inclusive and GST exclusive calculations with complete invoice breakdowns.
Yes, you can enter custom GST rates manually for specialized tax calculations and industry-specific requirements.
The most common GST slabs in India are 5%, 12%, 18%, and 28%, depending on product and service categories.
Yes, this online GST calculator is completely free for personal, business, accounting, and commercial use.
Yes, businesses, shop owners, freelancers, accountants, and agencies can use this calculator for invoices, billing, quotations, and GST estimation.
Yes, this GST calculator is fully responsive and works smoothly on Android phones, iPhones, tablets, laptops, and desktop computers.
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