Calculate GST Instantly - Inclusive, Exclusive & Reverse GST
Since its historic launch in July 2017, the Goods and Services Tax (GST) has unified the Indian market under a single indirect tax regime. By replacing a chaotic structure of VAT, Service Tax, and Excise Duty, GST has simplified business operations for millions of taxpayers across the nation.
GST (Goods and Services Tax) is an indirect tax that has replaced many indirect taxes in India such as excise duty, VAT, services tax, etc. Introduced on July 1, 2017, GST is a comprehensive, multi-stage, destination-based tax that is levied on every value addition. It has transformed India into a unified common market.
GST is a destination-based tax levied on every value addition. To manage the revenue distribution between the Central and State governments, it is divided into three main categories:
| Type of GST | Full Form | Applicability |
|---|---|---|
| CGST | Central GST | Collected by the Centre on transactions within a single state (Intrastate). Rate is half of the total GST rate. |
| SGST | State GST | Collected by the State on transactions within a single state (Intrastate). Rate is half of the total GST rate. |
| IGST | Integrated GST | Collected by the Centre for transactions between two different states (Interstate). Rate equals the total GST rate. |
The GST Council categorizes goods and services into specific tax brackets to ensure that essential items remain affordable while luxury goods contribute more to the exchequer. Here's a comprehensive breakdown:
| Tax Slab | Category | Common Examples |
|---|---|---|
| 0% (Exempt) | Essentials | Fresh fruits, vegetables, milk, bread, salt, unbranded flour, eggs, education services, healthcare services |
| 5% | Mass Consumption | Sugar, spices, tea, coffee, edible oil, life-saving drugs, coal, domestic LPG, branded cereals, footwear (below ₹500), transport services |
| 12% | Standard Rate 1 | Butter, cheese, ghee, processed food, cell phones, computers, almonds, fruit juice, packaged food items |
| 18% | Standard Rate 2 | Hair oil, toothpaste, soap, electronic items, capital goods, industrial intermediaries, most services, AC restaurants |
| 28% | Luxury/Sin Goods | Race club betting, tobacco products, aerated drinks, high-end automobiles, air conditioners, refrigerators, washing machines, cement |
Calculating GST manually can be tricky, especially when calculating inclusive prices. Our GST calculator automates this process to prevent accounting errors and save you valuable time.
Our calculator offers three calculation modes:
Formula for GST Addition (Exclusive):
| Step | Formula | Example (₹1,000 @ 18%) |
|---|---|---|
| Calculate GST Amount | GST Amount = (Original Cost × GST%) / 100 | GST = (1,000 × 18) / 100 = ₹180 |
| Calculate Net Price | Net Price = Original Cost + GST Amount | Net = 1,000 + 180 = ₹1,180 |
Formula for GST Removal (Inclusive):
| Step | Formula | Example (₹1,180 @ 18%) |
|---|---|---|
| Calculate Base Amount | Base = Total Price / (1 + (GST% / 100)) | Base = 1,180 / 1.18 = ₹1,000 |
| Calculate GST Amount | GST Amount = Total Price - Base Amount | GST = 1,180 - 1,000 = ₹180 |
The hallmark of the GST regime is the Input Tax Credit. It allows a registered taxpayer to claim credit for the tax paid on their purchases (inputs). This ensures that tax is only levied on the "Value Addition" at each stage, effectively eliminating the cascading tax effect that plagued the previous tax system.
| Transaction Stage | GST Paid on Inputs | GST Collected on Output | Net GST Payable |
|---|---|---|---|
| Manufacturer buys raw materials | ₹500 | - | ₹500 (ITC Available) |
| Manufacturer sells finished product | - | ₹800 | ₹300 (₹800 - ₹500 ITC) |
Example: If a manufacturer pays ₹500 as GST on raw materials and later collects ₹800 as GST on the sale of the finished product, they only need to deposit ₹300 (₹800 - ₹500) with the government. This mechanism ensures there's no tax on tax.
To remain compliant, businesses must regularly file returns via the GST portal. The most common returns include:
| Return Type | Description | Due Date |
|---|---|---|
| GSTR-1 | Details of all outward supplies (sales) made during the month/quarter | 11th of next month (monthly) / 13th of month after quarter (quarterly) |
| GSTR-3B | A self-declared summary return for paying taxes | 20th of next month (monthly) / 22nd or 24th for quarterly |
| GSTR-9 | The consolidated annual return filed by taxpayers | 31st December of next financial year |
This calculator is designed for everyone involved in Indian commerce:
Q: Is this GST calculator free to use?
A: Yes, our GST calculator is completely free with unlimited calculations. There are no hidden charges, subscriptions, or registration requirements.
Q: Can I calculate GST for custom rates?
A: Absolutely! While we provide quick-select buttons for common rates (5%, 12%, 18%, 28%), you can enter any custom GST rate between 0% and 100% for specialized calculations.
Q: What's the difference between CGST, SGST, and IGST?
A: For intra-state transactions (within the same state), GST is split equally between CGST (Central Government) and SGST (State Government). For inter-state transactions (between different states), the entire GST is collected as IGST by the Central Government, which is then distributed between states.
Q: How accurate is this calculator?
A: Our calculator uses precise mathematical formulas and rounds to 2 decimal places for accurate financial calculations. It follows the official GST calculation methods prescribed by the Indian government.
Q: Can I use this for business invoicing?
A: Yes! The calculator provides exact GST amounts that you can use for creating invoices, quotations, and financial statements. However, always cross-verify with your accountant for official business records.
Q: Does the calculator store my data?
A: No, all calculations are performed in your browser. We do not store, track, or transmit any of your calculation data to our servers.
GST has made India a more transparent and business-friendly nation by creating a unified tax structure. By leveraging a reliable GST Calculator like ours, business owners can ensure precise invoicing, better cash flow management, and seamless tax compliance. Stay ahead of your finances by using the right tools and staying informed on the latest policy shifts from the GST Council.
Whether you're a seasoned business professional or just starting your entrepreneurial journey, understanding and accurately calculating GST is crucial for success in the Indian market. Our calculator simplifies this process, helping you focus on what matters most - growing your business.