Sales Tax Calculator
Calculate how much GST applies to any product or service. Enter a price, pick a GST rate, and instantly see the tax amount and total bill.
Compare All GST Rates
Real-time recalculation based on base capital outlay: ₹0.00
| GST Rate | Base Outlay | Combined Rate | Tax Levy | Total Bill |
|---|---|---|---|---|
| 5% Essential GST Slab | ₹0.00 | 5.000% | ₹0.00 | ₹0.00 |
| 12% Standard GST Slab | ₹0.00 | 12.000% | ₹0.00 | ₹0.00 |
| 18% Standard GST Slab | ₹0.00 | 18.000% | ₹0.00 | ₹0.00 |
| 28% Luxury GST Slab | ₹0.00 | 28.000% | ₹0.00 | ₹0.00 |
| 3% Precious Metals (Gold/Silver) | ₹0.00 | 3.000% | ₹0.00 | ₹0.00 |
| 0% Exempt Goods | ₹0.00 | 0.000% | ₹0.00 | ₹0.00 |
Sales Tax Calculator  State & Local Tax Engine
A GST Calculator helps you quickly find out how much tax applies to any purchase or sale. Whether you are a buyer wanting to know the full price, or a seller making sure you charge the right amount — this tool gives you an instant answer.
What is Sales Tax?
Sales tax is a consumption tax imposed by the government on the sale of goods and services. In the United States, there is no federal sales tax. Instead, taxes are levied at the State level, and further surcharges are often added at the County, City, and Compensation Cess levels. This dual-tax structure ensures standard rates across India (5%, 12%, 18%, 28%) while maintaining revenue sharing.
Formula Used
Total GST = SGST + CGST + IGST + Cess
Total Tax = Base Amount x (Combined Tax Rate / 100)
Final Price = Base Amount + Total Tax
Reverse (Price Includes Tax) Formula:
Base Amount = Total Price / (1 + (Combined Tax Rate / 100))
How to Use This Calculator
- Enter the Transaction Amount (the pre-tax cost of your goods).
- Select a Calculation Mode. Use "Pre-Tax" to add tax to a base amount, or "Price Includes Tax" if you already know the total final price and need to extract the hidden tax.
- Pick a GST slab from the quick buttons, or adjust the sliders to set exact rates.
- View the exact breakdown of where your tax dollars are going in the dashboard console.
Key Benefits
- Reverse Calculation: Instantly back-calculate the base price if you are given a receipt with only the final total.
- Detailed Breakdown: See exactly how much goes to state (SGST) vs central (CGST) government.
- B2B Exemption Support: Toggle wholesale transactions to immediately zero out the tax liability for resale certificates.
Common Mistakes to Avoid
- Common Mistake: Do not calculate GST using only the SGST rate. The total GST is SGST + CGST combined, which means you need to add both halves together.
- Wrong Origin vs Destination: If you are shipping a product to a customer in another state, you generally must charge the tax rate of their destination, not your origin address.
- Taxing Exempt Goods: Many states exempt SaaS, digital products, and groceries from sales tax. Be sure to verify your product classification.
Frequently Asked Questions
What is GST?
Following the South Dakota v. Wayfair Supreme Court decision, businesses must collect sales tax in states where they exceed a certain revenue threshold (often $100,000) or transaction volume, even if they have no physical presence there.
Are there states with no sales tax?
Yes. Five states currently have no statewide sales tax: Alaska, Delaware, Montana, New Hampshire, and Oregon (often remembered by the acronym NOMAD). Note that Alaska does allow local municipalities to charge their own sales tax.