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Tax Calculator · India GST
GST Calculator
Add or remove GST from any amount instantly — with a full step-by-step breakdown.
Calculator
₹
⚠ Please enter a valid positive amount.
%
⚠ Please select a slab or enter a custom rate (0–100).
Result
What is GST?
Goods and Services Tax (GST) is India's unified indirect tax system, introduced on 1 July 2017. It replaced a complex web of central and state taxes — VAT, service tax, excise duty, and more — with a single, destination-based tax collected at every point of value addition.
GST applies to the supply of all goods and services across India, making it one of the biggest tax reforms in the country's history. The tax is governed by the GST Council and administered jointly by the Central and State Governments.
GST Rate Slabs in India
| GST Slab | Category | Examples |
|---|---|---|
| 0% | Exempted | Fresh vegetables, milk, eggs, bread |
| 5% | Essential Goods | Packed food, medicines, domestic LPG |
| 12% | Standard Goods | Butter, processed food, mobile phones |
| 18% | Most Services | Restaurants, electronics, banking fees |
| 28% | Luxury / Sin | Cars, tobacco, aerated drinks, casinos |
How to Use This GST Calculator
- Select Add GST (to find total with tax) or Remove GST (to find original price from a tax-inclusive amount).
- Enter the amount in Indian Rupees (₹).
- Choose a GST slab — 5%, 12%, 18%, or 28% — or type a custom percentage.
- Click Calculate GST or press Enter.
- View the instant result with a full step-by-step breakdown, then copy or share it.
Example Calculation
Scenario: A restaurant bill comes to ₹850 before GST. At 18% GST, what is the final amount?
-
1Identify the original amount and GST rateOriginal Price = ₹850 | GST Rate = 18%
-
2Calculate GST amountGST = 850 × (18 ÷ 100) = ₹153.00
-
3Add GST to get final totalTotal = 850 + 153 = ₹1,003.00
Benefits of Using This Calculator
Instant Results
Calculate GST in under a second for any amount.
Add & Remove
Works both ways — forward and reverse GST calculation.
Step-by-Step
Understand the math with a clear formula breakdown.
Mobile Ready
Works perfectly on phones, tablets, and desktops.
100% Private
No data sent to any server. Everything runs in your browser.
Completely Free
No signup, no ads, no limits. Use it as often as you like.
Frequently Asked Questions
GST Exclusive means the listed price does not include GST — the tax is added on top (e.g., ₹1,000 + 18% = ₹1,180).
GST Inclusive means the price already contains GST — you use reverse calculation to find the original price (e.g., ₹1,180 ÷ 1.18 = ₹1,000).
Use the formula: Original Price = Inclusive Amount ÷ (1 + GST Rate / 100).
For example, if you paid ₹1,180 and GST is 18%: Original = 1180 ÷ 1.18 = ₹1,000. Switch the calculator to "Remove GST" tab for an automatic calculation.
Most restaurants charge 5% GST (without Input Tax Credit). AC restaurants and those in starred hotels may charge 18% GST. Hotel restaurants where room tariff exceeds ₹7,500 per night apply the 18% slab. Always check your bill or ask the establishment.
Yes. GST is a nationwide unified tax, so the same rate applies regardless of which state the transaction occurs in. However, the revenue is split between the Central Government (CGST) and the respective State Government (SGST), each at half the total rate. For inter-state transactions, IGST (Integrated GST) applies at the full rate.
Absolutely! While the four standard slabs (5%, 12%, 18%, 28%) are pre-set for convenience, you can enter any custom percentage (e.g., 3%, 0.25%, 1.5%) in the "Custom rate" field. This is especially useful for cess, composition levy, or non-standard rates.
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