💰 GST Calculator 2026
Calculate Goods and Services Tax instantly for Indian tax slabs. Supports GST Exclusive and Inclusive calculations for 5%, 12%, 18%, and 28% rates.
5% Slab
Essentials
12% Slab
Standard
18% Slab
Services
28% Slab
Luxury
3% Slab
Gold/Jewellery
GST Calculator
Net Amount
₹ 1,000
Total Gross Amount
₹ 1,180
📚 What is Goods and Services Tax (GST)?
The Goods and Services Tax (GST) is a value-added tax levied on most goods and services sold for domestic consumption. In India, GST is a comprehensive, multi-stage, destination-based tax that has replaced many indirect taxes. Whether you are a business owner generating invoices or a consumer checking a bill, knowing the exact tax amount is crucial.
📊 How to Use This Calculator?
- Select Mode: Choose 'Exclusive' if the tax needs to be added, or 'Inclusive' if the tax is already part of the price.
- Enter Amount: Input the net price of the goods or service.
- Select GST Rate: Click on the applicable slab (3%, 5%, 12%, 18%, or 28%).
- Calculate: Click the button to see the Net Amount, Tax Amount, and Total.
📐 GST Calculation Formulas
1. GST Exclusive Formula
GST Amount = (Original Cost × GST Rate) / 100
Net Price = Original Cost + GST Amount
2. GST Inclusive Formula
GST Amount = Original Cost - [Original Cost / (1 + (GST Rate / 100))]
💡 Real-World Example
Imagine you are buying a smartphone worth ₹10,000 and the GST rate is 18%.
Exclusive Case: You need to pay ₹10,000 + 18% tax. The tax is ₹1,800. Total bill = ₹11,800.
Inclusive Case: You paid ₹10,000 total. This means the phone's actual price was approx ₹8,474 and you paid ₹1,525 as tax.
📋 GST Slabs in India (2026)
| GST Rate | Applicable Goods/Services | Examples |
|---|---|---|
| 0% | Essential items | Fresh milk, eggs, vegetables |
| 5% | Essential goods | Sugar, tea, edible oil |
| 12% | Standard goods | Butter, cheese, mobile phones |
| 18% | Services & standard goods | Restaurants, AC, computers |
| 28% | Luxury items | Cars, tobacco, high-end electronics |
| 3% | Gold/Jewellery | Gold ornaments, silver |
❓ Frequently Asked Questions
What are the current GST slabs in India?
The primary slabs are 0% (exempt goods), 5% (essentials), 12% (standard), 18% (services/standard), and 28% (luxury goods). Some items like gold have special rates (3%).
What's the difference between GST Exclusive and Inclusive?
GST Exclusive: Tax is added on top of the product price. GST Inclusive: Tax is already included in the final price. Most retail bills show inclusive GST, while business invoices often show exclusive GST.
Why is this tool useful for businesses?
Businesses often need to perform reverse calculations (Inclusive GST) to find the actual base price of a product for accounting purposes. This tool automates that complex math, saving time and reducing errors in invoicing and tax filing.
How to calculate GST at 18%?
To calculate 18% GST, multiply the amount by 0.18. For example, if the price is ₹1,000, GST = ₹1,000 × 0.18 = ₹180. For inclusive calculation, use the formula: GST = Total × (Rate ÷ (100 + Rate)).
Do I need to pay GST if my business turnover is below threshold?
For most businesses, GST registration is mandatory if annual turnover exceeds ₹40 lakhs (₹20 lakhs for special category states). However, you can voluntarily register even if below threshold. Consult your tax advisor for specific guidance.
⚠️ Disclaimer: This calculator provides estimated GST amounts based on standard rates. Actual tax liability may vary based on specific HSN codes, cess, and other factors. Consult your tax advisor for official calculations.