Free GST Calculator Online (India)
Calculate GST Inclusive & Exclusive amounts instantly with our Reverse GST Calculator.
How to Calculate GST Online?
Our Smart GST Calculator allows you to calculate the Goods and Services Tax (GST) in two ways: Forward Charge (Adding GST) and Reverse Charge (Removing GST). Whether you are a business owner generating invoices or a consumer checking tax rates, this tool helps you find the precise amounts instantly.
GST Exclusive Calculation
Use the “Add GST” tab when you have a base price and need to add tax on top of it. This is useful for creating invoices.
Formula: Base Cost × (GST% / 100)
GST Inclusive Calculation
Use the “Reverse GST” tab when you have the final MRP (Total Price) and want to find the original pre-tax cost.
Formula: Total / (1 + (GST% / 100))
Current GST Rates in India (2025)
Understanding the correct slab is crucial for accurate calculation. Below are the standard categories:
- 5% Rate: Essential food items, packaged food, cream, skimmed milk powder, and branded paneer.
- 12% Rate: Processed foods, butter, cheese, ghee, pickles, and mobile phones.
- 18% Rate: Most services, capital goods, hair oil, toothpaste, soaps, and industrial intermediaries.
- 28% Rate: Luxury goods, automobiles, cement, and durable consumer goods like ACs and refrigerators.
Frequently Asked Questions (FAQs)
How to calculate GST from total amount?
To calculate GST from the total amount (Inclusive), use the Reverse Calculation method. Divide the Total Amount by [1 + (GST Rate/100)]. For example, for ₹118 total at 18% tax: 118 / 1.18 = ₹100 (Original Cost).
What is the formula for reverse GST calculation?
The formula for reverse GST is: GST Amount = Total Amount – [Total Amount / (1 + (Rate/100))]. This separates the tax component from the MRP.
Is this GST calculator free to use?
Yes, this online GST calculator is 100% free for unlimited use. It supports all major Indian tax slabs (5%, 12%, 18%, 28%) and custom rates.
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