Introduction
This free GST Calculator helps you quickly find the GST amount, the price before tax, or the total price after tax. GST stands for Goods and Services Tax. It is a tax added to the price of most goods and services. With this tool, you can add GST to a base price, remove GST from a total price, or work backward from just the tax amount. Simply pick a GST rate, enter any one value, and the calculator does the rest. It works with common tax slab rates like 5%, 10%, 12%, 15%, 18%, and 28%, and you can also type in any custom rate you need. The results update instantly and include a clear visual chart that shows how much of the final price is tax and how much is the actual cost.
How to Use Our GST Calculator
Enter a GST rate and any one price value below. The calculator will instantly figure out the other two values and show you a visual breakdown of the tax.
GST Rate (%): Pick a common slab rate like 5%, 10%, 12%, 18%, or 28% by clicking a button, or type any custom rate between 0 and 100 into the rate box.
Currency Symbol: Change the currency symbol if you do not use dollars. Type up to 3 characters like €, £, or ₹.
GST Exclusive Price: Enter the price before tax and click "Add GST." The calculator will add the GST on top and show you the tax amount and the final inclusive price.
GST Amount: If you only know the tax amount, type it here and click "Get Prices." The calculator will work backward to find both the pre-tax price and the total price.
GST Inclusive Price: Enter the total price that already has tax built in and click "Get GST." The calculator will split it into the base price and the GST amount for you.
Results: All three values appear in the results section along with a donut chart that shows how much of the total price is tax and how much is the actual cost.
What Is GST and How Does This Calculator Help?
GST stands for Goods and Services Tax. It is a tax added to the price of most goods and services when you buy them. The government collects this tax from businesses, and businesses pass the cost on to buyers. Many countries use GST, including India, Australia, Canada, and Singapore. Each country sets its own GST rates.
There are two main prices you will see when GST is involved:
- GST Exclusive Price – This is the base price before any tax is added. It is also called the net price or pre-tax price.
- GST Inclusive Price – This is the final price you actually pay. It includes the base price plus the GST amount on top of it.
The GST amount is the difference between the inclusive and exclusive prices. To find it, you multiply the exclusive price by the GST rate. For example, if an item costs $100 before tax and the GST rate is 10%, the GST amount is $10, and the total price you pay is $110.
This calculator works in three directions. You can enter any one of the three values (exclusive price, GST amount, or inclusive price), and it will calculate the other two. This is useful for business owners creating invoices, shoppers who want to know how much tax they are paying, or accountants who need to break down a total into its tax and pre-tax parts. If you are dealing with sales tax in the United States rather than GST, our Sales Tax Calculator is designed specifically for that purpose.
Common GST slab rates like 0%, 5%, 10%, 12%, 15%, 18%, and 28% are built in for quick selection. You can also type in any custom rate between 0% and 100% if your country or product uses a different rate.