GST Calculator
Quickly calculate Goods and Services Tax for any amount.
Base Amount
$0.00
GST Amount
$0.00
Total Amount
$0.00
How to Use the GST Calculator
- Choose Calculation Type: Select "Add GST" if your amount doesn't include GST, or "Remove GST" if it's a final price with GST already included.
- Enter the Amount: Input the relevant amount in the text field.
- Select GST Rate: Click on one of the standard GST rate buttons (5%, 12%, etc.). For a different rate, click "Custom" and enter the percentage.
- Calculate: Press the "Calculate" button to see the detailed results.
- View Breakdown: The results will show you the Base Amount, the GST Amount, and the Total Amount clearly separated.
About Our Free GST Calculator
The Goods and Services Tax (GST) is an indirect tax used in many countries on the supply of goods and services. For businesses and consumers alike, understanding how to add or remove GST from a price is essential for accurate accounting, invoicing, and budgeting. Our calculator simplifies this process, whether you're starting with a pre-tax price or a final retail price.
This tool features a dual-functionality: you can either add GST to a base price (exclusive calculation) or extract the GST amount from a total price (inclusive or reverse calculation). With presets for common GST slabs and an option for custom rates, it is flexible enough for various regions and scenarios. It's a vital tool for business owners, accountants, sales professionals, and shoppers who want to understand the tax component of their purchases.
Frequently Asked Questions (FAQ)
What's the difference between "Add GST" and "Remove GST"?
Add GST (Exclusive): Use this when you have a price *before* tax and you want to know the tax amount and the final price. For example, a wholesaler's price.
Remove GST (Inclusive): Use this when you have a final price that *already includes* tax (like a retail sticker price) and you want to find out how much of that price was the base cost and how much was the GST component. This is often called a "reverse GST calculation".
Can I use this for my country's specific GST/VAT rates?
Yes. While we have provided common GST slabs as presets (based on countries like India), the "Custom" rate feature makes this tool universally applicable. You can enter any percentage for Value Added Tax (VAT), sales tax, or any other similar consumption tax used in your country.
How is the reverse (inclusive) GST calculated?
To calculate the GST from an inclusive amount, the formula is:
Base Amount = Total Amount / (1 + (GST Rate / 100))
GST Amount = Total Amount - Base Amount.
Our calculator handles this logic for you when you select "Remove GST".