Sales Tax Calculator (GST/VAT)
Net Amount
Total Tax
Gross Amount
GST Calculator – Instantly Calculate GST, VAT, or Sales Tax Online
What is a GST Calculator?
A GST Calculator is a simple yet powerful online tool that helps you calculate Goods and Services Tax (GST) or Value Added Tax (VAT) within seconds. Whether you are a business owner, freelancer, or consumer, this calculator lets you easily determine the tax-inclusive or tax-exclusive price for any product or service.
Our online GST Calculator supports multiple countries, allowing users from India, Australia, New Zealand, Canada, Singapore, and other GST/VAT-based countries to compute their sales tax accurately. With just a few clicks, you can know how much tax you need to add or remove from a price — saving time, effort, and human error.
How Does a GST Calculator Work?
The working of a GST Calculator is simple and accurate. You only need to:
Select your country – Choose your region to apply the correct GST or VAT structure.
Enter the initial amount – This can be the pre-tax or post-tax amount.
Choose the tax rate (%) – Select the applicable GST/VAT percentage for your region.
Add or remove GST – The calculator will instantly show the total tax amount, net amount, and gross amount.
For instance, if you are in India and enter ₹15,000 with an 18% GST rate, the calculator automatically computes:
CGST: ₹1,350
SGST: ₹1,350
Total GST: ₹2,700
Gross Amount: ₹17,700
This feature saves time for small business owners, accountants, and freelancers who handle multiple invoices daily.
Key Features of Our GST Calculator
Our GST Calculator tool comes with advanced features that make it more than just a basic tax calculator. Below are the main highlights:
🌍 Multi-Country Support
You can calculate taxes for various countries that use GST or VAT systems, including:
India (GST)
Australia (GST)
New Zealand (GST)
Singapore (GST)
Canada (GST/HST)
United Kingdom (VAT)
European Union Nations (VAT)
Simply select your country from the dropdown, and the calculator adjusts the tax rules accordingly.
💸 Add or Remove GST/VAT
You can add GST to find the gross price or remove GST to determine the base price before tax. This flexibility helps both business owners (who add GST) and customers (who want to know the pre-tax price).
For example:
Add GST: ₹15,000 + 18% = ₹17,700
Remove GST: ₹17,700 – 18% = ₹15,000
⚙️ Real-Time Instant Calculation
No need for manual formulas or spreadsheets. As soon as you input your data, the calculator automatically updates all fields in real-time — showing CGST, SGST, Total GST, and Gross Amount instantly.
📍 State or Regional Tax Selection
In countries like India, GST is divided into:
CGST (Central GST)
SGST (State GST)
IGST (Integrated GST)
Our calculator includes an option to select your State or Union Territory, ensuring accurate breakdowns based on your location.
🧾 Detailed Tax Summary
After the calculation, the tool displays:
Net Amount (before tax)
CGST and SGST (if applicable)
Total GST/VAT
Gross Amount (after tax)
Amount in words for easy documentation or invoice preparation
This makes it ideal for eCommerce sellers, invoice generation, and financial recordkeeping.
🌐 User-Friendly Interface
The design of our GST Calculator is clean, modern, and mobile-responsive. It allows anyone — even without accounting knowledge — to perform complex tax calculations in just a few seconds.
📤 Supports Multiple Currencies
Whether you enter an amount in INR, USD, EUR, GBP, AUD, or CAD, the calculator works seamlessly. It doesn’t convert currencies automatically but retains the entered value and tax rate for clarity.
Why Use Our GST Calculator?
✅ Save Time and Avoid Manual Errors
Manual GST calculations can lead to mistakes, especially with decimals or varying rates. Our calculator ensures 100% accuracy and saves valuable time.
✅ Perfect for Businesses and Individuals
Whether you’re a small business, freelancer, shop owner, accountant, or customer, this tool helps you calculate taxes instantly without relying on complex formulas.
✅ Helps in Billing and Invoicing
Businesses can use this calculator to prepare invoices, add tax accurately, and avoid under or overcharging customers.
✅ Free, Fast, and Online
No software installation required. You can use our free GST Calculator from any device — desktop, tablet, or mobile.
Understanding GST and VAT
🧠 What is GST?
GST, or Goods and Services Tax, is a unified indirect tax levied on the supply of goods and services. It replaces multiple cascading taxes like excise duty, service tax, and VAT.
For example, in India:
Intra-state transactions apply CGST + SGST.
Inter-state transactions apply IGST.
🌎 What is VAT?
Value Added Tax (VAT) is similar to GST but used in European and some other countries. VAT is charged at each stage of the supply chain but only on the value added at each step.
While the terminology differs, both GST and VAT serve the same purpose — ensuring uniform taxation and transparency in pricing.
How to Use the GST Calculator (Step-by-Step)
Select Country: Choose your country to apply the correct GST/VAT rate structure.
Enter Amount: Input the base price or total price of the product/service.
Select Tax Rate (%): Choose from standard tax rates such as 5%, 12%, 18%, or 28% (for India) or other applicable rates for your region.
Choose ‘Add GST’ or ‘Remove GST’:
Use Add GST if your price is before tax.
Use Remove GST if your price already includes tax.
View Results: Instantly see the Net Amount, CGST, SGST, Total GST, and Gross Amount along with the amount in words.
That’s it — fast, accurate, and effortless!
Example Calculation
Let’s say you are a retailer in Karnataka, India selling a product worth ₹15,000 with an 18% GST rate.
CGST: 9% of ₹15,000 = ₹1,350
SGST: 9% of ₹15,000 = ₹1,350
Total GST: ₹2,700
Gross Amount: ₹15,000 + ₹2,700 = ₹17,700
So, your customer pays ₹17,700 (including all taxes).
Benefits of Using the GST Calculator
Eliminates manual calculations
Reduces accounting errors
Helps in accurate invoicing
Saves time during billing and reporting
Works for multiple countries and tax systems
100% free, reliable, and instant
Frequently Asked Questions (FAQs)
1. What is the difference between adding and removing GST?
Adding GST helps find the total amount including tax.
Removing GST helps find the base price before tax.
2. Can I use this GST Calculator for multiple countries?
Yes! The calculator supports global GST/VAT systems — just select your country from the dropdown.
3. What are the standard GST rates in India?
The common GST rates in India are 5%, 12%, 18%, and 28%, depending on the category of goods or services.
4. Is this calculator accurate?
Absolutely. The tool follows real-time mathematical formulas and regional tax structures to provide precise GST/VAT calculations every time.
5. Can I use this calculator on mobile?
Yes, the GST Calculator is fully responsive and works seamlessly on smartphones, tablets, and desktops.
📌 Bookmark our GST Calculator page to calculate GST at any time.
