GST Calculator – Add or Remove GST
Calculate GST amounts, add GST to a price, or remove GST from an inclusive price with our easy-to-use calculator.
CGST (9%)
₹90.00
SGST (9%)
₹90.00
| Component | Rate | Amount (₹) |
|---|---|---|
| Original Amount | - | ₹1000.00 |
| CGST | 9% | ₹90.00 |
| SGST | 9% | ₹90.00 |
| Total GST | 18% | ₹180.00 |
| Final Amount | - | ₹1180.00 |
What is a GST Calculator?
A GST (Goods and Services Tax) calculator is a financial tool designed to help individuals and businesses calculate the GST component of a transaction. It can be used in two primary ways: to add GST to a price (GST-exclusive to GST-inclusive calculation) or to extract the GST amount from a price that already includes GST (GST-inclusive to GST-exclusive calculation).
In India, GST is a comprehensive indirect tax that has replaced multiple taxes like VAT, service tax, and excise duty. It follows a multi-tier structure with different rates (5%, 12%, 18%, and 28%) applicable to different categories of goods and services. For intra-state transactions, GST is divided equally between Central GST (CGST) and State GST (SGST).
This calculator simplifies GST calculations for various purposes such as invoice preparation, expense management, input tax credit calculations, and understanding the tax component of purchases. It's particularly useful for businesses, freelancers, and consumers who need to quickly determine the GST amount or the pre-GST value of goods and services.
How to Use This Calculator
- Select the calculation type - Choose whether you want to add GST to an amount or remove GST from an amount that already includes it.
- Enter the amount - Input the original amount (if adding GST) or the GST-inclusive amount (if removing GST).
- Select the GST rate - Choose the applicable GST rate from the common options (5%, 12%, 18%, 28%) or enter a custom rate.
- View the results - The calculator will instantly show the GST amount, the total amount, and the breakdown of CGST and SGST components.
- Check the detailed breakdown - Review the detailed breakdown of all components and the formulas used for the calculation.
Calculation Formula & Example
The Formula
GST Amount = Original Amount × (GST Rate ÷ 100)
Where:
- GST Amount = The tax amount to be added
- Original Amount = The pre-tax value of goods or services
- GST Rate = The applicable GST percentage (5%, 12%, 18%, or 28%)
Example Calculation
Let's calculate GST for a product with the following parameters:
- Original Amount (pre-GST): ₹1,000
- GST Rate: 18%
Adding GST:
GST Amount = Original Amount × (GST Rate ÷ 100)
GST Amount = ₹1,000 × (18 ÷ 100)
GST Amount = ₹1,000 × 0.18
GST Amount = ₹180
Total Amount = Original Amount + GST Amount
Total Amount = ₹1,000 + ₹180 = ₹1,180
Removing GST:
If we have a GST-inclusive amount of ₹1,180 and need to find the original amount:
Original Amount = GST-inclusive Amount ÷ (1 + GST Rate ÷ 100)
Original Amount = ₹1,180 ÷ (1 + 18 ÷ 100)
Original Amount = ₹1,180 ÷ 1.18
Original Amount = ₹1,000
GST Amount = GST-inclusive Amount - Original Amount
GST Amount = ₹1,180 - ₹1,000 = ₹180
CGST and SGST Breakdown:
For intra-state transactions, GST is divided equally between CGST and SGST:
CGST = GST Amount ÷ 2 = ₹180 ÷ 2 = ₹90
SGST = GST Amount ÷ 2 = ₹180 ÷ 2 = ₹90
Benefits of Using This Calculator
- Invoice Preparation - Quickly calculate the GST amount to add to your invoices or bills, ensuring accurate tax collection.
- Budget Planning - Understand the total cost including taxes when planning purchases or estimating project costs.
- Input Tax Credit Calculation - For businesses, easily determine the input tax credit that can be claimed on purchases.
- Price Comparison - Compare prices on a pre-tax basis when different vendors quote prices with and without GST included.
- Tax Component Analysis - Analyze how much of your payment goes towards taxes versus the actual value of goods or services.
- Compliance Verification - Verify that the correct GST amount has been charged on invoices received from suppliers.
Calculator Use Cases
Small businesses and freelancers can use the calculator to add the correct GST amount to their invoices, ensuring compliance with tax regulations while providing transparent billing to their clients.
Finance teams can extract the pre-GST value from expense reports to properly categorize and account for expenses, separating the actual cost from the tax component for accurate financial reporting.
Retailers can calculate both GST-exclusive and GST-inclusive prices to determine optimal pricing strategies, ensuring their margins are maintained after accounting for tax obligations.
Consumers can understand the actual value of products by removing GST from displayed prices, helping them make more informed purchase decisions based on the true value of goods rather than the tax-inflated price.
Frequently Asked Questions
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