GST Reverse Calculator
Calculate original price and GST from a GST-inclusive amount.
What is a GST Reverse Calculator?
A GST Reverse Calculator is an online tool used to calculate the original price and GST amount when the final price already includes GST.
Instead of adding GST to a price, a reverse GST calculation removes the GST component from the GST-inclusive amount to find the taxable value.
How Does GST Reverse Calculation Work?
When an amount already includes GST, the original taxable value cannot be calculated simply by subtracting the GST percentage from the total amount. The GST-inclusive amount needs to be divided by the appropriate factor.
GST Reverse Calculation Formula
The formula for finding the original price from a GST-inclusive amount is:
GST amount can then be calculated as:
How to Use the GST Reverse Calculator
- Enter the total amount including GST.
- Select the applicable GST rate.
- Click Calculate GST.
- View the original price.
- View the GST amount and total amount.
GST Reverse Calculation Example
Suppose the final price including GST is ₹11,800 and the GST rate is 18%.
= ₹10,000
The GST amount is:
= ₹1,800
Therefore:
GST = ₹1,800
Total = ₹11,800
GST Inclusive vs GST Exclusive Price
A GST-exclusive price is the amount before GST is added. A GST-inclusive price is the final amount after GST has been added.
For example, if the taxable value is ₹10,000 and GST is 18%, the GST amount is ₹1,800 and the GST-inclusive price is ₹11,800.
Common GST Rates
The calculator provides commonly used GST rate options such as 3%, 5%, 12%, 18% and 28%. The applicable GST rate depends on the goods or services and the relevant tax rules.
Why Use a GST Reverse Calculator?
- Find the taxable value from a GST-inclusive price.
- Calculate the GST component quickly.
- Check invoices and quoted prices.
- Avoid manual reverse GST calculations.
- Calculate prices quickly for business and everyday use.
Important Note
GST rates and tax treatment can depend on the specific goods or services and applicable rules. This calculator performs a mathematical reverse calculation based on the GST rate entered by the user and should not be treated as tax advice.
Frequently Asked Questions
What is reverse GST calculation?
Reverse GST calculation is used to find the original taxable price and GST amount from a final price that already includes GST.
How do I calculate GST from an inclusive price?
Divide the GST-inclusive amount by 100 plus the GST rate, then multiply by 100 to find the original taxable price. The GST amount is the difference between the total amount and the original price.
What is the reverse GST formula?
Original Price = Total Amount × 100 ÷ (100 + GST Rate).
Can I calculate 18% GST backwards?
Yes. Enter the GST-inclusive amount, select 18% GST and the calculator will calculate the original taxable value and GST amount.
Is the BestCalculator GST Reverse Calculator free?
Yes. The BestCalculator GST Reverse Calculator is free to use.