What is the formula for reverse GST calculation in Excel?

Asked by: Xzavier Mante II  |  Last update: July 13, 2026
Score: 5/5 (36 votes)

To calculate the reverse GST (exclusive price) in Excel, use the formula: =Total Amount / (1 + GST Rate %). For instance, if the total is ₹1,180 (cell A1) and the GST is 18%, the formula is =A1 / (1 + 18%) or =A1 / 1.18, resulting in a base price of ₹1,000.

How to reverse calculate GST in Excel?

Using Excel to Reverse Calculate GST

Here's how to do it: Use the Formula: To reverse calculate GST, the formula is =Total Price / (1 + GST rate). For example, if the total price is ₹118 with an 18% GST, the person would type =118 / 1.18' in Excel to find the original price of ₹100.

How to calculate reverse GST formula?

Reverse Charge Mechanism & Calculation

  1. Formula: Base Amount = Inclusive Amount ÷ (1 + GST Rate/100)
  2. RCM: Recipient pays GST instead of supplier.
  3. Split: For intra-state: CGST + SGST | For inter-state: IGST. Our reverse GST calculator automatically handles RCM compliance calculations.

How do you calculate GST backwards?

Subtracting GST:

To calculate how much GST is included in a price, just divide by 11. To calculate how much the price was before GST, just divide by 1.1.

How do I remove 18% GST from my total amount?

Example

  1. GST Amount = ₹1,180 - (₹1,180 / (1 + (18/100))) = ₹180.
  2. Amount Excluding GST = ₹1,180 - ₹180 = ₹1,000.

How to Make Reverse GST Calculator In Excel | Download GST Calculator for Reverse GST Calculation

28 related questions found

What is the formula for removing GST in Excel?

Excel Formula to Remove the GST amount from a Total

If you have a GST-inclusive total and need to calculate the GST-exclusive amount (i.e., remove GST), divide the Total figure by 1.15.

How to calculate GST reversal?

You can use the Cleartax reverse GST calculator to break down a total price into its base price and GST amount. Firstly, divide the GST-inclusive price by (1 + (GST rate/100)) to determine the base price. Lastly, subtract this value from the total price.

How to calculate sales tax backwards from total excel?

The Excel sales tax decalculator works by using a formula that takes the following steps:

  1. Step 1: take the total price and divide it by one plus the tax rate.
  2. Step 2: multiply the result from step one by the tax rate to get the dollars of tax.
  3. Step 3: subtract the dollars of tax from step 2 from the total price.

What is GST reversal with an example?

The reversal is calculated using the following formula. Example: If the buyer claimed ₹50,000 as ITC on a purchase, and the supplier failed to pay GST for 2 months out of 12 months, the ITC reversal would be calculated proportionately. As a result, the buyer must reverse ₹8,333 of the claimed ITC.

What is the formula for calculating GST in Excel?

Excel for GST Calculation

Calculating GST in Excel can be straightforward. Here's a basic approach: Base Price = “GST-inclusive price” * 100 / (100 + GST rate) GST Amount = MRP - Base Price.

What is the formula for subtracting GST?

How do you remove GST? The equation to subtract GST is slightly more complicated: First, take the GST-inclusive price and multiply that by 3. Then, divide the result by 23 and round that number to the nearest two decimal points.

How do you reverse GST in Excel?

How can I calculate Reverse GST using Excel? In Excel, you can calculate the base price using: =Total Price / (1 + GST Rate/100) . To get the GST amount, subtract the base price from the total price. Create columns for GST rate, total price, base price, and GST amount to automate the process.

How to do reverse calculation of GST?

So, if the final price of a good is ₹1000 and GST is charged at 18%, then the base price before GST will be: ₹1000 / (1 + 0.18) = ₹1000 / 1.18 = ₹847.46 (round off) and the total GST charged is ₹152.54.

How do you remove 18% GST from a total?

Net price = Original cost – GST

For example, if the cost of a product after GST of 18% is Rs. 118, its original cost is 118 – [100/(100 + 18%)}], which equates to Rs. 100.

How to reverse charge in GST?

Any amount payable under reverse charge shall be paid by debiting the electronic cash ledger. In other words, reverse charge liability cannot be discharged by using input tax credit. However, after discharging reverse charge liability, credit of the same can be taken by the recipient, if he is otherwise eligible.

What is reversible GST?

It allows businesses to reduce their tax liability by claiming credit for the GST paid on purchases related to their business activities. However, under certain conditions, this claimed ITC must be reversed, meaning it is added back to the output tax liability.

How to calculate reverse sales tax in Excel?

How Do I Create a Reverse Sales Tax Calculator in Excel?

  1. Open Excel and label two columns: 'Total Price' and 'Tax Rate'.
  2. Input your data, including the total prices with tax and the applicable sales tax rates.
  3. Use the formula =Total Price/(1+Tax Rate) in a new column to calculate the price before tax for each row.

How do you do a reverse calculation?

Identify what percentage of the original amount you now have. If it has been increased by a percentage, add that percentage onto 100% . If it has been decreased by a percentage, subtract that percentage from 100% . Write down the percentage and put it equal to the amount you have been given.

How do you calculate reverse tax?

Reverse Sales Tax Calculations:

  1. Price before Tax = Total Price with Tax - Sales Tax.
  2. Sales Tax Rate = Sales Tax Percent / 100.
  3. Price before Tax = Total Price with Tax / (1 + Sales Tax Rate)
  4. Sales Tax = Price before Tax x Sales Tax Rate.