How to find original price before GST?

Asked by: Buck Kertzmann  |  Last update: June 11, 2026
Score: 5/5 (72 votes)

To find the original price before GST, divide the total price (including GST) by 1 + ( GST rate ÷ 100 ) 1 + ( G S T r a t e ÷ 1 0 0 ) . For a 10% GST rate, divide by 1.1 ( 1 + 0.10 1 + 0 . 1 0 ). For example, if the total price is $ 110 $ 1 1 0 and the GST is 10%, the calculation is $ 110 ÷ 1.1 = $ 100 $ 1 1 0 ÷ 1 . 1 = $ 1 0 0 .

How to find original price before tax formula?

What is a Sales Tax Decalculator?

  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.
  4. Pre-Tax Price = TP – [(TP / (1 + r) x r]
  5. TP = Total Price.

How to calculate the price before GST?

Subtracting GST:

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

How to do a reverse GST calculation?

Reverse GST Calculation Example

  1. Gross Amount: Rs.1,300.
  2. GST Rate: 12%
  3. Divisor: 1.12 (since 1 + 0.12)
  4. Base Amount: Rs.1,160.71 (Rs.1,300 / 1.12)
  5. Total GST Amount (Integrated tax/IGST): Rs.139.29 (Rs.1,300 - Rs.1,160.71)

What is the formula to find the original price?

To find the original amount of an amount before the percentage increase/decrease: Find the multiplier. For example, in the calculation 80 x 1∙2, the multiplier is 1∙2 for the percentage change close percentage changeThe percentage by which a value has been increased or decreased.. Divide the amount by the multiplier.

How to Find Actual Price Before GST - Goods and Services Tax

37 related questions found

How to work out the original price before VAT?

To remove Value Added Tax or to make a reverse VAT calculation the formula is the following: Net: (Amount / 120) * 100 Easy! Divide the amount by 100 + VAT% and then multiply by 100. That's the amount excluding VAT taxes (Net amount).

What is the reverse of GST?

Reverse Charge means the liability to pay tax is on the recipient of supply of goods or services instead of the supplier of such goods or services in respect of notified categories of supply. There are two type of reverse charge scenarios provided in law.

How to calculate original price after GST?

For instance, if a goods or services is sold at Rs. 1,000 and the GST rate applicable is 12%, then the net price calculated will be = 1,000+ (1,000X(12/100)) = 1,000+120 = Rs. 1,120.

What is the formula for reverse GST calculation 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 price before 9% GST?

Its is easy to calculate Singaporean GST at 9% rate:

  1. If $100 is the GST exclusive value. $100 * 0.09 = $9 GST amount.
  2. To get the GST inclusive amount, multiply the GST exclusive value by 1.09. ...
  3. To extract the GST part from a GST inclusive amount, divide the GST inclusive amount by 109 and multiply by 9.

Why do you divide by 1.1 for GST?

For example, if the GST-inclusive price is $110, dividing by 1.1 would give a GST-exclusive price of $100. Accurate subtraction of GST from a price ensures businesses report the correct GST amounts on their tax invoices and Business Activity Statements (BAS).

What is the GST calculation formula?

Let's find out. If you have a GST-inclusive sales price and wish to calculate the 15% GST component of the total price, you can either divide it by 1.15 or follow this formula: Multiply the total sales price by 3. Divide the result by 23.

How to calculate a price before GST?

To work out how much GST is included in a total price, divide the price by 11. If you want the total price before GST was added, divide by 1.1.

How to find original price after 20% off?

How do I find the original price?

  1. Divide the discount percentage by 100 to convert it to a decimal fraction: 20% / 100 = 0.2.
  2. Subtract this fraction from 1: 1 - 0.2 = 0.8 .
  3. Divide the post-sale price by this new number: $80 / 0.8 = $100 .
  4. Marvel at what you could have been paying!

How to figure out sales tax backwards?

Answer: Reverse sales ' is the process of determining the pre-' amount from a total price that includes sales '. It is calculated by dividing the total amount by (1 + sales ' rate). For example, if the total amount is $107.50 and the sales ' rate is 7.5%, the pre-' amount is calculated as $107.50 / 1.075 ≈ $100.

How to calculate GST reverse?

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 to figure original price before tax?

To calculate the price before tax (reverse sales tax), divide the total price by (1 + the tax rate as a decimal); for example, if the total is $107 and the tax rate is 7% (0.07), you'd calculate $107 / 1.07 to get the $100 pre-tax price. 

How to 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.

How to calculate GST backward?

You can quickly work out the cost of a product excluding GST by dividing the price of the product including GST by 11. This will give you the amount of GST applied to the product. You then multiply that figure by 10 to calculate the value of the product excluding GST.

How to check GST reversal?

Login to the GST Portal with valid credentials. Click the Services > Ledgers > Electronic Credit Reversal and Re- claimed Statement option. 2. Alternatively, navigate to the Dashboard page > Quick Links > Electronic Credit Reversal and Re- claimed Statement option.

How do I calculate the original price?

Step 1: Convert the percent discount to a decimal by dividing by . Step 2: Set up the equation P = ( 1 − d ) x to find the original price of the item where is the sale price, is the discount as a decimal, and is the original price of the item.

What is a reverse VAT calculator?

The calculator will take the gross amount and will estimate the net amount and VAT based on the VAT rate you input. The reason it is called a reverse calculator is that when it is given the gross (total) amount, it works backwards to deliver the net and VAT amounts.

Why do you divide by 1.2 for VAT?

Net price = Gross price ÷ (1 + VAT rate)

In the UK, the standard VAT rate is 20%, so you'd divide by 1.2. For example, say something costs £120 including VAT. To find the price excluding VAT: £120 ÷ 1.2 = £100 (which means £20 is the VAT).