How to calculate 18 percentage GST in Excel formula?

Asked by: Eliza Little  |  Last update: September 17, 2026
Score: 5/5 (60 votes)

To calculate 18% GST in Excel, multiply the base amount by 0.18 (e.g., =A2*0.18) to find the tax, or multiply by 1.18 (=A2*1.18) to find the total price including GST. For inclusive prices, extract the base amount using =A2/1.18.

What is the formula for GST 18 percentage in Excel?

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. Extract GST Amount: After finding the base price, they can calculate the GST amount by subtracting the base price from the total price. For example, ₹118 - ₹100 = ₹18.

How do you calculate 18% GST?

The different slabs for GST are 5%, 12%, 18% and 28%. GST calculation can be explained by a simple illustration : If a goods or services is sold at Rs. 1,000 and the GST rate applicable is 18%, then the net price calculated will be = 1,000+ (1,000X(18/100)) = 1,000+180 = Rs. 1,180.

What is the formula for calculating GST percentage?

The GST Calculator operates based on a straightforward formula: GST Amount = (Selling Price x GST Rate) / 100. Here, the Selling Price is determined by adding the Cost Price and Profit Amount.

What is the formula for calculating GST?

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 GST work in Excel | Full Work on GST #GST Work Video Excel 25℅ GST Calculation

30 related questions found

What is 50000 including GST 18%?

Calculation: Base Price: ₹50,000. GST Amount: ₹50,000 × 18% = ₹9,000. Total Amount: ₹50,000 + ₹9,000 = ₹59,000.

What is the GST factor of 18%?

18% GST on ₹2,000 is ₹360. So, ₹2,000 includes ₹305.08 as GST. Yes, a GST calculator app helps you instantly calculate CGST, SGST, IGST, and total amounts without manual formulas.

What is the formula used in GST calculation?

What is the formula of GST? The formula for calculating GST is to multiply the net price (exclusive of GST) by 1.1 or divide the price including GST by 11 to determine the GST component.

How to calculate 18% of an amount?

To calculate 18 percent of a number, you can multiply the number by 0.18 (which is the decimal equivalent of 18%). The result will be 18% of the original number.

How to calculate -% in Excel?

To subtract a percentage in Excel, use a formula like =OriginalValue * (1 - PercentageToSubtract) or =(FinalValue - OriginalValue) / OriginalValue and format the cell as a percentage (Home > % button or Ctrl+Shift+%) to see the result as a percentage, which effectively shows the negative change or decrease. For example, to reduce 100 by 10%, use =100*(1-10%), and to find the % decrease from 100 to 90, use =(90-100)/100 then format.

How is GST 18 reverse calculated?

Example of Reverse GST Calculation

  1. Total Amount: ₹1,000.
  2. GST Rate: 18%
  3. Divisor: 1.18 (since 1 + 0.18)
  4. Base Amount: ₹847.46 (₹1,000 / 1.18)
  5. GST Amount: ₹152.54 (₹1,000 - ₹847.46)

How to make GST invoice in Excel sheet?

1. Creating GST Invoices Using Excel or Google Sheets

  1. Download a ready-made GST invoice template in Excel or open one in Google Sheets.
  2. Fill in your business name, GSTIN, and address.
  3. Add buyer details including their GSTIN if applicable.
  4. List products or services with HSN/SAC codes.

How to add 18% GST in Excel?

Apply the GST Formula Use a formula like = B2 - B2 / 1.15 for a 15% tax rate to calculate the GST amount. Adjust as needed for different tax rates. (This approach works similarly for other tax rates—just replace 1.15 with 1 + (GST Rate/100). For example, if the GST rate is 18%, use 1.18 instead.)

How to manually calculate GST?

GST is a broad-based tax of 10% on most goods, services and other items sold or consumed in Australia. To work out the cost of an item including GST, multiply the amount exclusive of GST by 1.1. To work out the GST component, divide the GST inclusive cost by 11.

How do they calculate GST?

Assuming $50.00 as the expense, multiply by 0.05 and divide by 1.05 to determine the GST, which is $2.38. (GST = $50/105 X . 05.) When invoicing for a service that is GST applicable, Accounting will include the GST in the total amount to be billed.

How do I calculate 18% GST?

For adding GST, the following formula is used. For example, if a product or service costs Rs. 100 and the GST levied on that is 18%, the GST amount will be 100 x 18% = Rs. 18. The net amount you'd have to pay would be Rs. 118.

How to claim 18% GST?

  1. Login and Navigate to ITC-01 page. Access the www.gst.gov.in URL. ...
  2. Declaration for claim of input tax credit under sub-section (1) of section 18. Select the appropriate section from the Claim made under drop-down list. ...
  3. Preview GST ITC-01. ...
  4. Submit GST ITC-01 to freeze data. ...
  5. File GST ITC-01 with DSC/ EVC.

How to calculate GST of 15%?

Calculating GST:

  1. Formula: GST Amount = GST-Inclusive Price x 3 ÷ 23.
  2. Example: If your car insurance bill is $250 then 250 x 3 ÷ 23 = $32.61.
  3. Formula: GST Amount = GST-Exclusive Amount x 15%
  4. Example: If you have a GST-exclusive amount of $100 and the GST rate is 15% then 100 x 0.15 = $15.
  5. Steps:

Which GST is 18%?

The GST rates in India have been simplified to three main slabs: 5%, 18%, and 40%. The 5% rate applies to essentials and common household goods, the 18% rate is the new standard for most consumer products and services, and the 40% rate is for luxury and "sin" goods.

How to do reverse calculation?

Finding the Reverse Percentage of a number in 3 easy steps.

Step 1) Get the percentage of the original number. If the percentage is an increase then add it to 100, if it is a decrease then subtract it from 100. Step 3) Find 100% of the original number by multiplying the result from Step 2) by 100.

Is a GST calculator free to use?

With the free GST calculator, you can calculate the tax amount in three simple steps. The tool provides you with three fields that have to be filled, and it calculates GST automatically based on what you fill in. Enter the price of the goods or services in the Amount field.