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How to Calculate GST using a GST Calculator Online

Goods and Services Tax, abbreviated as GST, became operational in India on July 1, 2017, ushering in a new era by supplanting various indirect levies such as VAT and excise duty. The accurate computation of GST is pivotal for meticulous financial documentation, serving as a bulwark against potential tax penalties. The utilization of a GST calculator facilitates this calculation, offering a tool to ascertain the tax liabilities on goods and services. In this discourse, we delve into the intricacies of GST, demystify the calculation process, explore the GST percentage computation, and unravel the formulaic nuances. A comprehensive understanding awaits those who peruse until the conclusion, shedding light on the fiscal implications of GST.

Goods and Services Tax, an acronym that resonates through financial landscapes, represents a tax framework that eclipses erstwhile indirect impositions like excise duties and VAT. Its expansive reach encompasses all conceivable goods and services, albeit with exceptions for alcohol intended for human consumption and petroleum products.

GST Calculator Online

How to Calculate GST?

Understanding how to calculate GST is paramount for financial accuracy. While GST calculators are handy tools, having a grasp of the formula adds a layer of comprehension. The GST calculation formula is straightforward:

GST = (Original cost * GST rate) / 100

Here, the original cost signifies the cost of goods or services before the addition of GST, and the GST rate corresponds to the specific rate applicable to the item based on its position in the tax slab.

For a practical illustration, let’s consider a product with an original cost of Rs. 100 and a GST rate of 18%. Applying the formula yields a GST amount of Rs. 18, resulting in a total cost of Rs. 118.

GST Percentage Calculation

Determining the GST percentage involves understanding the GST amount and the original cost of the product or service. The formula for GST percentage is:

GST percentage = (GST amount / Original cost) * 100

For instance, if the original cost is Rs. 100 and the GST amount is Rs. 18, the GST percentage would be 18%, indicating the applicable GST rate.

Calculating Final Price with GST

For those preferring manual calculations without a GST calculator, determining the final price involves adding the original cost and the GST amount:

Final price = Original Cost + GST amount

Taking an example where the original cost is Rs. 1000 and the GST rate is 18%, the final price would be Rs. 1180.

Reverting to Original Cost: GST Removal Formula

To deduce the original cost before the addition of GST, use the formula:

Original Cost = Final price / (1 + GST rate/100)

Suppose the final price is Rs. 1200 with a 20% GST rate; the original cost would be Rs. 1000.

GST Calculator

A GST calculator is a useful tool that can help you calculate the GST amount or the final price of a product or service, which includes the GST. It helps you to calculate these entities accurately and swiftly. This saves you any scope of error and a lot of time. 

  • Know the original cost of the product or the service. 
  • Find out the applicable GST rate for this product or service. GST rates are different for different products and services based on the type of product it is. These details can be found on GST portal online.
  • Depending on which calculator you are using, you can now click on the option which reads, “GST Amount” or “Final Price Including GST”. 
  • Enter the original cost of the product or service you are calculating the GST for. 
  • Enter the GST rate which applies to the said product or service. 
  • Enter the required details and press the calculate button. The GST calculator will display the final price with the GST already added to it. 
  • Always recheck the result to make sure it is correct.

FAQs on GST Calculations

What factors influence GST calculation?

The calculation of GST is contingent upon several factors:

  1. GST Rate: Varied rates, spanning from 0% to 28%, apply to different products.
  2. Place of Supply: The location of the transaction, whether within the same state or across states, affects the GST amount.
  3. Input Tax Credit (ITC): Companies can claim credit for GST paid on specific goods and services.
  4. Other Taxes: Additional taxes like excise duty and customs contribute to the overall GST calculation.
  5. Discounts: If discounts are applied to the original price, GST is computed based on the discounted amount.

What types of GST exist in India?

India operates under three distinct types of GST:

  1. CGST (Central Goods and Services Tax): Levied by the Central Government on goods and services within the same state.
  2. SGST (State Goods and Services Tax): Imposed by State Governments on goods and services within their jurisdiction.
  3. IGST (Integrated Goods and Services Tax): Applicable to the movement of goods between states.

These components introduce variability in the amount of GST payable.

What is the GST rate structure in India?

The GST rate structure in India is categorized as follows:

  1. 5%: Applicable to items such as packaged foods, clothing below Rs. 1000, and books.
  2. 12%: Imposed on processed food, mobile phones, furniture, and textiles.
  3. 18%: Levied on air conditioners, IT services, financial services, hotels, and restaurants.
  4. 28%: Reserved for services like cars, luxury items, and aerated drinks.

Can a GST Calculator be used for multiple products or services simultaneously?

Indeed, a GST calculator accommodates the calculation of GST for multiple products or services concurrently. By inputting details for each item, including prices and applicable GST rates, the calculator computes the GST amount for each, presenting a consolidated total. This feature streamlines the process, ensuring both efficiency and accuracy in GST calculations.

Shitanshu Kapadia
Shitanshu Kapadia
Hi, I am Shitanshu founder of moneyexcel.com. I am engaged in blogging & Digital Marketing for 10 years. The purpose of this blog is to share my experience, knowledge and help people in managing money. Please note that the views expressed on this Blog are clarifications meant for reference and guidance of the readers to explore further on the topics. These should not be construed as investment , tax, financial advice or legal opinion. Please consult a qualified financial planner and do your own due diligence before making any investment decision.