GST Calculator

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Original Price (₹) GST Amount (₹) Final Price (₹)

GST Rates in India

All New GDT Rates given below in table Effective September 22 2025

Daily Essentials :

ItemsPrevious GST RateNew GST Rate
Hair Oil, Shampoo, Toothpaste, Toilet Soap Bar, Tooth Brushes, Shaving Cream18%5%
Butter, Ghee, Cheese & Dairy Spreads12%5%
Pre-packaged Namkeens, Bhujia & Mixtures12%5%
Utensils 12%5%
Feeding Bottles, Napkins for Babies & Clinical Diapers12%5%
Sewing Machines & Parts12%5%

Farmers & Agriculture :

ItemsPrevious GST RateNew GST Rate
Tractor Tyres & Parts18%5%
Tractors12%5%
Specified Bio-Pesticides, Micro- Nutrients12%5%
Drop Irrigation System & Sprinklers12%5%
Agricultural, Horticultural or Forestry Machines for Soil Preparation, Cultivation, Harvesting & Threshing12%5%

Healthcare Sector :

ItemsPrevious GST RateNew GST Rate
Individual Health & Life Insurance 18%0%
Thermometer 18%5%
Medical Grade Oxygen 12%5%
All Diagnostic Kits & Reagents12%5%
Glucometer & Test Strips12%5%
Corrective Spectacles12%5%

Education :

ItemsPrevious GST RateNew GST Rate
Maps, Charts & Globes12%0%
Pencils, Sharpeners, Crayons & Pastels12%0%
Exercise Books & Notebooks12%0%
Eraser5%0%

Automobiles :

ItemsPrevious GST RateNew GST Rate
Petrol & Petrol Hybrid, LPG, CNG Cars (not exceeding 1200 cc & 4000mm)28%18%
Diesel & Diesel Hybrid Cars (not exceeding-1500 cc & 4000mm)28%18%
3 Wheeled Vehicles28%18%
Motor Cycles (350 cc & below)28%18%
Motor Vehicles for transport of goods28%18%

Electronic Appliances :

ItemsPrevious GST RateNew GST Rate
Air Conditioners28%18%
Television (above 32″) (including LED & LCD TVS)28%18%
Monitors & Projectors28%18%
Dish Washing Machines28%18%

Products that fall under the 40% GST category :

ItemsPrevious GST RateNew GST Rate
Tobacco / pan masala28%40%
Unmanufactured tobacco, tobacco refuse (excluding tobacco leaves); Cigars, cheroots, cigarillos, cigarettes; other manufactured tobacco and substitutes including homogenised/reconstituted tobacco, extracts, essences28%40%
Products containing tobacco or nicotine substitutes intended for inhalation without combustion28%40%
Aerated waters28%40%
Caffeinated beverages28%40%
Carbonated beverages of fruit drinks / with fruit juice28%40%
Other non-alcoholic beverages18%40%
Cars above 4-meter length (beyond small car threshold: Petrol cars with engine capacity above 1200 cc and28%40%
diesel cars with engine capacity above 1500 cc28%40%
Two wheelers with 350 cc and above engine capacity28%40%
Aircraft for personal use28%40%
Smoking pipes and cigarette/cigar holders28%40%
Admission to casinos, race clubs, and sporting events like IPL28%40%
Licensing of race club bookmakers28%40%
Leasing and renting goods without operators (e.g. self-driven rented car)28%40%
Actionable claim from casino or other betting activities28%40%

What Is a GST Calculator?

A GST Calculator is a handy digital tool designed to compute the Goods and Services Tax (GST) payable for a specific period or transaction. Instead of manually wrestling with percentages and risking mathematical errors, you can simply input the net price and the applicable tax slab (like 5%, 18%, or 40%), and the tool does the heavy lifting for you. It instantly tells you the tax amount and the final price, ensuring your financial documents are precise and compliant.

Understanding the Basics of Goods and Services Tax (GST)

Before diving into the numbers, it helps to understand what we are actually calculating. GST is an indirect tax used in India on the supply of goods and services. It is a destination-based tax, meaning it is collected from the point of consumption rather than the point of origin.

Implemented to replace multiple cascading taxes (like VAT, excise duty, and service tax), GST has streamlined taxation into a single domestic structure. It applies to almost everything you buy—from your morning coffee to the car you drive.

GST Explained: A Simple Guide for Buyers and Sellers

GST works differently depending on which side of the counter you are on:

  • For Sellers/Businesses: You are responsible for collecting GST from your customers. This collected amount must be deposited with the government. However, you also get a benefit called “Input Tax Credit” (ITC). This allows you to subtract the GST you paid on your business purchases from the GST you collected from sales, meaning you only pay the difference.
  • For Buyers: You pay GST as part of the total price of goods or services. While you don’t file returns (unless you are a business entity), knowing the correct GST amount protects you from being overcharged.

How Does a GST Calculator Work?

A GST Calculator works on standard mathematical formulas pre-programmed to handle different tax slabs. It generally functions in two ways:

  1. Adding GST: It takes a base price and adds the tax percentage to find the final “billed” amount.
  2. Removing GST: It takes a total amount that already includes tax and works backward to find the original base price and the tax component.

By automating these formulas, the calculator eliminates the confusion of determining which part of your money is going towards the product and which part is going to the government.

Types of GST Calculations

When using a GST Calculator, you might notice that the tax isn’t always just one lump sum. Depending on where the transaction takes place, the calculation splits into different heads:

  • Intra-State Transactions (Within the same state): The tax is split equally between CGST (Central GST) and SGST (State GST). For example, if the rate is 18%, the calculator splits it into 9% CGST and 9% SGST.
  • Inter-State Transactions (Between two different states): The entire tax is collected as IGST (Integrated GST). In this case, an 18% tax remains a single 18% entry under IGST.

How to Use AK Shah Finance Online GST Calculator

Using the AK Shah Finance Online GST Calculator is designed to be as simple as filling out a short form. The interface is clean and gives you both a detailed table and a visual chart of your costs. Here is a step-by-step guide to getting your numbers right:

  1. Enter the Amount: In the first field labeled “Amount (₹)”, simply type in the value of the goods or services. (For example, if your product costs ₹1,000, type “1000” here).
  2. Input the GST Rate: In the “GST Rate (%)” field, enter the applicable tax percentage. Whether it is 5%, 18%, or 40%, just type the number (e.g., “18”).
  3. Select the Calculation Type: Use the dropdown menu labeled “Select Type” to choose how you want to calculate:
  • Add GST: Choose this if you have a base price and want to add tax on top of it (Exclusive).
  • Remove GST (if available in dropdown): Choose this if you have a final amount and want to find the original price (Inclusive).
  1. Click Calculate: Hit the green “Calculate” button.
  2. Analyze Your Results: The tool immediately displays a “Results” section with a clear breakdown:
  • Original Price: The base cost before tax.
  • GST Amount: Exactly how much tax is being charged.
  • Final Price: The total amount payable.
  1. Visualize the Data: Unique to our tool, a bar chart appears at the bottom. This graph gives you a quick visual comparison between the Original Price (Blue), the GST component (Orange), and the Final Price (Green), helping you instantly see how much of your money goes toward tax versus the actual product.

Formula for GST calculation

If you ever need to do the math manually without a GST Calculator, here are the formulas you need:

Method 1: Adding GST (GST Exclusive)

Use this when you have the base price and need to add tax to it.

GST Amount = (Original Cost x GST Rate) / 100

Net Price = Original Cost + GST Amount

Method 2: Removing GST (GST Inclusive)

Use this when you have the final price and need to find out what the actual cost was before tax.

GST Inclusive formula

Examples of GST Calculation for Better Understanding

Let’s look at two real-world scenarios:

Scenario A: Buying a Laptop (Exclusive)

  • Original Price: ₹50,000
  • GST Rate: 18%
  • Calculation: (50,000 x 18) / 100 = ₹9,000
  • Total Bill: ₹59,000

Scenario B: A Restaurant Bill (Inclusive)

  • Total Bill Paid: ₹1,050
  • GST Rate: 5%
  • Calculation: 1,050 – [1,050 x {100 / (100 + 5)}] = ₹50
  • Actual Food Cost: ₹1,000

Advantages of Using a GST Calculator

Why switch to a digital GST Calculator instead of using a pen and paper?

  • Zero Errors: Eliminates human calculation mistakes which can lead to compliance issues.
  • Time-Saving: Calculates complex figures in a split second.
  • Financial Planning: Helps businesses estimate costs and profit margins accurately before setting prices.

GST Inclusive vs GST Exclusive: What’s the Difference?

This is the most common point of confusion.

  • GST Exclusive: This means the price shown is the base price of the product. The tax will be added on top of this amount at checkout. (e.g., “Price: ₹100 + Taxes”).
  • GST Inclusive: This means the price shown is the final price the customer pays. The tax is already hidden inside this figure. (e.g., “MRP: ₹100 (Inclusive of all taxes)”).

Common Mistakes People Make in GST Calculation

Even experienced accountants can slip up. Avoid these pitfalls:

  • Applying the Wrong Rate: Assuming a generic 18% rate for everything (remember, essentials might be 5% while luxury items are 40%).
  • Confusing Inclusive/Exclusive: Calculating tax on top of an MRP that is already inclusive of tax.
  • Ignoring the Location: Failing to split tax into CGST/SGST for local sales, which results in incorrect invoice filing.

FAQs GST Calculator

Is a GST Calculator free to use?

Yes, AK Shah Finance GST Calculator, is completely free and available 24/7.

Can I calculate GST on a reverse charge basis?

Does the GST rate change?

Why is my manual calculation different from the calculator?

What is the difference between Nil-Rated and Exempt GST?

Does the GST Calculator handle the Reverse Charge Mechanism (RCM)?

How do I calculate GST if I am under the Composition Scheme?

What is an HSN Code, and does it affect my calculation?

Can I calculate GST on a discount?

Why does the calculator show three different tax amounts (CGST, SGST, IGST)?

How do I calculate the penalty if I pay my GST late?

Is GST calculated on the ‘Maximum Retail Price’ (MRP)?

Does the calculator work for Services (like Freelancing) too?

What happens if I calculate and pay more GST than required?

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