GST Calculator
Results
| Original Price (₹) | GST Amount (₹) | Final Price (₹) |
|---|
GST Rates in India
All New GDT Rates given below in table Effective September 22 2025
Daily Essentials :
| Items | Previous GST Rate | New GST Rate |
|---|---|---|
| Hair Oil, Shampoo, Toothpaste, Toilet Soap Bar, Tooth Brushes, Shaving Cream | 18% | 5% |
| Butter, Ghee, Cheese & Dairy Spreads | 12% | 5% |
| Pre-packaged Namkeens, Bhujia & Mixtures | 12% | 5% |
| Utensils | 12% | 5% |
| Feeding Bottles, Napkins for Babies & Clinical Diapers | 12% | 5% |
| Sewing Machines & Parts | 12% | 5% |
Farmers & Agriculture :
| Items | Previous GST Rate | New GST Rate |
|---|---|---|
| Tractor Tyres & Parts | 18% | 5% |
| Tractors | 12% | 5% |
| Specified Bio-Pesticides, Micro- Nutrients | 12% | 5% |
| Drop Irrigation System & Sprinklers | 12% | 5% |
| Agricultural, Horticultural or Forestry Machines for Soil Preparation, Cultivation, Harvesting & Threshing | 12% | 5% |
Healthcare Sector :
| Items | Previous GST Rate | New GST Rate |
|---|---|---|
| Individual Health & Life Insurance | 18% | 0% |
| Thermometer | 18% | 5% |
| Medical Grade Oxygen | 12% | 5% |
| All Diagnostic Kits & Reagents | 12% | 5% |
| Glucometer & Test Strips | 12% | 5% |
| Corrective Spectacles | 12% | 5% |
Education :
| Items | Previous GST Rate | New GST Rate |
|---|---|---|
| Maps, Charts & Globes | 12% | 0% |
| Pencils, Sharpeners, Crayons & Pastels | 12% | 0% |
| Exercise Books & Notebooks | 12% | 0% |
| Eraser | 5% | 0% |
Automobiles :
| Items | Previous GST Rate | New 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 Vehicles | 28% | 18% |
| Motor Cycles (350 cc & below) | 28% | 18% |
| Motor Vehicles for transport of goods | 28% | 18% |
Electronic Appliances :
| Items | Previous GST Rate | New GST Rate |
|---|---|---|
| Air Conditioners | 28% | 18% |
| Television (above 32″) (including LED & LCD TVS) | 28% | 18% |
| Monitors & Projectors | 28% | 18% |
| Dish Washing Machines | 28% | 18% |
Products that fall under the 40% GST category :
| Items | Previous GST Rate | New GST Rate |
|---|---|---|
| Tobacco / pan masala | 28% | 40% |
| Unmanufactured tobacco, tobacco refuse (excluding tobacco leaves); Cigars, cheroots, cigarillos, cigarettes; other manufactured tobacco and substitutes including homogenised/reconstituted tobacco, extracts, essences | 28% | 40% |
| Products containing tobacco or nicotine substitutes intended for inhalation without combustion | 28% | 40% |
| Aerated waters | 28% | 40% |
| Caffeinated beverages | 28% | 40% |
| Carbonated beverages of fruit drinks / with fruit juice | 28% | 40% |
| Other non-alcoholic beverages | 18% | 40% |
| Cars above 4-meter length (beyond small car threshold: Petrol cars with engine capacity above 1200 cc and | 28% | 40% |
| diesel cars with engine capacity above 1500 cc | 28% | 40% |
| Two wheelers with 350 cc and above engine capacity | 28% | 40% |
| Aircraft for personal use | 28% | 40% |
| Smoking pipes and cigarette/cigar holders | 28% | 40% |
| Admission to casinos, race clubs, and sporting events like IPL | 28% | 40% |
| Licensing of race club bookmakers | 28% | 40% |
| Leasing and renting goods without operators (e.g. self-driven rented car) | 28% | 40% |
| Actionable claim from casino or other betting activities | 28% | 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:
- Adding GST: It takes a base price and adds the tax percentage to find the final “billed” amount.
- 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:
- 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).
- 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”).
- 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).
- Click Calculate: Hit the green “Calculate” button.
- 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.
- 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.

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?
Yes, the “Inclusive” calculation method essentially helps you find the reverse charge value by extracting the tax from the total.
Does the GST rate change?
Yes, the GST Council periodically revises rates. It is important to ensure you are using the current rate for your specific product category.
Why is my manual calculation different from the calculator?
This often happens due to rounding off decimals. A digital GST Calculator is usually more precise with decimal points than manual estimation.
What is the difference between Nil-Rated and Exempt GST?
Many people confuse these two. Nil-Rated goods have a tax rate of 0% (like grains or salt), but you can still claim Input Tax Credit (ITC) on the raw materials used to make them. Exempt goods, on the other hand, are completely outside the tax net (like fresh milk), and you generally cannot claim any ITC for them.
Does the GST Calculator handle the Reverse Charge Mechanism (RCM)?
Most basic calculators are designed for “Forward Charge” (seller pays tax). However, for RCM—where the buyer pays the tax—you can still use the calculator. simply enter the value of the goods and calculate the tax amount. Instead of paying this tax to the seller, you (the buyer) must deposit it directly with the government.
How do I calculate GST if I am under the Composition Scheme?
If you are a small business opted into the Composition Scheme, you cannot use the standard 5%, or 18% slabs. Instead, you pay a flat turnover rate (usually 1% for traders/manufacturers and 5% for restaurants). You cannot collect this tax from customers, so you must calculate it on your total turnover using a simple percentage.
What is an HSN Code, and does it affect my calculation?
HSN (Harmonized System of Nomenclature) is a code used to classify goods. It is critical for calculation because the HSN code determines which tax slab (rate) applies to your product. If you use the wrong HSN code, you might calculate 12% tax when the government actually requires 18%, leading to penalties.
Can I calculate GST on a discount?
Yes, but the timing matters.
- Pre-supply discount: If the discount is given before or at the time of sale, GST is calculated on the discounted price (Net Price).
- Post-supply discount: If the discount is given after the sale, GST is usually already paid on the full price. You may need to issue a credit note to adjust the tax liability later.
Why does the calculator show three different tax amounts (CGST, SGST, IGST)?
This is to help you file your returns correctly.
- If you are selling within your state, use the CGST and SGST figures (they split the tax 50-50)..
- If you are selling to a different state, ignore the first two and only use the IGST figure (which is the full tax amount).
How do I calculate the penalty if I pay my GST late?
If you miss the deadline, you have to pay interest on the unpaid tax amount. The standard interest rate is usually 18% per annum.
- Formula: (Tax Liability x 18% x Number of Days Delayed) / 365.
- Note: You cannot use Input Tax Credit to pay this interest; it must be paid in cash.
Is GST calculated on the ‘Maximum Retail Price’ (MRP)?
No, GST is never added on top of the MRP. The MRP is the maximum price a product can be sold for, and by law, it must include all taxes. If a shopkeeper tries to add GST on top of the printed MRP, it is illegal.
Does the calculator work for Services (like Freelancing) too?
Absolutely. In GST terms, “Supply” covers both goods and services. Whether you are selling a laptop (Good) or offering consulting services (Service), the calculation logic remains exactly the same. You just need to know the correct SAC code (Service Accounting Code) and rate (usually 18% for most services).
What happens if I calculate and pay more GST than required?
If you accidentally over-calculate and overpay, you can claim a refund from the government. However, the process can be lengthy. It is always better to use a reliable GST Calculator to double-check your figures before filing your GSTR-1 or GSTR-3B returns.