Free Online GST Calculator for India
Quickly calculate your total GST amount and see the CGST, SGST, and IGST breakdown with our free online tool
Instant & Accurate GST Calculator for India
Streamline your finances with our free and intuitive GST calculator for India. Designed for business owners, freelancers, and consumers alike, this tool makes complex GST calculation effortless. Instantly determine the gross or net price of any product or service by entering the amount and applicable rate. What makes our tool unique is its ability to provide a precise breakdown of CGST and SGST for intra-state transactions or IGST for inter-state supply, ensuring your invoices and financial records are always accurate. Whether you’re working with GST-inclusive or GST-exclusive prices, our online calculator provides a clear, instant, and reliable answer, simplifying tax compliance for everyone.
What is the Goods and Services Tax (GST)?
In simple terms, the Goods and Services Tax (GST) is a single, unified tax applied to most goods and services sold for domestic consumption in India. Before its introduction, businesses had to navigate a complex web of taxes like VAT, Service Tax, and Excise Duty. GST streamlined this into one system, making tax compliance simpler. Whether you’re dealing with GST on goods or GST on services, this destination-based tax is levied at each stage of the supply chain. Understanding its basics is the first step, and using a reliable GST calculator in India is the next step to ensure every calculation is perfect.
Understanding GST Components: CGST, SGST, and IGST
An accurate GST calculation isn’t just about the total tax; it’s about applying the correct type of GST. This depends entirely on the location of the transaction, and it’s why our tool functions as an intelligent CGST SGST calculator and an IGST calculator in one.
CGST (Central GST) & SGST (State GST): For intra-state transactions (where the supplier and buyer are in the same state), the GST is split equally into two parts. CGST goes to the Central Government, and SGST goes to the State Government. If the GST rate is 18%, 9% is applied as CGST and 9% as SGST. A precise CGST SGST calculator is crucial for local businesses to create compliant invoices.
IGST (Integrated GST): For inter-state transactions (sales between two different states), a single tax called IGST is applied. The IGST calculation formula is simple: IGST Rate = CGST Rate + SGST Rate. This integrated tax is collected by the Central Government, which then settles the state’s share.
Our GST calculator removes the guesswork by automatically applying IGST or splitting the tax into CGST and SGST based on the locations you provide.
Current GST Rate Slabs in India
To correctly calculate GST, you must apply the right tax rate. The GST Council has categorized goods and services into different slabs based on necessity and type. Using the correct GST rates is fundamental to every financial calculation.
| GST Rate Slab | Common Examples of Goods and Services |
| 0% | Essential food items like milk, fresh vegetables, and salt. |
| 5% | Sugar, tea, basic footwear, and essential household items. |
| 12% | Processed foods, mobile phones, and computers. |
| 18% | This is the most common slab, covering most services, soaps, and capital goods. |
| 28% | Luxury items like cars, air conditioners, and cement. |
Disclaimer: GST rates are subject to revision. Always verify the HSN/SAC code for your specific item to ensure the most accurate rate.
You can check and verify HSN/SAC code for specific item using this SEARCH HSN/SAC CODE
Frequently Asked Questions (FAQ)
1. What is the difference between a GST inclusive and a GST exclusive calculator?
A GST exclusive calculator adds tax to a base price. A GST inclusive calculator (or a reverse GST calculator) extracts the tax amount from a final price. Our all-in-one tool lets you switch between both methods seamlessly.
2. How do I find the correct GST rate for my product?
The GST rates are tied to an item’s HSN (Harmonized System of Nomenclature) code for goods or SAC (Services Accounting Code) for services. You can find these on the official GST portal to ensure your GST calculation is accurate.
3. Is GST calculated on the total bill or the item price?
GST is calculated on the taxable value of each individual item or service. The final bill is the sum of these values plus the corresponding GST for each, which is why a precise online GST calculator is so helpful for multi-item invoices.
4. What is the main purpose of the IGST calculation formula?
The IGST calculation formula simplifies cross-border trade within India. By levying a single tax, it ensures a smooth transfer of tax credits between states without requiring businesses to register in every state they sell to.
5. Can this GST calculator be used for services?
Yes, absolutely. This tool is designed to calculate GST on services just as effectively as it does for goods. Simply enter the value of the service and select the appropriate GST rate (usually 18%) to get an instant and accurate result.
6. Is there a faster way than using the manual GST calculation formula?
Absolutely. While knowing the manual GST calculation formula is useful, it’s slow and leaves room for human error, especially on busy days. The AllSums online GST calculator eliminates this risk and saves you valuable time. Instead of grabbing a calculator and running the numbers, just enter the amount and rate on this page to get an instant, accurate result. Why do the math when our tool can do it for you in a second?
7. How can I be sure if I should charge CGST/SGST or IGST on my invoice?
This is one of the most common points of confusion for businesses, and getting it wrong can cause compliance issues. The AllSums GST calculator is specifically designed to solve this problem. Our tool is the only one you’ll need—by simply selecting the ‘Business Location’ and ‘Place of Supply’, it automatically determines the correct tax type. It acts as an intelligent CGST SGST calculator for local sales and an IGST calculator for inter-state sales, giving you the confidence that every invoice is 100% correct.
8. What makes the AllSums GST calculator better than other basic tools?
Many basic calculators only give you a total tax amount. The AllSums GST calculator for India goes a step further by providing the features businesses actually need. Our key advantage is the intelligent CGST/SGST/IGST breakdown based on location, a feature often missing elsewhere. Furthermore, you can seamlessly switch between being a GST inclusive calculator and a GST exclusive calculator, making it a versatile all-in-one solution for every possible scenario you’ll face.
9. My client gave me a total budget. How can I use this tool to work backward?
This is a perfect use case for our reverse GST calculator feature. Manually extracting the base price from a total budget is complicated. With our tool, simply select the “GST Inclusive” option, enter the client’s total budget, and choose the correct GST rate. Our calculator will instantly show you the maximum base price you can charge while staying within their budget. It’s an invaluable feature for quoting projects and closing deals.
10. How can this calculator help me avoid common mistakes when calculating GST on goods?
The biggest mistake when calculating GST on goods is using the wrong tax rate or applying the wrong tax type (IGST vs. CGST/SGST). By using our tool, you create a system of checks and balances. After you identify the correct HSN code and GST rate for your product, plug the numbers into our calculator. It will confirm the exact tax amount and ensure the correct tax components are listed, protecting you from costly invoicing errors and potential tax notices.
11. Do I need a separate calculator for GST on services?
No, and that’s the beauty of our integrated tool. The AllSums GST calculator is designed to handle GST on services just as flawlessly as it does for goods. Since most services fall under the 18% slab, you can quickly enter your service fee, select 18%, and get an immediate, accurate tax breakdown. It’s the only bookmark you’ll need to calculate GST for every part of your business.
How to Use the AllSums GST Calculator (India)
The AllSums Goods and Services Tax Calculator is a simple yet powerful online tool designed to help users compute Goods and Services Tax (GST) in India for both tax-exclusive and tax-inclusive scenarios. It also determines whether the transaction is intra-state, inter-state, or union territory-based and accordingly calculates CGST, SGST, IGST, or UTGST.
This guide walks you through each step of using the calculator to ensure accurate results that align with your business or personal tax calculations.
Step 1: Choose Your Calculation Mode
When you open the calculator, it defaults to Tax Exclusive mode. This means you’re entering the price before the Goods and Services Tax is applied.
To switch to Tax Inclusive mode, click the “Switch to Tax Inclusive” button located just below the input fields. In this mode, you’ll enter the final amount that already includes Goods and Services Tax, and the calculator will break it down into its pre-tax and tax components.
💡 Pro Tip: The mode affects how the Goods and Services Tax is calculated, so ensure you choose the correct one based on the data you have.
Step 2: Enter the Amount
Depending on the mode you’ve selected:
- In Tax Exclusive Mode:
- Enter the base price of the product or service (excluding Goods and Services Tax) in the “Amount (₹)” field.
- In Tax Inclusive Mode:
- Enter the total price, including Goods and Services Tax, in the same “Amount (₹)” field. The calculator will reverse-engineer the original amount before tax is applied.
Ensure the value entered is numeric and does not include any symbols or currency signs
Step 3: Input the Goods and Services Tax Rate
Next, enter the applicable Goods and Services Tax rate (%) in the “Goods and Services Tax Rate (%)” field. You can input whole numbers or decimal values as needed.
For example:
- Type 5 for 5% GST
- Type 18 for 18% GST
- Type 7.5 for 7.5% GST
This flexibility enables you to calculate taxes for various categories, including essential goods, luxury items, and services, with special tax rates.
Step 4: Select Business and Supply Locations
The calculator requires two location inputs to determine the type of GST applicable:
- Business Location:
- Select the state or union territory where your business is registered from the dropdown menu.
- Supply Location:
- Choose the state or union territory where the goods or services are being supplied.
Based on these selections, the calculator identifies the nature of the transaction:
- Intra-State (Same State): CGST + SGST
- Intra-Union Territory (Same Union Territory): CGST + UTGST
- Inter-State (Different States or Union Territories): IGST
⚠️ Both fields are mandatory. If either is left unselected, an error message will appear, prompting you to choose a valid location.
Step 5: Click "Calculate"
Once all fields are correctly filled, click the “Calculate” button to generate the result.
The calculator instantly displays:
- The breakdown of taxes (CGST, SGST, UTGST, or IGST)
- Total GST amount
- Final amount (in Tax Exclusive mode)
- Original amount (in Tax Inclusive mode)
Each component is clearly labelled, making it easy to interpret the tax composition of your transaction.
Understanding the Results
In Tax Exclusive Mode:
- Original amount (₹): The amount you entered before GST
- Goods and Services Tax Amount (₹): The total tax applied based on the GST rate
- Final amount (₹): The sum of the original amount and GST
- Breakdown: CGST, SGST, UTGST, or IGST, depending on locations
In Tax Inclusive Mode:
- Original amount (₹): The price excluding GST
- Goods and Services Tax Amount (₹): Extracted from the total amount
- Breakdown: CGST, SGST, UTGST, or IGST depending on locations
Important Notes
- Ensure all inputs are valid before clicking “Calculate.” Invalid entries may cause errors or inaccurate outputs.
- If an error appears, check the highlighted messages below the calculator and correct the relevant fields.
- The calculator does not store any data or perform batch calculations—it’s meant for single-use at a time.
- Always cross-check the Goods and Services Tax rate with the latest government notifications to ensure compliance.
Conclusion
The AllSums Goods and Services Tax Calculator is a free, intuitive, and handy tool for anyone dealing with GST in India. Whether you’re a small business owner, freelancer, or student learning about taxation, this calculator simplifies complex tax computations and ensures clarity in financial transactions.