GST is a multi-stage destination tax. Standard Indian GST rates are 5%, 12%, 18%, and 28%. CGST goes to the central government, while SGST goes to the state government.
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GST Calculator
Calculate net price, CGST, SGST, IGST, and gross price using standard tax slabs.
GST Calculator
Tax breakdown
Total GST Tax Liability₹0
Net Base Price₹0
Total Gross Price₹0
CGST (Central)₹0
SGST (State)₹0
What is a GST Calculator?
Calculate GST on any amount instantly. Enter your price and GST rate to see the tax amount and total price with CGST, SGST and IGST breakdown.
How to Use This Calculator
- Enter your primary figure—such as your gross salary, product price, or target investment amount—into the base input field.
- Adjust the sliders or type numbers directly into the fields to specify parameters like interest rates and tenure duration.
- Enter any additional applicable values, such as tax-saving deductions, extra fees, or custom contribution percentages.
- Review the instant breakdown results, evaluate the visual compounding charts, and download the full breakdown as a PDF report.
Example Calculation: Income Tax Calculation Example
This table shows a realistic example calculation based on standard parameters. Enter your custom numbers in the sliders above to compare results.
| Parameter | Sample Value |
|---|---|
| Gross Annual Salary | ₹15,00,000 |
| Standard Deduction | ₹75,000 (New Regime) |
| Taxable Income Base | ₹14,25,000 |
| Tax Due (New Regime Slabs) | ₹1,30,000 |
| 4% Health & Education Cess | ₹5,200 |
Goods and Services Tax (GST) Calculations
Mathematical Formula:
GST Amt (Exclusive) = Price * GST% / 100 | GST Amt (Inclusive) = Price - [Price / (1 + GST%/100)]
What is a GST Calculator?
A Goods and Services Tax (GST) calculator is a digital utility designed to compute the tax amount on any item or transaction according to standard GST slabs, such as 5%, 12%, 18%, and 28%. In modern economies, business transactions require accurate tax tracking for bookkeeping and regulatory compliance. This calculator supports both GST addition (calculating the final price including tax) and GST removal (deducting the tax from a gross price to find the base value). It provides an instant breakdown of tax types, showing Central GST (CGST), State GST (SGST), and Integrated GST (IGST) details.
How to Use This GST Calculator
- Select the calculation type: choose "Add GST" to compute the tax on a base price, or "Remove GST" to calculate the pre-tax price from a gross total.
- Input the transaction value in the amount field.
- Choose the applicable GST tax rate percentage slab (typically 5%, 12%, 18%, or 28%).
- The calculator instantly displays the net base price, the total GST amount, and the gross price.
- Check the detailed breakdown below the results to view the exact split for CGST, SGST, and IGST based on transaction location.
GST Formulas & Worked Example
To Add GST:
GST Amount = Base Price * (GST% / 100)
Total Price = Base Price + GST Amount
Total Price = Base Price + GST Amount
To Remove GST:
Base Price = Total Price * (100 / (100 + GST%))
GST Amount = Total Price - Base Price
GST Amount = Total Price - Base Price
Worked Example (Add GST): If you purchase a service with a base price of ₹10,000 under the 18% GST slab:
- Base Price = ₹10,000
- GST Amount = 10,000 * (18 / 100) = ₹1,800
- Total Price = 10,000 + 1,800 = ₹11,800
For transactions within the same state, this is split into ₹900 CGST and ₹900 SGST.
GST Addition Examples at 18% Slab Rate
A standard breakdown of intra-state calculations showing the CGST and SGST splits:
| Base Price | GST Amount (18%) | CGST / SGST Split | Total Price |
|---|---|---|---|
| ₹1,000 | ₹180 | ₹90 / ₹90 | ₹1,180 |
| ₹5,000 | ₹900 | ₹450 / ₹450 | ₹5,900 |
| ₹10,000 | ₹1,800 | ₹900 / ₹900 | ₹11,800 |
| ₹50,000 | ₹9,000 | ₹4,500 / ₹4,500 | ₹59,000 |
When Should You Use a GST Calculator?
You should use this GST calculator whenever you need to compute invoicing details, estimate purchase costs, or file business taxes. It is highly beneficial for shopkeepers, freelancers, manufacturers, and buyers who need to verify tax calculations instantly. Whether you are generating invoices for clients and need to add GST, or auditing invoices to extract the pre-tax base value and verify if you were billed correctly, this calculator provides compliant calculations in seconds.
Frequently Asked Questions (FAQ)
What is GST and what are the different components?
Goods and Services Tax (GST) is a comprehensive, multi-stage, destination-based indirect tax levied on the manufacture, sale, and consumption of goods and services. It replaced multiple indirect taxes in India, such as VAT, Service Tax, Excise Duty, and Luxury Tax. GST has three main components: Central GST (CGST) and State GST (SGST), which are collected on transactions occurring within a single state (intra-state trade); and Integrated GST (IGST), which is levied on transactions between different states (inter-state trade) and imports. The revenue of CGST goes to the central government, SGST goes to the state government, and IGST is shared between the center and the consumer state.
How is CGST, SGST, and IGST split calculated?
The split between CGST, SGST, and IGST depends entirely on the location of the seller and the buyer. When goods or services are sold within the same state (intra-state commerce), the total GST rate is divided equally between the federal and state governments. For instance, if an item is taxed under the 18% slab, 9% is calculated as CGST and 9% is calculated as SGST. If the transaction occurs across state lines (inter-state commerce), the full 18% is applied as IGST. The total tax paid by the consumer remains identical in both scenarios; only the administrative distribution changes.
What is the difference between tax addition and tax removal?
Tax addition is the process of calculating the GST amount on a net base price and adding it to find the final buyer cost. This is the standard method used when selling goods or services. Tax removal, or backward calculation, is used when you know the final, all-inclusive price and need to extract the original pre-tax value and the tax portion. This is common when businesses buy retail items that include taxes, or when budgeting from a fixed total expenditure. The math differs because the tax percentage is calculated against the inflated gross value.
What are the active GST tax slab rates in India?
The Indian GST council has categorized all goods and services into five primary tax slabs: 0% (exempt goods like fresh food and milk), 5% (basic necessities like sugar and medicines), 12% (processed foods and standard items), 18% (services, capital goods, and electronic items), and 28% (luxury items and demerit goods like cars and tobacco). Additionally, some luxury goods attract a compensation cess on top of the 28% rate. The classification of goods and services into these slabs is reviewed periodically by the GST Council.
What is input tax credit (ITC) under the GST system?
Input Tax Credit (ITC) is one of the most critical features of the GST framework. It allows businesses to deduct the tax they have already paid on purchases (inputs) from the tax they collect on sales (outputs). For example, if a manufacturer pays ₹1,000 GST on raw materials and collects ₹1,500 GST on the final product sold to a distributor, they only need to deposit the difference of ₹500 (₹1,500 minus ₹1,000) with the government. This eliminates the cascading effect of double taxation, lowering the overall cost of production and trade.
Is GST mandatory for all businesses and freelancers?
In India, GST registration is mandatory for businesses and service providers whose annual turnover exceeds specific thresholds. For service providers and freelancers, the current turnover limit is ₹20 Lakhs (₹10 Lakhs for special category northeastern states). For goods suppliers, the threshold is ₹40 Lakhs. Additionally, any business engaged in inter-state trade or e-commerce sales must register for GST regardless of their annual turnover. Registering for GST allows businesses to legally collect tax, claim Input Tax Credits on their business expenses, and build credibility with corporate clients.