๐งพ GST Calculator
Free Online GST Calculator โ Add or Remove GST Instantly
Our free online GST Calculator is an essential tool for business owners, accountants, freelancers, and consumers in India. Whether you need to add GST to a price (exclusive GST) or extract GST from a GST-inclusive amount (inclusive GST), this calculator does it in seconds.
What is GST?
Goods and Services Tax (GST) is India's unified indirect tax system that replaced a complex array of central and state taxes in 2017. It is applied to the supply of goods and services across India. GST has four main slabs: 5%, 12%, 18%, and 28%, with different products and services taxed at different rates.
How to Add GST (Exclusive GST Calculation)
If you have the base price (ex-GST price) and want to find the total including GST:
GST Amount = Base Price ร GST Rate / 100
Total Price = Base Price + GST Amount
Example: Base price = โน1,000, GST = 18% โ GST = โน180 โ Total = โน1,180
How to Remove GST (Inclusive GST Calculation)
If you have the GST-inclusive price and want to find the original base price:
Original Price = Total Price ร 100 / (100 + GST Rate)
GST Amount = Total Price - Original Price
Example: GST-inclusive price = โน1,180, GST = 18% โ Original = โน1,000 โ GST = โน180
CGST & SGST Breakdown
Under the GST system in India, for intra-state transactions, the GST is split equally between CGST (Central GST) and SGST (State GST). Our calculator shows you this breakdown for easy invoice preparation. For inter-state transactions, the full GST is charged as IGST.
Who Uses a GST Calculator?
- Business owners preparing GST invoices
- Customers wanting to know the ex-GST price of a product
- Accountants and finance professionals for GST reconciliation
- Shoppers calculating true cost of items with GST
- Exporters and importers for custom duty calculations
Related tools: Percentage Calculator, Profit Margin Calculator, EMI Calculator.
Frequently Asked Questions
GST exclusive (Add GST) means your base price doesn't include GST โ the tax is added on top. GST inclusive (Remove GST) means your price already includes GST โ you want to find the original pre-tax price.
India's GST has four main slabs: 5% (essential goods like food items), 12% (standard goods like processed food, computers), 18% (most services, electronics, restaurants), and 28% (luxury goods, tobacco, automobiles). Some items are exempt (0%).
CGST (Central GST) goes to the central government, and SGST (State GST) goes to the state government. For intra-state supplies, total GST = CGST + SGST. For inter-state supplies, IGST (Integrated GST) is charged instead.
Yes! Select "Custom %" in the GST Rate dropdown and enter any custom rate. This is useful for special GST categories or compound rates.