GST Calculator

Calculate GST amount for inclusive and exclusive prices. Supports CGST, SGST, and IGST calculations for all GST rates (5%, 12%, 18%, 28%).

GST Calculator

About This Calculator

Goods and Services Tax (GST) is an indirect tax levied on the supply of goods and services in India. Our GST calculator helps you calculate the exact GST amount for both inclusive and exclusive pricing.

The calculator supports all GST rates and automatically determines CGST, SGST, or IGST based on whether the transaction is intrastate or interstate.

GST Rates in India:

  • 0%: Essential items like food grains, milk, etc.
  • 5%: Essential items like sugar, tea, coffee, etc.
  • 12%: Items like computers, processed food, etc.
  • 18%: Most goods and services (standard rate)
  • 28%: Luxury items like cars, tobacco, etc.

Types of GST:

  • CGST: Central GST (collected by Central Government)
  • SGST: State GST (collected by State Government)
  • IGST: Integrated GST (for interstate transactions)

Transaction Types:

  • Intrastate: Within the same state - CGST + SGST applies
  • Interstate: Between different states - Only IGST applies

Features:

  • GST inclusive and exclusive calculations
  • Automatic CGST/SGST/IGST breakdown
  • Support for all GST rates
  • Intrastate and interstate transaction support
  • Shareable calculation links

Frequently Asked Questions

What is GST?

GST (Goods and Services Tax) is a comprehensive indirect tax levied on the supply of goods and services in India. It replaced multiple taxes like VAT, Service Tax, Excise Duty, etc. GST is a destination-based tax, meaning it is collected by the state where the goods/services are consumed rather than where they are produced.

How to calculate GST amount?

For GST exclusive prices: GST Amount = (Original Cost × GST Rate) / 100. Final Price = Original Cost + GST Amount. For GST inclusive prices: GST Amount = (Final Price × GST Rate) / (100 + GST Rate). Our calculator automatically handles both scenarios and provides CGST/SGST or IGST breakdown based on transaction type.

What are the different GST rates in India?

GST rates in India are categorized into five slabs: 0% (essential items like fresh food, milk), 5% (basic necessities like sugar, tea, edible oil), 12% (processed goods like cheese, ayurvedic medicines), 18% (standard rate for most goods and services), and 28% (luxury and sin goods like cars, tobacco, aerated drinks). Some items are exempt from GST.

What is the difference between CGST, SGST, and IGST?

CGST (Central GST) and SGST (State GST) are levied on intrastate transactions (within the same state), with revenue shared equally between central and state governments. IGST (Integrated GST) is levied on interstate transactions (between different states) and is collected by the central government, then apportioned to the destination state.

How do I calculate GST from total amount?

To extract GST from a total inclusive amount: GST Amount = (Total Amount × GST Rate) / (100 + GST Rate). For example, if total amount is ₹1,180 and GST rate is 18%, then GST = (1180 × 18) / 118 = ₹180. The original amount before GST would be ₹1,000. Use our GST inclusive calculator for instant results.

What is GSTIN?

GSTIN (Goods and Services Tax Identification Number) is a 15-digit unique identification number assigned to every GST registered taxpayer in India. The first 2 digits represent the state code, next 10 digits are the PAN number, 13th digit indicates entity number, 14th is 'Z' by default, and 15th is a check code. GSTIN is mandatory for businesses with turnover above the threshold limit.

Who needs to register for GST?

Businesses with annual turnover exceeding ₹40 lakh (₹20 lakh for special category states) for goods, and ₹20 lakh (₹10 lakh for special category states) for services must register for GST. Additionally, e-commerce operators, casual taxable persons, non-resident taxable persons, and those paying tax under reverse charge mechanism must also register regardless of turnover.

How to remove GST from amount?

To remove GST from an inclusive amount and get the base price: Base Price = GST Inclusive Price × 100 / (100 + GST Rate). For example, if price is ₹1,180 inclusive of 18% GST, then base price = 1180 × 100 / 118 = ₹1,000. The GST amount would be ₹180. Our GST calculator has an inclusive mode that does this calculation automatically.

What is input tax credit in GST?

Input Tax Credit (ITC) allows businesses to deduct the GST paid on purchases (inputs) from the GST collected on sales (output). This prevents double taxation and ensures tax is paid only on value addition. To claim ITC, the supplier must have paid GST to the government, and you must possess a valid tax invoice. ITC is a key feature that makes GST a value-added tax.

When was GST implemented in India?

GST was implemented in India on July 1, 2017, through the 101st Constitutional Amendment Act. It replaced the complex indirect tax structure with a single unified tax, creating "One Nation, One Tax." The GST Council, chaired by the Union Finance Minister, decides on GST rates, rules, and regulations. GST is considered one of the biggest tax reforms in independent India.