GST (Goods and Services Tax) is an indirect tax levied on the supply of goods and services in India. It replaced multiple indirect taxes like VAT, service tax, excise duty, etc., with a unified tax system.

What are CGST, SGST, and IGST?

CGST (Central GST) and SGST (State GST) are levied on intra-state transactions, each being half of the GST rate. IGST (Integrated GST) is levied on inter-state transactions at the full GST rate and is collected by the central government.

What are the current GST rates in India?

Common GST rates in India: 0% (essential items), 5% (medicines, packaged food), 12% (processed foods, computers), 18% (most goods and services), and 28% (luxury items, sin goods). Some items are exempt from GST.

Who needs to pay GST?

Businesses with annual turnover exceeding ₹20 lakh (₹10 lakh for special category states) must register for GST and pay GST on their supplies. GST is ultimately borne by the end consumer, but businesses collect and remit it to the government.

GSTIN (GST Identification Number) is a 15-digit unique identification number assigned to every business registered under GST. It is used for all GST-related transactions, filing returns, and claiming input tax credit.

Can I claim GST input credit?

Yes, registered businesses can claim Input Tax Credit (ITC) for GST paid on purchases used for business purposes. ITC can be set off against output GST liability, reducing the net GST payable. Proper invoices and GST registration are required.

GST Calculator

Calculate GST amount instantly. Supports CGST, SGST, and IGST calculations.

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Intra-state (CGST + SGST) Inter-state (IGST)

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What is a GST Calculator?

A GST (Goods and Services Tax) calculator is a tool that helps you calculate the GST amount on a product or service. It computes CGST (Central GST), SGST (State GST), and IGST (Integrated GST) based on the transaction type and GST rate. GST was introduced in India on July 1, 2017, replacing multiple indirect taxes and creating a unified tax system across the country.

Our GST calculator helps businesses, consumers, and professionals quickly determine the GST amount, total price including tax, and breakdown of CGST/SGST or IGST. It's essential for invoicing, pricing decisions, and understanding the tax component in transactions.

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How to Calculate GST?

GST calculation depends on whether the transaction is intra-state or inter-state:

Intra-state (Same State): CGST + SGST (each half of GST rate)
Inter-state (Different States): IGST (full GST rate)

GST Amount = (Base Amount × GST Rate) / 100
Total Amount = Base Amount + GST Amount

For example, on ₹1,000 with 18% GST: GST = ₹180, Total = ₹1,180. If intra-state: CGST = ₹90, SGST = ₹90. If inter-state: IGST = ₹180.

GST Rates in India

India has four main GST rate slabs:

5%: Essential items like food grains, medicines, transport services
12%: Processed foods, computers, mobile phones, restaurant services
18%: Most goods and services including soaps, toothpaste, financial services
28%: Luxury items like cars, ACs, cigarettes, aerated drinks

Some items like fresh vegetables, unprocessed food, and certain services are exempt from GST (0%).

CGST, SGST, and IGST Explained

CGST (Central GST): Collected by the Central Government on intra-state transactions. Goes to the central government's revenue.

SGST (State GST): Collected by the State Government on intra-state transactions. Goes to the state government's revenue.

IGST (Integrated GST): Collected by the Central Government on inter-state transactions. Shared between central and destination state governments.

Example: On ₹1,000 with 18% GST intra-state: CGST = ₹90, SGST = ₹90. Same transaction inter-state: IGST = ₹180.

GST Calculator Formula

The GST calculation formula is straightforward:

GST Amount = (Base Price × GST Rate) / 100
Total Price = Base Price + GST Amount

For reverse calculation (when total price is known):

Base Price = Total Price / (1 + GST Rate/100)
GST Amount = Total Price - Base Price

GST Calculator Online Free

Our free GST calculator offers:

Instant GST calculations for all rate slabs (5%, 12%, 18%, 28%)
Automatic CGST/SGST/IGST breakdown
Support for both intra-state and inter-state transactions
No registration or payment required
Mobile-friendly interface
Accurate calculations for invoicing and business use

When to Use CGST+SGST vs IGST?

Use CGST + SGST when:

Seller and buyer are in the same state
Goods/services are supplied within the same state
Example: Mumbai seller to Mumbai buyer

Use IGST when:

Seller and buyer are in different states
Goods/services are supplied across state borders
Example: Delhi seller to Mumbai buyer

GST on Services

Most services attract GST at standard rates:

Restaurant Services: 5% (non-AC) or 18% (AC restaurants)
Professional Services: 18% (legal, consulting, accounting)
Telecom Services: 18%
Banking Services: 18%
Transport Services: 5% to 18% depending on type
Healthcare Services: Mostly exempt (0%)

Benefits of Using GST Calculator

Accuracy: Eliminates manual calculation errors
Time Saving: Instant results for quick pricing decisions
Compliance: Ensures correct GST calculation for invoicing
Transparency: Shows clear breakdown of tax components
Business Planning: Helps in pricing and cost analysis
Customer Communication: Clear tax breakdown for customers

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