Home/Calculators/GST Calculator•Last updated: June 13, 2026

GST Calculator India

All Slabs Supported

Calculate GST instantly. Add GST to base price or extract GST from inclusive amount. Get CGST, SGST, and IGST breakdown for all tax slabs.

₹10.0K
Base Price
₹1,800
Total GST
₹11.8K
Total Amount
18%
GST Rate

Enter Amount

₹

10 Thousand

Enter base price (excluding GST)

GST Rate

%(For luxury items, tobacco, etc.)

Transaction Type

GST Calculation

Base Price
₹10,000.00
Total Amount
₹11,800.00
GST Breakdown
CGST@ 9%
₹900.00
SGST@ 9%
₹900.00
Total GST₹1,800.00
Amount with GST₹11,800.00
GST of ₹1,800.00 added to ₹10,000.00

GST Slab Rates

Exempt0%

Fresh vegetables, fruits, milk, eggs, unbranded cereals

5% Slab5%

Packaged food, tea, coffee, edible oil, footwear under ₹1000

12% Slab12%

Processed food, computers, mobiles, business class air tickets

18% Slab18%

Most goods & services, electronics, restaurants, IT services

28% Slab28%

Luxury items, cars, AC, washing machine, aerated drinks

What is GST?

Goods and Services Tax (GST) is a comprehensive, multi-stage, destination-based indirect tax that replaced multiple cascading taxes levied by the Central and State governments in India. It was implemented on July 1, 2017.

GST is levied on the supply of goods and services. It consolidates various indirect taxes like VAT, service tax, excise duty, and others into a single, unified tax structure.

CGST vs SGST vs IGST

CGST

Central GST - Collected by Central Government on intra-state supply. It is half of the total GST rate.

SGST

State GST - Collected by State Government on intra-state supply. It is the other half of the total GST rate.

IGST

Integrated GST - Collected by Central Government on inter-state supply. It equals the full GST rate.

GST Calculation Formulas

Add GST to Base Price

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

Example: Base Rs 1000 @ 18% GST = Rs 1000 + Rs 180 = Rs 1180

Extract GST from Inclusive Price

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

Example: MRP Rs 1180 @ 18% GST = Rs 1000 base + Rs 180 GST

Frequently Asked Questions

What is GST and when was it introduced in India?
GST (Goods and Services Tax) is a comprehensive indirect tax on the supply of goods and services in India. It was introduced on July 1, 2017, replacing multiple indirect taxes like VAT, service tax, excise duty, and others. GST follows a destination-based taxation principle, meaning tax is collected by the state where goods/services are consumed.
What are the different GST slabs in India?
India has five GST slabs: 0% (essential items like fresh food, milk), 5% (common use items, economy hotels), 12% (processed food, mobile phones), 18% (most services, restaurants, electronics), and 28% (luxury items, cars, tobacco). Additionally, some items like petrol, alcohol, and electricity are outside GST and governed by state taxes.
What is the difference between CGST, SGST, and IGST?
CGST (Central GST) and SGST (State GST) are levied on intra-state transactions, with each being half of the total GST rate. IGST (Integrated GST) is levied on inter-state transactions and equals the full GST rate. For example, on an 18% GST item: intra-state = 9% CGST + 9% SGST, inter-state = 18% IGST.
How do I calculate GST on a product's MRP?
MRP is usually GST-inclusive. To extract GST: Base Price = MRP × 100 / (100 + GST Rate). For example, if MRP is ₹1,180 and GST is 18%: Base Price = 1180 × 100 / 118 = ₹1,000, and GST = ₹180. Use the 'GST Inclusive' option in our calculator for this.
What is Input Tax Credit (ITC) and who can claim it?
Input Tax Credit allows businesses registered under GST to claim credit for GST paid on purchases against GST collected on sales. For example, if you paid ₹18,000 GST on purchases and collected ₹25,000 GST on sales, you only pay ₹7,000 to the government. Only registered businesses can claim ITC, not end consumers.
What is GST Cess and on which products is it applied?
GST Cess is an additional tax over and above the GST rate, collected for specific purposes. It applies to luxury and sin goods: cars (1-22% depending on type), aerated drinks (12%), tobacco products (varies), coal (₹400/tonne). Cess is not eligible for Input Tax Credit and goes to a separate fund.
Do I need to register for GST?
GST registration is mandatory if: annual turnover exceeds ₹40 lakh (₹20 lakh for services or special category states), you make inter-state supplies, you sell on e-commerce platforms, or you are required to pay reverse charge. Below these limits, registration is optional but may be beneficial for claiming ITC.
What is Reverse Charge Mechanism (RCM) in GST?
Under RCM, the recipient of goods/services pays GST directly to the government instead of the supplier. This applies to: purchases from unregistered dealers (for specified goods), legal services from advocates, services from goods transport agencies, and import of services. RCM ensures tax compliance even when the supplier is unregistered.

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