What is a GST Calculator?

A GST calculator is an online tool that calculates the Goods and Services Tax (GST) payable on goods or services. It supports both exclusive (adding tax) and inclusive (removing tax) modes.

How do I calculate GST inclusive and exclusive?

To calculate GST exclusive: Multiply the base amount by the GST rate (e.g., ₹100 × 18% = ₹18 GST). To calculate GST inclusive: Divide the total amount by (1 + GST rate/100) to find the base price (e.g., ₹118 / 1.18 = ₹100 base price).

What are CGST, SGST, and IGST?

CGST stands for Central GST, SGST stands for State GST, and IGST stands for Integrated GST. CGST and SGST are collected by central and state governments respectively on intra-state sales (within the same state). IGST is collected on inter-state sales (between two states).

What is the difference between CGST and SGST splits?

For any transaction within the same state, the GST rate is split equally (50-50) into CGST and SGST. For example, on an 18% GST transaction, 9% is CGST and 9% is SGST.

Who needs to register and pay GST in India?

Businesses with an annual turnover exceeding ₹40 Lakhs for goods (₹20 Lakhs for North-Eastern states) or ₹20 Lakhs for services (₹10 Lakhs for North-Eastern states) are required to register and pay GST in India.

GST Calculator (Goods and Services Tax)

GST Calculator – Goods and Services Tax Calculator Guide

The Goods and Services Tax (GST) is a unified, multi-stage, destination-based indirect tax introduced in India on July 1, 2017. It replaced multiple central and state indirect taxes like Central Excise, Service Tax, VAT, Entry Tax, and Octroi into a single tax regime under the slogan "One Nation, One Tax".

Our online GST calculator simplifies your invoicing and tax filing by providing instant inclusive/exclusive tax amount splits, ensuring compliance with standard central and state tax laws.

Difference between Inclusive GST and Exclusive GST

Depending on the billing standard, commercial prices can either be tax-exclusive or tax-inclusive:

GST Exclusive: The base price of the item does not contain tax. The GST rate is calculated and added on top of the base price. (e.g., base ₹10,000 + 18% GST extra = ₹11,800 total).
GST Inclusive: The final retail price already includes the GST amount. The tax must be removed to find the actual base price. (e.g., total ₹10,000 inclusive of 18% GST = ₹8,474.58 base price + ₹1,525.42 GST tax).

Formulas for GST Calculations

The mathematical formulas behind GST calculations are simple:

1. GST Exclusive (Add GST)GST Amount = (Base Price × Rate) / 100
Total Price = Base Price + GST Amount

2. GST Inclusive (Remove GST)Base Price = Total Price / (1 + Rate / 100)
GST Amount = Total Price - Base Price

GST Tax Slabs in India

Different categories of goods and services attract different tax rates. The 5 primary rates are:

0% (Exempt): Essential goods like milk, fresh vegetables, flour, and medical services.
5%: Common items like sugar, edible oil, tea, coffee, and domestic LPG cylinders.
12%: processed foods, computers, mobiles, ghee, and luxury items.
18%: Standard services, commercial software, restaurants, capital goods, and toiletries. (Most common rate).
28%: Luxury goods, demerit goods, motor vehicles, soft drinks, and betting activities.

GST Calculator – Goods and Services Tax Calculator Guide

Our online GST calculator simplifies your invoicing and tax filing by providing instant inclusive/exclusive tax amount splits, ensuring compliance with standard central and state tax laws.

Difference between Inclusive GST and Exclusive GST

Depending on the billing standard, commercial prices can either be tax-exclusive or tax-inclusive:

GST Exclusive: The base price of the item does not contain tax. The GST rate is calculated and added on top of the base price. (e.g., base ₹10,000 + 18% GST extra = ₹11,800 total).
GST Inclusive: The final retail price already includes the GST amount. The tax must be removed to find the actual base price. (e.g., total ₹10,000 inclusive of 18% GST = ₹8,474.58 base price + ₹1,525.42 GST tax).

Formulas for GST Calculations

The mathematical formulas behind GST calculations are simple:

1. GST Exclusive (Add GST)GST Amount = (Base Price × Rate) / 100
Total Price = Base Price + GST Amount

2. GST Inclusive (Remove GST)Base Price = Total Price / (1 + Rate / 100)
GST Amount = Total Price - Base Price

GST Tax Slabs in India

Different categories of goods and services attract different tax rates. The 5 primary rates are:

0% (Exempt): Essential goods like milk, fresh vegetables, flour, and medical services.
5%: Common items like sugar, edible oil, tea, coffee, and domestic LPG cylinders.
12%: processed foods, computers, mobiles, ghee, and luxury items.
18%: Standard services, commercial software, restaurants, capital goods, and toiletries. (Most common rate).
28%: Luxury goods, demerit goods, motor vehicles, soft drinks, and betting activities.

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GST Calculator

Formula

How to use

Benefits

GST Component Breakdown