GST / Sales Tax Calculator Tool

🧾 GST / Sales Tax Calculator

Instantly calculate Goods and Services Tax (GST), CGST, SGST breakdown, or reverse-calculate GST inclusive prices.

Base Amount (Net Price)

GST Tax Rate (%)

Net Amount

₹10,000

CGST

₹900

SGST / UTGST

₹900

Total Tax Amount

₹1,800

Total Final Amount (Gross Price)

₹11,800

Understanding Goods and Services Tax (GST)

The Goods and Services Tax (GST) is a comprehensive, multi-stage, destination-based indirect tax system levied on the supply of goods and services. Implemented to replace multiple indirect taxes like Excise Duty, VAT, and Service Tax, GST simplifies tax compliance for businesses and consumers alike.

Under the GST regime, tax is levied at every point of sale with an Input Tax Credit (ITC) mechanism that prevents the cascading effect of double taxation.

Standard GST Rate Slabs & Category Examples

Tax Rate	Applicable Product & Service Categories
0% (Exempt)	Essential groceries, fresh milk, unbranded food grains, healthcare, education.
5% Rate	Apparel under ₹1,000, packaged food, tea, coffee, medicine, economy air tickets.
12% Rate	Processed food items, computers, mobile accessories, business class air tickets.
18% Rate	IT services, telecom, financial services, soaps, toothpaste, restaurants.
28% Rate	Luxury cars, tobacco, aerated drinks, air conditioners, 5-star hotel stays.

GST Calculation Formulas Explained

1. Adding GST (Exclusive Tax): Used when calculating tax on a base net price.

GST Amount = (Base Amount × GST Rate) ÷ 100
Gross Total = Base Amount + GST Amount

2. Removing GST (Inclusive Tax): Used to calculate original net price from a billing total.

Base Amount = Gross Amount ÷ (1 + (GST Rate ÷ 100))
GST Amount = Gross Amount - Base Amount

Frequently Asked Questions (FAQ)

Q1: 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 (split 50:50). IGST (Integrated GST) applies to interstate transactions across state borders.

Q2: How do I reverse calculate GST from an inclusive MRP price?

Select the "Remove GST (Inclusive)" option above, enter the final bill price and tax rate, and the tool will automatically output the original net price before tax.