GST Calculator
Easily calculate Goods and Services Tax (GST) for your invoices. Add or remove GST to find base prices and tax amounts.
Calculation Details
Calculate tax on a base amount.
Total Amount
Base Price + GST
Base Amount
Exclusive of tax
Total GST
Tax amount
Price Breakdown
Invoice Summary
* For inter-state sales, IGST = ₹1,800.00 (CGST + SGST)
Understanding GST in India
The Goods and Services Tax (GST) is a value-added tax levied on most goods and services sold for domestic consumption. It was introduced in India on July 1, 2017, replacing a complex web of indirect taxes like VAT, excise duty, and service tax.
Types of GST
- CGST (Central GST): Collected by the Central Government on an intra-state sale (e.g., a transaction happening within Maharashtra).
- SGST (State GST): Collected by the State Government on an intra-state sale. Usually, CGST and SGST are equal halves of the total GST rate.
- IGST (Integrated GST): Collected by the Central Government for inter-state sales (e.g., a transaction between Maharashtra and Gujarat).
How to Calculate GST Manually
Adding GST
If you have a base price of ₹1,000 and the GST rate is 18%:
- GST = (1000 × 18) / 100 = ₹180
- Total = 1000 + 180 = ₹1,180
Removing GST
If the total price is ₹1,180 and it includes 18% GST:
- Base = 1180 / (1 + (18/100))
- Base = 1180 / 1.18 = ₹1,000
- GST = 1180 - 1000 = ₹180
Frequently Asked Questions
What is GST?
Goods and Services Tax (GST) is an indirect tax used in India on the supply of goods and services. It is a comprehensive, multistage, destination-based tax that has replaced many indirect taxes in India.
What are the different GST slabs in India?
The primary GST slabs in India are 5%, 12%, 18%, and 28%. There are also special rates of 0.25% on rough precious and semi-precious stones and 3% on gold. Essential items are often exempt (0%).
What is the difference between CGST, SGST, and IGST?
CGST (Central GST) and SGST (State GST) are levied on intra-state sales (within the same state). The total GST is divided equally between the Center and the State. IGST (Integrated GST) is levied on inter-state sales (between two states) and is collected entirely by the Central Government.
How do I calculate GST?
To add GST: GST Amount = (Original Cost × GST Rate) / 100. Net Price = Original Cost + GST Amount. To remove GST (find base price): Base Price = Original Cost / (1 + (GST Rate / 100)). GST Amount = Original Cost - Base Price.