GST Calculator
Add GST to an original base price or remove GST from a total price.
How to Use the GST Calculator
Using the GST calculator is quick and straightforward:
- Enter your transaction amount in the Original amount (₹) box.
- Specify the applicable tax rate percentage in the GST rate (%) box (e.g., 5, 12, 18, or 28).
- Choose whether to Add GST (tax-exclusive) or Remove GST (tax-inclusive) from the dropdown.
- Click Calculate now → to see the broken down gross or net figures.
Formula & Calculation Method
Add GST (Tax Exclusive): GST Amount = (Base Amount × GST Rate) / 100
Remove GST (Tax Inclusive): Base Amount = Total Inclusive Amount / (1 + GST Rate / 100)
Practical Examples
Example 1: Adding 18% GST to ₹1,000 net service fee
Base amount = ₹1,000. GST (18%) = ₹180. Total price payable = ₹1,180.
Example 2: Removing 18% GST from a ₹1,180 total retail invoice
Inclusive total = ₹1,180. Net price before tax = ₹1,000. GST portion extracted = ₹180.
Example 3: Adding 5% GST to ₹500 grocery order
Base amount = ₹500. GST (5%) = ₹25. Final billing total = ₹525.
Frequently Asked Questions
What does GST stand for?
GST stands for Goods and Services Tax, an indirect tax applied to the supply of goods and services.
What is the difference between GST inclusive and exclusive prices?
GST Exclusive means GST is added on top of the net base price. GST Inclusive means the listed price already contains the tax amount.
What are the standard GST tax slabs?
Common GST tax slabs in India include 5%, 12%, 18%, and 28% depending on the goods or services.
How do I split GST into CGST and SGST?
For intra-state transactions, the total calculated GST rate is split equally (50% CGST and 50% SGST). For example, an 18% GST rate equals 9% CGST + 9% SGST.
Does this GST calculator store my transaction entries?
No. All financial calculations occur locally within your internet browser.