GST Calculator
Calculate Goods and Services Tax (GST) easily for inclusive and exclusive amounts.
What is the GST Calculator?
Our GST Calculator is a fast and simple tool designed to help individuals, businesses, and accountants easily compute the Goods and Services Tax (GST). Whether you need to add GST to a base price (Exclusive GST) or extract the GST amount from a total price (Inclusive GST), this tool provides accurate calculations in real-time.
Practical Examples & Reference Guide
Example Scenarios
| Scenario | Amount | GST Rate | Tax Type | Result |
|---|---|---|---|---|
| Adding GST to Price | 1,000 | 10% | Exclusive | GST: 100, Total: 1,100 |
| Extracting GST from Total | 1,100 | 10% | Inclusive | GST: 100, Base: 1,000 |
| Business Invoice Calculation | 5,500 | 18% | Exclusive | GST: 990, Total: 6,490 |
| Receipt Verification | 6,490 | 18% | Inclusive | GST: 990, Base: 5,500 |
In-Depth Technical Guide
How GST Calculation Works
The Goods and Services Tax (GST) calculation depends on whether the tax is already included in the price or needs to be added to the base price.
1. Exclusive GST (Adding GST)
When the price given does not include GST, you must add the tax to find the total cost.
- GST Amount =
Base Amount × (GST Rate / 100) - Total Amount =
Base Amount + GST Amount
2. Inclusive GST (Extracting GST)
When the price already includes GST, you can extract the tax amount and find the original base price.
- GST Amount =
Total Amount - (Total Amount × (100 / (100 + GST Rate))) - Base Amount =
Total Amount - GST Amount
Using our calculator prevents manual errors and ensures precise financial tracking for invoices and tax filing.