About GST Calculator Online: Goods and Services Tax Calculator

Calculate GST inclusive and exclusive amounts online for free. Compute Goods and Services Tax with standard 5%, 12%, 18%, and 28% rates with private math.

How to Use

1. Enter Base Amount: Input the net price before tax or total gross receipt figure.
2. Select GST Slab: Choose common tax slabs (such as 5%, 12%, 18%, or 28%) or type a custom rate percentage.
3. Toggle Inclusive / Exclusive: Click to calculate GST-exclusive additions or remove GST from gross invoice totals.

Key Capabilities & Features

• Dual Mode Calculation: Compute total price including GST or back-calculate pre-tax net values from gross receipts.
• Standard International Slabs: Preloaded with official Australian, Canadian, Indian, and New Zealand GST tax brackets.
• Split Tax Breakdown: Displays central and state tax distributions (CGST + SGST) alongside combined totals.
• 100% In-Browser Execution: Operates entirely inside your browser memory with zero transaction tracking.

Frequently Asked Questions