GST / Tax Calculator

Calculate Goods and Services Tax (GST), Value Added Tax (VAT), and Sales Tax. Easily add tax to net prices (exclusive), extract tax from gross amounts (inclusive), or calculate tax subtotals.

Why Use This Tool?

• Business Invoicing: Calculate exact GST/VAT tax amounts to add to client invoices.
• Tax Extraction from Receipts: Extract pre-tax net prices and tax amounts from total tax-inclusive store receipts.
• Multiple Tax Slabs: Calculate standard 5%, 12%, 18%, 28% or custom sales tax rates.

How to Use

1. Enter Amount and Tax Rate percentage (e.g., `18%`).
2. Select Mode: "Add Tax (Tax Exclusive)" or "Remove Tax (Tax Inclusive)".
3. View itemized Net Price, Tax Amount, and Gross Total.

Real Working Example

Input:

Mode: Add 18% Tax | Net Amount: $1,000

Output Result:

Net Price: $1,000.00 | Tax (18%): $180.00 | Gross Total (Inclusive): $1,180.00

Important Technical Details & Formulas

• Tax Exclusive Formula: `Tax = Amount * (TaxRate / 100)` and `Gross = Amount + Tax`.
• Tax Inclusive Formula: `Net = Gross / (1 + (TaxRate / 100))` and `Tax = Gross - Net`.
• Client-Side Engine: Fast local execution in browser memory.

Related Mathematics & Financial Tools

• Percentage Calculator: Calculate percentage values.
• Discount Calculator: Calculate sale discounts.
• Currency Formatter: Format currency numbers.