Sales Tax & VAT Calculator
Calculate sales tax, Value Added Tax (VAT), and Goods & Services Tax (GST). Calculate total price from net cost, or run reverse calculations to extract the pre-tax price and tax paid from a final receipt total.
How to Use Sales Tax & VAT Calculator
Select Mode
Choose 'Add Tax' (Net to Gross) or 'Reverse Tax' (Gross to Net pre-tax amount).
Input Amount
Enter your starting base price or total invoice receipt amount.
Set Tax Rate
Enter your local state, provincial, or national tax percentage.
About Sales Tax & VAT Calculator
To extract sales tax from a gross total, divide the gross total by (1 + Tax Rate). For example, with an 8% tax rate, a $108 receipt has a pre-tax base of $108 / 1.08 = $100, and exactly $8 in tax.
Key Features
- Bi-directional: Add tax to net amount, or extract pre-tax amount from total
- Preset tax rates for major US states and international VAT regimes
- Itemized breakdown of base cost, exact tax collected, and grand total
- Supports multi-item subtotal addition
- Complete client-side privacy
Frequently Asked Questions
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