Sales Tax Calculator
Calculate sales tax quickly. Add tax to a price or remove tax from a total (pre-tax amount).
Privacy: calculations run locally in your browser. No inputs are stored or sent to a server.
How it works
Add tax: tax = price × rate, total = price + tax
Remove tax: price = total ÷ (1 + rate), tax = total − price
Examples
- Add: $100 at 8% → tax $8 → total $108
- Remove: $108 at 8% → price $100 → tax $8
When to use this tool
This tool is designed for quick, practical tasks such as everyday calculations, data formatting, or simple conversions. It is best used when you need fast results without installing software or using complex tools.
When to use
- Quick checks or one-time calculations
- Validating or converting data before using it elsewhere
- Simple tasks that do not require advanced software
When not to use
- Critical financial, legal, or medical decisions
- Large-scale or automated processing
- Situations requiring guaranteed precision beyond basic validation
Always review results before using them in important contexts.
About this tool
This tool helps you perform quick utility operations directly in your browser. It runs entirely in your browser without sending data to a server.
You can use this tool when handling simple tasks without installing additional software. The results should be interpreted as a processed output based on your input data.
FAQ
- Is this VAT?
Not exactly. VAT is often included in the listed price, while this tool is for a sales tax workflow where tax is added at checkout. If your prices already include tax, use a VAT-style calculator.
- Why does remove-tax use division?
Because the tax is embedded in the total. To find the pre-tax price, divide the total by 1 plus the rate, then compute tax as total minus price.
- Does this round like retailers?
This uses standard rounding for display. Real receipts may round per line item or use different rounding rules depending on jurisdiction and retailer systems.