Sales Tax Calculator
Work out tax on a purchase, or strip tax out of a total.
%
Total with tax
$108.50
$8.50 tax
Net
$100.00
Tax
$8.50
Gross
$108.50
ShowHide the working
- 1Tax = $100.00 × 8.5% = $8.50
- 2Total = $108.50
Formula
gross = net × (1 + rate ÷ 100)How it works
Adds sales tax to a price, or works backwards to strip tax out of a tax-inclusive total.
Example
8.5% tax on $100 makes $108.50.
About the Sales Tax Calculator
Work out tax on a purchase, or strip tax out of a total. It sits in the Business & Sales section of NWS Calc, a free collection of calculators that run entirely in your browser. There is no signup, no paywall and no tracking — open the page, enter your numbers, get an answer.
Frequently asked questions
- Is the Sales Tax Calculator free to use?
- Yes. Every calculator on NWS Calc is completely free, with no signup, no usage limits and no ads.
- Does my data leave my device?
- No. The Sales Tax Calculator runs entirely in your browser using JavaScript. Nothing you type is uploaded, logged or stored on a server.
- Can I use the Sales Tax Calculator on my phone?
- Yes. The page is fully responsive and works in any modern mobile or desktop browser — there is nothing to install.
- What else is in Business & Sales?
- Margins, markup, tax, payroll, discounts and break-even analysis. You can browse the full Business & Sales category for related calculators.