Sales Tax Calculator

Sales Tax Calculator
Add or remove sales tax from a price using a specified tax rate.
Enter a price and tax rate, then click Calculate.

What this calculator does

This sales tax calculator can either add tax to a pre-tax price or remove tax from a tax-inclusive price. It returns the tax amount, the price before tax, and the total price including tax.

Use it to quickly check receipts, estimate checkout totals, or separate revenue and tax amounts when tracking business finances.

How to use this calculator

Enter your information in the fields above, run the calculation, and review the result to understand what it means for your situation.

How to interpret your result

Look at the output in the context of your overall goals rather than in isolation. Consider how sensitive the result is to changes in your inputs (for example, adjusting the amount, rate, or time) to understand which factors matter most.

Limitations and notes

This tool is a simplified model and does not capture every nuance of real life. Treat it as a planning aid, not a guarantee. For important financial or health decisions, combine these results with professional advice and more detailed analysis.