Sales Tax Calculator – Add or Remove Sales Tax Online
Add or remove sales tax from a price, and see the tax amount at any rate.
About the Sales Tax Calculator
What is the Sales Tax Calculator?
A sales tax calculator adds sales tax to a pre-tax price, or strips it out of a tax-inclusive price to reveal the base amount.
Why use this calculator?
Sales tax rates vary by state, county and city, and sometimes by product. This tool lets you apply any combined rate instantly for budgeting or bookkeeping.
How to use it
- Enter the price.
- Enter the combined sales tax rate.
- Choose whether the price already includes tax.
- See the pre-tax price, the tax and the total.
Formula
Tax = Price × rate; Tax-inclusive price = Price × (1 + rate)
Some items, such as groceries or clothing, may be exempt or taxed at a different rate.
Frequently Asked Questions
How do I find my combined sales tax rate?
Add the state rate to any county, city and special-district rates that apply to your location. Many state revenue websites publish a lookup by address.
Is sales tax the same as VAT?
They are similar but not identical. Sales tax is collected once at the final sale; VAT is collected at each stage of production and is usually included in displayed prices.
What is the difference between marginal and effective tax rate?
Your marginal rate applies to your last dollar of income. Your effective rate is the average rate you pay across all income, which is always lower.
What is a tax deduction versus a credit?
A deduction reduces taxable income, so it saves you your marginal rate on that amount. A credit reduces your tax bill directly, dollar for dollar.
What is taxable income?
It is your gross income minus adjustments and deductions that the tax code allows, such as the standard deduction or retirement contributions.
Do these results reflect my exact jurisdiction?
No. Tax rules differ widely by country, state and year. Use these numbers as an approximation and confirm with official tables or a tax professional.
Is this calculator free to use?
Yes. Every calculator on this site is completely free, with no hidden fees, no subscriptions and no limits on how many times you can use it.
How accurate are the results?
We use standard, widely accepted formulas and calculate in your browser using double-precision arithmetic. Results are rounded for readability, so treat them as reliable estimates rather than a guarantee. Real-world factors can vary the true figure.
Can I add this calculator to my own website?
Yes. Open this calculator page and use the "Add to your website" box in the sidebar to copy a ready-made iframe snippet, then paste it into any HTML page.
Does it work on a phone or tablet?
Yes. The layout is fully responsive, so it works on desktops, laptops, tablets and mobile phones, and every input adapts to touch screens.