CalcBase – Business Calculators

Sales Tax Calculator

Enter a price and sales tax rate to see the tax amount and total price. Choose from preset US state tax rates or enter a custom rate. Useful for shopping, invoicing, and comparing prices across states.

Formula

Sales Tax = Price × (Tax Rate ÷ 100)
Total Price = Price + Sales Tax

In the US, sales tax is added on top of the listed price at the point of sale. Multiply the pre-tax price by the sales tax rate to find the tax amount, then add it to get the total.

Worked Examples

California sales tax on a $50 purchase

Buying a $50 item in California with a 7.25% state sales tax.

Price
$50
Sales tax rate
7.25%

Sales tax = $3.63. Total price = $53.63.

Comparing prices across states

A $500 laptop purchased in Oregon (0%) vs New York (4% state + local).

Price
$500
Tax rate
8%

In NY: $40 tax, $540 total. In Oregon: $0 tax, $500 total.

Frequently Asked Questions

How is sales tax different from VAT?▾

Sales tax is charged only at the final point of sale to the consumer. VAT is collected at every stage of production and distribution. Sales tax is used in the US; VAT is used in the UK, EU, and most other countries.

Which US states have no sales tax?▾

Five states have no statewide sales tax: Oregon, Montana, Delaware, New Hampshire, and Alaska. However, Alaska allows local jurisdictions to impose sales tax.

Does sales tax apply to online purchases?▾

Yes, in most cases. Since the 2018 Supreme Court ruling (South Dakota v. Wayfair), states can require online retailers to collect sales tax even if they have no physical presence in the state.

Why do sales tax rates vary so much?▾

US sales tax is set at the state, county, and city level. State rates range from 0% to 7.25%, and local surcharges can add 1–5% more. The total combined rate varies by exact location.

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Learn More

VAT Rates by Country: Complete 2026 Guide to Global Tax Rates

A comprehensive reference of VAT, GST, and consumption tax rates for major economies worldwide. Includes UK, EU, Australia, Canada, India, and more.

VAT vs Sales Tax: What's the Difference and Why It Matters

VAT and sales tax both add cost to purchases, but they work differently. This guide explains the key differences, how each is calculated, and which countries use which system.

All calculations are for informational purposes only. They should not replace professional financial, tax, or legal advice. Always consult a qualified professional for decisions affecting your finances or business.