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Sales Tax Calculator
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Frequently Asked Questions
How do I calculate sales tax?
To calculate sales tax, multiply the price by the tax rate (as a decimal). For example, for a $100 item with 8% tax: $100 × 0.08 = $8 tax, making the total $108.
How do I remove sales tax from a total?
To extract the pre-tax price from a tax-inclusive total, divide by (1 + tax rate). For example, for a $108 total with 8% tax: $108 / 1.08 = $100 pre-tax price.
What is the average sales tax rate in the US?
The average combined state and local sales tax rate in the US is about 7.12%. State rates range from 0% (Oregon, Montana, Delaware, New Hampshire) to 7.25% (California), with local taxes adding more.
Are all products subject to sales tax?
No, many states exempt essential items like groceries, prescription medications, and clothing from sales tax. Rules vary significantly by state.