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Calculate sales tax on any purchase. Add tax to find the total or extract the original price and tax from a tax-inclusive amount.
Sales tax is a consumption tax imposed by governments on the sale of goods and services, calculated as a percentage of the purchase price and added at the point of sale.
Calculate the total price including sales tax.
Formula
Total = Price × (1 + Rate ÷ 100)Price = pre-tax amount of the item
Rate = sales tax percentage (e.g., 8.5)
Total = final amount including tax
Worked Example
$200 purchase in California (8.68% combined rate)
Did you know? The US is one of the few developed nations without a national sales tax — rates vary by state and locality from 0% (Oregon, Montana, New Hampshire, Delaware) to over 11% combined in some Tennessee and Louisiana localities. There are over 11,000 distinct tax jurisdictions in the US.
Sources
Total = Price × (1 + Rate / 100)
Original = Total ÷ (1 + Rate / 100)
Tax = Total − Original Price
Note: Local taxes may add to these base rates.
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