Sales Tax Calculator
Calculate sales tax amount and total price for any purchase.
Results
Tax Amount
$0
Total Price
$0
Overview
Sales tax is a consumption tax added to the price of most goods and some services, and it varies wildly by country, region, and product type. The United States has no federal sales tax, but states, counties, and cities can each add their own, with combined rates ranging from 0 in states like Oregon and New Hampshire to over 10 percent in parts of Louisiana and Tennessee. The European Union uses VAT (value added tax) at national rates of 17 to 27 percent, generally included in the displayed price. Canada, Australia, and India run similar GST (goods and services tax) systems, typically 5 to 15 percent.
The basic math is short. Total price = net price × (1 + tax rate). To go the other way, net price = total price ÷ (1 + tax rate). A $50 item with 8 percent tax costs $54. A receipt that shows $108 total at 8 percent means the pre-tax price was exactly $100. The reverse calculation is the one most people skip, but it is the right one to use when the post-tax total is the only number on the receipt.
A few practical points come up often. The tax is usually applied to the selling price before any discount, then subtracted from the discounted total, or applied to the discounted total directly. The order matters in some jurisdictions and not in others, so a calculator is useful when the receipt looks off. Some items, like groceries, prescription drugs, or clothing under a price threshold, are exempt or taxed at a lower rate, and the calculator can show the impact of those exemptions by adjusting the rate.
For cross-border shopping, the same arithmetic applies with a different rate. A European seeing a $100 price tag in a U.S. store should mentally add the local U.S. sales tax, while an American buying online from a European retailer usually pays the VAT-inclusive price. The calculator below accepts either a net or gross price, plus the local tax rate, and returns the missing piece.
How to use
- Pick a mode: add tax to a net price, or remove tax from a gross (post-tax) price.
- Enter the price and the tax rate as a percentage. For U.S. purchases, use the combined state and local rate.
- Click calculate to see the tax amount, the total price including tax, and, in reverse mode, the pre-tax base.
- Re-run with a different rate to compare what the same purchase would cost across states, provinces, or countries.
Formula
Interpreting your results
The total is the headline figure for budgeting. The tax portion is what goes to the government and not to the seller. In reverse mode, the pre-tax base is the number to use when comparing two prices that quote tax differently, since a $100 tag in a tax-free state and a $107 tag in a 7 percent tax state are actually the same price.