Sales Tax Calculator
Calculate sales tax and the final price at checkout, using whatever combined tax rate applies where you're shopping.
Sales tax rates in the US vary by state, county and city, so there is no single nationwide rate this tool can apply automatically. Enter the combined rate for your location — most state revenue department websites list the current rate.
$100.00
Price before tax
$7.25
Tax amount
$107.25
Final price
Everything you enter is processed in your browser and isn't sent to our servers.
How to use sales tax calculator
- 1Enter the price before tax.
- 2Enter the sales tax rate that applies to you.
- 3Read the tax amount and the final price.
About this tool
In the US, sales tax is set at the state level and often layered with county and city taxes on top, so the combined rate varies not just between states but between neighboring cities — there is no single nationwide rate this tool could apply automatically, which is why the rate is always something you enter yourself.
The math itself is simple: tax amount = price × rate, and final price = price + tax amount. The value this tool adds is letting you check that arithmetic instantly for any rate, rather than looking up whether a specific state or city combination is correct.
Frequently asked questions
Sales tax rates in the US combine state, county and city rates that change by location and sometimes by product category, and can change over time. Reliably determining the exact rate for an address requires official, regularly updated tax data this tool doesn't have — entering the rate yourself keeps the result accurate for your situation.
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