Sales Tax Calculator — Calculate Sales Tax on Any Purchase
Our Sales Tax Calculator helps you determine the exact cost of any purchase including sales tax. Whether you're shopping online, budgeting for a big purchase, or just curious about how much tax you're paying, this tool gives you instant answers. Simply enter the pre-tax price and applicable tax rate to see the total cost breakdown.
For US shoppers, we've included quick-select options for common state and city tax rates. Sales tax rates vary significantly by location — from 0% in Oregon and Montana to over 10% in parts of Illinois and California. Understanding your local tax rate helps you budget more accurately.
How to Use the Sales Tax Calculator
- Enter the pre-tax priceType the price of the item before tax is applied.
- Enter the tax rateInput your local sales tax rate, or select a US state from the dropdown for common rates.
- Set quantityIf buying multiple items, enter the quantity to see the total cost for all items.
- View results instantlyThe calculator updates in real-time as you type, showing subtotal, tax amount, and total price.
Frequently Asked Questions
Five US states have no statewide sales tax: Oregon, Montana, New Hampshire, Delaware, and Alaska. However, some cities in Alaska may still charge local sales taxes. Many other states have no tax on specific items like groceries or clothing.
Since the 2018 Supreme Court ruling (South Dakota v. Wayfair), most states require online retailers to collect sales tax if they have economic nexus (significant sales) in that state. However, tax rules vary by state and retailer.
Check your state's Department of Revenue website, or look at a recent receipt which shows the tax rate. You can also search "[your city/state] sales tax rate" online. Remember, combined rates include state, county, and city taxes.
Related Tools
Try these other free finance calculators.