The basic sales-tax formula
For a quick estimate, multiply the taxable price by the tax rate expressed as a decimal. If the rate is written as a percentage, divide it by 100 first.
At 7.25%, a $100 taxable purchase has an estimated $7.25 tax; the estimated total is $107.25.
Use the Everydaily sales-tax calculator to apply a rate you already know. It does not look up rates or decide whether a product is taxable.
Why rates differ by location
In the United States, the amount shown at checkout can include state, county, city, and special district components. For many transactions, the delivery location matters. Some products or services may have a reduced rate or exemption, and the rules can change over time.
That is why a single nationwide rate is not a reliable shortcut. Use the rate provided by the retailer or check the relevant state and local tax agencies for the transaction and item you have in mind.
Why the estimate and checkout can differ
- Taxability: the calculator cannot tell whether your item, service, or delivery fee is taxable.
- Discounts: coupons or promotions can change the taxable amount, depending on how they are applied.
- Destination rules: online orders may use a rate tied to the delivery address.
- Rounding and fees: retailer calculations and transaction-specific fees can affect the final total.
A careful way to estimate a purchase
- Identify the taxable portion of the transaction.
- Use the combined rate that applies to the purchase location.
- Multiply price by rate, then add the tax to the price.
- Check the final checkout amount before paying.
The estimate is useful for budgeting, but the seller’s checkout and official tax guidance determine the actual amount. Everydaily is an informational tool, not tax advice.
Common questions
Should I use the state rate or local combined rate?
Use the combined rate that applies to the particular purchase and location. Statewide rates may not include local components.
Is sales tax always charged on shipping?
No universal answer applies. Shipping treatment depends on the state, the order, and how the charge is stated.
Can I use the calculator for a refund or tax filing?
It is a basic purchase estimate, not a tax return or a substitute for transaction records.