State and Local Sales Tax Calculator
Calculate state tax, local tax, and use tax amounts on any purchase price instantly
Enter 0 if no state tax applies
Applied instead of state tax for out-of-state purchases
City or county tax added on top of state tax
| Component | Rate | Amount |
|---|
Common State Sales Tax Rates
| State | State Rate | Avg Combined Rate |
|---|---|---|
| California | 7.25% | ~8.68% |
| Texas | 6.25% | ~8.20% |
| New York | 4.00% | ~8.52% |
| Florida | 6.00% | ~7.02% |
| Illinois | 6.25% | ~8.86% |
| Pennsylvania | 6.00% | ~6.34% |
| Ohio | 5.75% | ~7.22% |
| Washington | 6.50% | ~9.38% |
| Tennessee | 7.00% | ~9.55% |
| Oregon | 0.00% | 0.00% |
| Montana | 0.00% | 0.00% |
| New Hampshire | 0.00% | 0.00% |
Rates are approximate and subject to change. Always verify current rates with your state department of revenue.
How Sales Tax Calculations Work
Sales tax calculations use a straightforward set of formulas. Sales tax is computed as a percentage of the pre-tax purchase price and is added on top to produce the final total.
Use Tax Amount = Price × (Use Tax Rate / 100)
Local Tax Amount = Price × (Local Tax Rate / 100)
Total = Price + State Tax + Use Tax + Local Tax
Each tax is calculated independently from the original price, not stacked on top of each other. This means a 6% state tax and a 2% local tax on a $100 item produces $6.00 state tax and $2.00 local tax, for a total of $108.00, not $108.12.
Understanding Use Tax
Use tax is charged when you purchase goods from a seller in a state with no sales tax (or a lower rate) for use in your home state, which does charge sales tax. For example, if you live in a state with 6% sales tax and order online from a retailer in a state with no sales tax, you may owe 6% use tax on that purchase to your home state. You generally pay either state sales tax or use tax, not both.
How to Find Your Local Tax Rate
Local sales tax rates are set by cities, counties, or other municipalities and vary significantly even within the same state. Contact your local tax authority or check your state revenue department website. The Tax Foundation also publishes updated combined state and local tax rate maps each year.
Frequently Asked Questions
To calculate sales tax, multiply the pre-tax price by the decimal equivalent of the tax rate. For a $150 item with an 8% tax rate: tax = $150 × 0.08 = $12.00. The total price including tax is $150 + $12 = $162.00. If you have multiple tax rates (state and local), calculate each separately and add them all to the original price.
Sales tax is collected by the seller at the time of purchase in states that have a sales tax. Use tax is self-reported by the buyer when they purchase goods from an out-of-state seller that did not collect sales tax, and those goods are used in a state that has a sales tax. You generally owe one or the other on a given purchase, not both simultaneously.
As of 2025, five US states have no statewide sales tax: Oregon, Montana, New Hampshire, Delaware, and Alaska. However, Alaska allows local jurisdictions to impose their own sales taxes, so some areas of Alaska do charge tax at the local level. The other four states have no sales tax at either the state or local level.
To find the pre-tax price from a total that already includes tax, divide the total by (1 + combined tax rate as a decimal). For example, if you paid $107.50 and the total tax rate is 7.5%, the pre-tax price = $107.50 / 1.075 = $100.00. This works for any combination of state, use, and local taxes added together.
Sales tax is generally calculated on the price after discounts and coupons are applied. If an item is originally $100 and you have a $20 coupon, the taxable amount is the discounted price of $80, not the original $100. However, rules vary by state and by the type of coupon or discount, so confirm the specific treatment with your state tax authority for large purchases.