Sales Tax Calculator
Add sales tax to a price, take it out of a total, or find the tax rate. Pick any US state to fill in its rate.
Example loaded: 100 at a 7.25% sales tax rate. Change the numbers and select Calculate.
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Quick answer
To add sales tax, multiply the price by the tax rate and add the result. For a 100 item at 7.25%, the tax is 100 × 0.0725 = 7.25 and the total is 107.25. To take tax out of a total, divide by 1 plus the rate: 107.25 ÷ 1.0725 = 100.
Choose a state to fill in its rate, or type any rate yourself. Your local rate may be higher, so check your receipt or your city’s rate if you need an exact figure.
How to calculate sales tax
Add sales tax to a price
- Turn the rate into a decimal: 7.25% = 0.0725.
- Multiply the price by it: 100 × 0.0725 = 7.25. That is the tax.
- Add the tax to the price: 100 + 7.25 = 107.25.
Calculate sales tax backwards from the total
- Add 1 to the rate as a decimal: 1 + 0.0725 = 1.0725.
- Divide the total by it: 107.25 ÷ 1.0725 = 100. That is the price before tax.
- Subtract to find the tax: 107.25 − 100 = 7.25.
Do not subtract 7.25% from the total. The tax is 7.25% of the price before tax, not of the total, so that shortcut gives a slightly wrong answer.
Find the sales tax rate
Subtract the price before tax from the price after tax, divide by the price before tax and multiply by 100. For 80 and 86.40: (86.40 − 80) ÷ 80 × 100 = 8%.
US sales tax rates by state, 2026
State rates and average combined state and local rates as of January 1, 2026, from the Tax Foundation. Rates change, and the exact rate depends on your city and county. Five states have no statewide sales tax: Alaska, Delaware, Montana, New Hampshire and Oregon. Alaska allows local sales taxes.
| State | State rate | Average combined rate |
|---|---|---|
| Alabama | 4% | 9.46% |
| Alaska | 0% | 1.82% |
| Arizona | 5.6% | 8.52% |
| Arkansas | 6.5% | 9.46% |
| California | 7.25% | 8.99% |
| Colorado | 2.9% | 7.89% |
| Connecticut | 6.35% | 6.35% |
| Delaware | 0% | 0% |
| District of Columbia | 6% | 6% |
| Florida | 6% | 6.98% |
| Georgia | 4% | 7.49% |
| Hawaii | 4% | 4.5% |
| Idaho | 6% | 6.03% |
| Illinois | 6.25% | 8.96% |
| Indiana | 7% | 7% |
| Iowa | 6% | 6.94% |
| Kansas | 6.5% | 8.69% |
| Kentucky | 6% | 6% |
| Louisiana | 5% | 10.11% |
| Maine | 5.5% | 5.5% |
| Maryland | 6% | 6% |
| Massachusetts | 6.25% | 6.25% |
| Michigan | 6% | 6% |
| Minnesota | 6.875% | 8.14% |
| Mississippi | 7% | 7.06% |
| Missouri | 4.225% | 8.44% |
| Montana | 0% | 0% |
| Nebraska | 5.5% | 6.98% |
| Nevada | 6.85% | 8.24% |
| New Hampshire | 0% | 0% |
| New Jersey | 6.625% | 6.6% |
| New Mexico | 4.875% | 7.67% |
| New York | 4% | 8.54% |
| North Carolina | 4.75% | 7% |
| North Dakota | 5% | 7.09% |
| Ohio | 5.75% | 7.29% |
| Oklahoma | 4.5% | 9.06% |
| Oregon | 0% | 0% |
| Pennsylvania | 6% | 6.34% |
| Rhode Island | 7% | 7% |
| South Carolina | 6% | 7.49% |
| South Dakota | 4.2% | 6.11% |
| Tennessee | 7% | 9.61% |
| Texas | 6.25% | 8.2% |
| Utah | 6.1% | 7.42% |
| Vermont | 6% | 6.39% |
| Virginia | 5.3% | 5.77% |
| Washington | 6.5% | 9.51% |
| West Virginia | 6% | 6.59% |
| Wisconsin | 5% | 5.72% |
| Wyoming | 4% | 5.56% |
Worked examples
- Add tax: a 45 item at 4% has tax of 1.80, so the total is 46.80.
- Total with a state rate: a 200 purchase at an 8.2% average combined rate costs 216.40.
- Remove tax: a receipt total of 107.25 at 7.25% means the price was 100 and the tax was 7.25.
- Find the rate: a 80 item that costs 86.40 at the till had an 8% tax rate.
Select Load example above to try one in the calculator.
Frequently asked questions
How do I calculate sales tax?
Multiply the price by the tax rate as a decimal, then add it to the price. At 7.25%, a 100 item has 7.25 of tax and a total of 107.25.
How do I calculate sales tax backwards from the total?
Divide the total by 1 plus the rate as a decimal. For 107.25 at 7.25%, divide by 1.0725 to get a price of 100. Choose Remove tax and the calculator does it.
How do I find the sales tax rate?
Subtract the price before tax from the price after tax, divide by the price before tax and multiply by 100. Choose Find rate to do this automatically.
Which states have no sales tax?
Alaska, Delaware, Montana, New Hampshire and Oregon have no statewide sales tax. Alaska lets local areas add their own.
Why is my local rate different from the state rate?
Many cities, counties and districts add their own sales tax on top of the state rate. The average combined rate in the table shows the typical total for each state.
Does the calculator use my exact local rate?
No. It uses the rate you type or the state rate you pick. For an exact figure, enter your local combined rate from your receipt or your city or state tax website.
Is sales tax the same as VAT?
No. Sales tax is charged once, at the final sale. VAT is charged at each stage of production and sale. To add VAT with this calculator, enter the VAT rate as the tax rate.
Is food or clothing taxed?
It depends on the state and the item. Many states reduce or exempt groceries, prescription medicine or clothing. Check your state revenue department for the rules.
Is this tax advice?
No. This calculator is a tool for estimates, and your actual tax may differ. Check with the seller or a tax professional when the amount matters.
Is my data stored?
No. Everything is calculated in your browser and nothing is sent anywhere.
About this calculator
Written by Umar Khan. Sales tax is the price times the rate, and the total is the price plus tax. State rates are as of January 1, 2026 from the Tax Foundation and may have changed. Your numbers stay in your browser. Last updated November 10, 2026. Questions or corrections: [email protected].
Written by Umar Khan
Umar Khan is a PhD student in engineering at NTNU, the Norwegian University of Science and Technology, in Norway. Every formula and worked example on this page is shown in full so you can check each result yourself. Corrections are welcome at [email protected].
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For information only, not professional advice.
Written by Umar Khan. Last updated: November 10, 2026.