Sales Tax Calculator

Enter the price before tax and tax rate to calculate the final price including tax.

Price Before Tax

$

Tax Rate

%
Enter the price after tax and tax rate to calculate the original price before tax.

Price After Tax

$

Tax Rate

%
Enter the price before tax and after tax to calculate the tax rate.

Price Before Tax

$

Price After Tax

$
Total Price
$0.00

Breakdown

Price Before Tax: $0.00
Tax Rate: 0%
Tax Amount: $0.00
Price After Tax: $0.00

About Sales Tax Calculator

Calculate sales tax quickly and easily. Add tax to a price, remove tax from a total, or find the tax rate between two prices.

What is Sales Tax?

Sales tax is a consumption tax imposed by the government on the sale of goods and services. It's typically calculated as a percentage of the purchase price and collected by the retailer at the point of sale.

How to Use

Add Sales Tax

Calculate the final price including tax when you know the original price and tax rate.

Example: Item costs $100, tax rate is 8%
Tax Amount = $100 × 8% = $8
Final Price = $100 + $8 = $108

Remove Sales Tax

Find the original price when you know the total price with tax included.

Example: Total price is $108, tax rate is 8%
Original Price = $108 / 1.08 = $100
Tax Amount = $108 - $100 = $8

Calculate Tax Rate

Determine the tax rate when you know both the original and final prices.

Example: Original $100, Final $108
Tax Amount = $108 - $100 = $8
Tax Rate = ($8 / $100) × 100 = 8%

Sales Tax Formulas

  • Tax Amount: Price × (Tax Rate / 100)
  • Price After Tax: Price + Tax Amount
  • Price Before Tax: Price After Tax / (1 + Tax Rate/100)
  • Tax Rate: (Tax Amount / Price Before Tax) × 100

US State Sales Tax Rates

Sales tax rates vary by state and locality. Here are the base state rates (local taxes may apply):

State Tax Rate State Tax Rate
Alaska 0% Alabama 4%
Arkansas 6.5% Arizona 5.6%
California 7.25% Colorado 2.9%
Connecticut 6.35% Delaware 0%
Florida 6% Georgia 4%
Hawaii 4% Idaho 6%
Illinois 6.25% Indiana 7%
Iowa 6% Kansas 6.5%
Kentucky 6% Louisiana 4.45%
Maine 5.5% Maryland 6%
Massachusetts 6.25% Michigan 6%
Minnesota 6.875% Mississippi 7%
Missouri 4.225% Montana 0%
Nebraska 5.5% Nevada 6.85%
New Hampshire 0% New Jersey 6.625%
New Mexico 5.125% New York 4%
North Carolina 4.75% North Dakota 5%
Ohio 5.75% Oklahoma 4.5%
Oregon 0% Pennsylvania 6%
Rhode Island 7% South Carolina 6%
South Dakota 4.5% Tennessee 7%
Texas 6.25% Utah 6.1%
Vermont 6% Virginia 5.3%
Washington 6.5% West Virginia 6%
Wisconsin 5% Wyoming 4%