Arizona Reverse Sales Tax Calculator
Arizona's sales tax situation is more complex than most states because Arizona calls its sales tax a "Transaction Privilege Tax" (TPT) — and technically, it's a tax on the seller's privilege of doing business, not directly on the buyer. Practically speaking, sellers pass it on to customers, so it functions exactly like a standard sales tax. The state rate is 5.6%, with cities and counties adding their own levies on top.
Phoenix is at 8.6%, Tucson at 8.7%, Mesa at 8.3%, Scottsdale at 8.05%, and Tempe at 8.1%. The statewide average is around 8.4%. If you're working with Arizona receipts from the Phoenix metro area, the rate varies by city — check the city portion carefully. The Arizona Department of Revenue has a rate lookup tool that's helpful for precise work.
Current Arizona Sales Tax Rates
| Component | Rate |
|---|---|
| State rate | 5.60% |
| Average local rate | 2.80% |
| Average combined rate | 8.40% |
| Location | Combined Rate |
|---|---|
| Phoenix | 8.60% |
| Tucson | 8.70% |
| Mesa | 8.30% |
| Scottsdale | 8.05% |
| Tempe | 8.10% |
What's Taxable in Arizona
Arizona exempts unprepared food (groceries) from the state TPT rate, but cities can still tax food at their local rates — so your grocery total might still have some tax on it. Prescription drugs are exempt. Restaurant meals and prepared food are taxable at the full combined rate. Arizona also taxes some services under the TPT framework that other states might not.
Worked Example
You bought tools in Phoenix for a home project. Total on the receipt: $156.22 at Phoenix's rate of 8.6%.
$156.22 ÷ 1.086 = $143.85 (pre-tax price)
$156.22 − $143.85 = $12.37 (tax amount)
That's $12.37 in sales tax on a $143.85 purchase before tax. The main calculator handles this automatically — enter the total and select your rate, and the pre-tax price and tax amount appear instantly.
Frequently Asked Questions
Phoenix has a combined rate of 8.6% — 5.6% state TPT, 0.7% Maricopa County, and 2.3% City of Phoenix. This can catch people off guard compared to nearby Scottsdale (8.05%) or Tempe (8.1%). For Phoenix purchases, divide your total by 1.086 to find the pre-tax price.
Arizona's Transaction Privilege Tax (TPT) is the state's version of a sales tax. Technically it's a tax on the business for the privilege of making retail sales in the state, but businesses pass the cost to customers just like a regular sales tax. The state rate is 5.6%, plus city and county add-ons. For reverse calculation purposes, it works exactly the same as any other sales tax.
Unprepared food is exempt from Arizona's state TPT. However, Arizona cities can still impose their own tax on food — and many do. So your grocery receipt in Phoenix or Tucson might show a small amount of tax (just the city portion). Prepared food, restaurant meals, and fast food are taxable at the full combined rate.
Divide your total by (1 + rate as a decimal). For Phoenix at 8.6%: $156.22 ÷ 1.086 = $143.85 pre-tax. Tax = $156.22 − $143.85 = $12.37. For Tucson at 8.7%, divide by 1.087. For Scottsdale at 8.05%, divide by 1.0805. Use the custom rate field in the calculator if your receipt shows a different rate.