How to calculate Arizona sales tax
Multiply the price by the combined rate. At the 5.6% state rate, a $250.00 sale carries $14.00 of sales tax, for a total of $264.00. Add the county, city or district rate for the delivery address to get the full rate for that sale.
To find the tax inside a total that already includes it, divide the total by 1 plus the rate. A $107.00 receipt at 5.6% is $101.33 before tax and $5.67 of tax.
