Idaho's statewide sales tax rate is 6%, and local taxes add an average of 0.03% for a combined average of 6.03% (Tax Foundation, rates as of July 1, 2026). Add tax to a price or work backward from a receipt below.
Rates are 2026 state rates plus population-weighted average local rates; your city or county may differ, and some items (like groceries) are taxed differently.
Sales tax on common purchases in Idaho
At the average combined rate of 6.03%, every $100 you spend carries $6.03 in sales tax. Where the highest local rate applies, the total rate is 9%, or $9.00 per $100. Rates are population-weighted averages, so your city or county may differ slightly — enter its exact rate in the calculator for a precise total.
Idaho sales tax at the average combined rate (6.03%)
Price
Sales tax
Total
Total at 9%
$10.00
$0.60
$10.60
$10.90
$25.00
$1.51
$26.51
$27.25
$50.00
$3.02
$53.02
$54.50
$100.00
$6.03
$106.03
$109.00
$500.00
$30.15
$530.15
$545.00
$1,000.00
$60.30
$1,060.30
$1,090.00
Working backward from a receipt
To find the price before tax, divide the total by 1 plus the rate: in Idaho, a $100.00 receipt at 6.03% breaks down into $94.31 of merchandise and $5.69 of tax. That is handy for expense reports and for checking a receipt that only shows the total.
Price before tax for tax-inclusive totals in Idaho (6.03%)
Total paid
Price before tax
Tax included
$10.00
$9.43
$0.57
$25.00
$23.58
$1.42
$50.00
$47.16
$2.84
$100.00
$94.31
$5.69
$500.00
$471.56
$28.44
$1,000.00
$943.13
$56.87
How Idaho compares with neighboring states
Idaho's 6% state rate ranks 17th of the 50 states and DC, and its combined average ranks 37th (1st = highest in both). On a $1,000 purchase at average rates, buying in Idaho instead of Washington saves about $35.40 in sales tax.
Sales tax rates in Idaho and neighboring states (July 1, 2026)
Which goods are taxable differs by state: groceries, prescription drugs and clothing are often exempt or taxed at a reduced rate, while prepared food and general merchandise usually pay the full rate. Check unusual purchases against the state's current rules.