How Idaho Sales Tax Works
Idaho's state government imposes a 6.00% sales tax on most retail purchases. Counties, cities, and special districts can layer additional local sales tax on top — pushing combined rates to a population-weighted average of 6.03% statewide.
Idaho is one of the few states that taxes groceries at full rate but offsets the cost through an income tax credit — effectively making lower-income groceries tax-free.
Groceries in Idaho
Idaho taxes groceries at the full 6% rate but offers a Grocery Tax Credit on state income tax returns to offset it ($120/person in 2024, more for seniors).
How Idaho Compares to Neighboring States
Sales tax on a $1,000.00 purchase in Idaho versus neighboring states, using each state's average combined rate (state + local):
| State | State Rate | Combined Rate | Tax on $1,000 | vs. Idaho |
|---|---|---|---|---|
| Idaho (here) | 6.00% | 6.03% | $60.30 | — |
| Washington | 6.50% | 9.40% | $94.00 | +$33.70 |
| Oregon | None | None | $0.00 | -$60.30 |
| Nevada | 6.85% | 8.24% | $82.40 | +$22.10 |
| Utah | 4.85% | 7.30% | $73.00 | +$12.70 |
| Wyoming | 4.00% | 5.44% | $54.40 | -$5.90 |
A negative "vs." figure means a lower sales tax bill on the same purchase. Specific addresses can vary materially from the state-wide average.
Frequently Asked Questions
What is the Idaho sales tax rate for 2026?
Idaho's state sales tax rate is 6.00% for 2026. When combined with the average local sales tax of 0.03%, most Idaho residents pay a typical combined rate of 6.03%.
How much sales tax will I pay on a $100 purchase in Idaho?
On a $100 purchase, expect approximately $6.00 in state sales tax, or about $6.03 including average local sales tax (combined 6.03%). Total cost: roughly $106.03.
Are groceries taxed in Idaho?
Idaho taxes groceries at the full 6% rate but offers a Grocery Tax Credit on state income tax returns to offset it ($120/person in 2024, more for seniors).
Is sales tax calculated before or after discounts in Idaho?
Idaho follows the standard rule used by virtually all states: sales tax is calculated on the final discounted price, not the original price. If a $200 item is on sale for $150, you pay sales tax on $150. Manufacturer coupons can be treated differently in some states.
How is this Idaho sales tax estimate calculated?
The calculator applies Idaho's 6.00% state sales tax rate plus whatever local rate you enter (city + county + special districts). The default Local Rate is 0%; click a city in the table above to fill in its local portion, or look up your specific address with Idaho's Department of Revenue tool.