Sales tax by state · Idaho
Idaho Sales Tax Rate
The statewide sales tax in Idaho is 6%, the 8th-highest statewide rate (tied with 10 other states). Here’s how that compares nationally and what you pay in the state’s major cities.
- Idaho state rate 6% statewide base rate
- National rank 8th of 51, highest first
- Boise combined 6% state + local, ZIP 83702
- Tax on $100 $6.00 in Boise
Sales tax in Idaho
Idaho charges a statewide sales tax of 6%, 0.98 percentage points above the 5.02% average across all states. In the cities sampled for this study, no local tax is added, so the state rate is what shoppers pay.
Combined rates in Idaho’s major cities
The combined rate for one downtown ZIP code in each city, broken down by who charges it:
| City | State | County | City | Special | Combined |
|---|---|---|---|---|---|
| Boise 83702 | 6% | 0% | 0% | 0% | 6% |
| Idaho Falls 83402 | 6% | 0% | 0% | 0% | 6% |
What sales tax adds in Boise
At the 6% combined rate in Boise, sales tax adds:
For any other address in Idaho, enter its ZIP code in the sales tax calculator to get the exact combined rate.
How Idaho compares
Among all 51 states and DC, Idaho’s 6% is the 8th-highest statewide rate (tied with 10 other states). The average statewide rate is 5.02%, and the highest is California’s 7.25%. See every state ranked on sales tax by state.
Idaho sales tax — FAQ
What is the sales tax rate in Idaho?
The statewide sales tax rate in Idaho is 6%. That is the 8th-highest statewide rate (tied with 10 other states) and 0.98 percentage points above the 5.02% average across all states. Local taxes can add more depending on where you shop.
What is the sales tax in Boise, Idaho?
The combined sales tax rate in downtown Boise (ZIP 83702) is 6%: 6% state. Rates in other parts of the city can differ.
How do I calculate sales tax in Idaho?
Multiply the price by the combined rate where you buy. In Boise, a $100 purchase carries $6.00 in tax (6%), for $106.00 total. For any other location, enter the ZIP code in the sales tax calculator.
Is Idaho's sales tax high compared with other states?
Among all 51 states and DC, Idaho’s 6% is the 8th-highest statewide rate (tied with 10 other states), 0.98 percentage points above the 5.02% average across all states. The highest is California’s 7.25%.
Rates as of September 2026. City rates are for one downtown ZIP code and can differ elsewhere in the city.
Data: State departments of revenue, via APIVerve. Our tables, charts and text are licensed CC BY 4.0: reuse them freely, including commercially, as long as you credit us. Cite as: Digest Your Finances, “Sales Tax by State”, https://digestyourfinances.com/studies/sales-tax-by-state/idaho/ — based on State departments of revenue. CC BY 4.0.
