Idaho Sales Tax Rates: 2026 County Guide
Complete sales tax breakdown for all 39 counties in Idaho. Select a county to see city-level rates and How-To guides.
Idaho Base State Tax Rate
| Jurisdiction | Rate |
|---|---|
| Idaho State Sales Tax | 6.000% |
| Total Combined Rate | 6.000% |
Idaho Sales Tax Rules, Local Rates and Nexus Notes
Data-rich guideFrom remote economic nexus thresholds to local special district levies, Idaho presents a multi-tiered sales tax system. Businesses and buyers should verify all applicable layers of tax and filing deadlines in the state.
To see how the numbers add up: The combined rate of 6.000% consists of a 6.000% state rate. This rate matches the estimated state average combined rate of 6.000% across local jurisdictions.
Retailers and e-commerce merchants shipping to Idaho's population of 1,839,106 face unique compliance demands due to the density of municipal boundaries. Cross-border shipping requires careful rate verification to ensure correct tax collection across distinct local zones.
Under Idaho guidelines, economic nexus is assessed on a statewide basis. Remote retailers need to track their total sales volume across the state to determine registration duties. Businesses must align their collection policies with statewide rules: Remote sellers meet economic nexus rules in ID if they reach $100,000 in gross sales or 200 separate transactions within a calendar year. Note that statewide tax holidays or clothing exemption rules may further modify your tax obligations. We recommend consulting a certified tax professional or Idaho state guides to confirm filing obligations.
Rate data last checked in the database: March 2026
Economic Nexus Threshold
Avg Local Tax Rate
State Nexus Checker
Use current state threshold data before you register or start collecting.
Nexus estimate
State Exemption Finder
Guide buyers and sellers toward the right official exemption paperwork path.
State Product Taxability Checker
Version 1 covers the tax categories already modeled in the current database.
State-aware estimate
Verify with official sourceAll 39 Idaho Counties
Ada
Adams
Bannock
Bear Lake
Benewah
Bingham
Blaine
Boise
Bonner
Bonneville
Boundary
Butte
Camas
Canyon
Caribou
Cassia
Clark
Clearwater
Custer
Elmore
Fremont
Gem
Idaho
Jefferson
Jerome
Latah
Lemhi
Lewis
Madison
Minidoka
Nez Perce
Oneida
Owyhee
Payette
Power
Teton
Twin Falls
Valley
Washington
Largest Cities in Idaho
These major city pages usually attract the strongest commercial intent and create more downstream tool usage.
Highest Tax Cities in Idaho
Comparison links like these help users move from broad state intent into more specific local rate pages.
Sales Tax Calculator
Using the current combined rate for Idaho.
Rate applied
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Selected location
Sales tax
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Taxable base:
Total due
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Effective rate:
Rounded to the nearest cent. Tax treatment of shipping and discounts can vary by state.
Sitewide Helper
Sales Tax Calculator & Compliance Helper
One compact utility block for tax calculation, reverse calculation, ZIP lookup, nexus checks, exemption guidance, and product taxability.
Advanced Sales Tax Calculator
Estimate tax with shipping, discounts, and exempt subtotal support.
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0.000%
Selected location
Sales tax
$0.00
Taxable base:
Total due
$0.00
Effective rate:
Rounded to the nearest cent. Tax treatment of shipping and discounts can vary by state.
Reverse Sales Tax Calculator
Work backward from the total paid to estimate the pre-tax price and tax amount.
Pre-tax price
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Tax amount
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ZIP / City Sales Tax Lookup
Search by ZIP code, city, county, or state to find current combined rates and local breakdowns.
Economic Nexus Checker
Compare your state-specific sales activity against current nexus thresholds using existing site data.
Nexus estimate
Should I Collect Sales Tax?
A fast intent-matching decision tree for businesses, marketplace sellers, and remote sellers.
Do you sell taxable goods or taxable services?
Do you sell into states outside your home state?
Have you crossed a nexus threshold in a destination state?
Do marketplaces handle most of your sales?
Do you have physical presence in the state?
Decision
Exemption Certificate Finder
Point buyers and sellers toward the right official portal and documentation checklist.
Product Taxability Checker
Version 1 uses the categories already modeled in the current database and always links back to official verification.
State-aware estimate
Verify with official source