Idaho taxes groceries at the full 6% state rate — unusual among Western states — but provides an annual Grocery Credit ($120/person) on state income tax returns to offset the burden on lower-income households. Local add-ons in Idaho are very small (averaging 0.03%), making the statewide rate nearly uniform at about 6%.
Idaho sales tax overview
| Component | 2026 Rate |
|---|---|
| State sales tax | 6.00% |
| Avg local add-on | 0.030% |
| Avg combined | 6.03% |
| Maximum combined | 9.00% |
Note: Idaho taxes groceries but provides a Grocery Credit on income tax returns ($120/person in 2026) to offset.
Idaho sales tax by city
Combined state + local sales tax rates for major cities in Idaho:
| City | Combined Rate |
|---|---|
| Boise | 6.00% |
| Meridian | 6.00% |
| Nampa | 6.00% |
What's exempt in Idaho
Groceries
Taxed at full 6.00% state rate plus any local sales tax.
Clothing & footwear
Taxed at standard rate.
Prescription drugs
Exempt from sales tax (typical across most states).
How Idaho sales tax is calculated
Sales tax in Idaho is calculated by multiplying the pre-tax purchase price by the applicable combined rate. The formula is simple:
Sales Tax = Purchase Price × 6.03% (avg combined)
Total = Purchase Price + Sales Tax
The exact rate depends on where the purchase occurs — the state base rate (6.00%) plus any local city or county add-ons. Idaho allows local jurisdictions to add their own taxes, so the rate varies by location.
Quick calculation examples at average rate 6.03%:
$100 item
$6.03 tax
$106.03 total
$250 item
$15.07 tax
$265.07 total
$500 item
$30.15 tax
$530.15 total
$1,000 item
$60.30 tax
$1060.30 total
Additional tax-free items in Idaho
Beyond the standard exemptions, Idaho also provides sales tax relief on these categories:
Exemptions may have conditions. Always verify with the Idaho Department of Revenue for complete rules.
Idaho sales tax in context: rates, history, and neighbors
Idaho's 6% state sales tax has been unchanged since 2006 — among the most stable rates nationally. Local add-ons are minimal — Idaho restricts non-resort cities from imposing local sales tax. Resort cities (Ketchum/Sun Valley, McCall, Stanley) can add up to 3% on lodging and tourist purchases. Boise has no local tax. Idaho's unique grocery handling: groceries are taxed at full 6% rate, but residents receive a refundable Grocery Credit on income tax returns — $120/person in 2026 (higher for seniors) — designed to offset grocery tax burden. Compared to neighbors: Washington (~9.39% combined), Oregon (0%), Nevada (~8.25%), Utah (~7.34%), Wyoming (~5.44%), Montana (0%) — Idaho's 6% sits in the middle of the Mountain West range. The simplicity of Idaho's tax system is a notable advantage.
Online shopping & Idaho sales tax
Idaho enacted economic nexus in 2018 — sellers with $100,000+ in Idaho sales must collect Idaho sales tax. Idaho is not a member of the Streamlined Sales Tax (SST) Agreement, so multi-state sellers must register and file with Idaho separately. Marketplace facilitators collect and remit Idaho tax on third-party sales through their platforms.
Use Tax reminder: If you purchase taxable goods online from a seller who does NOT collect Idaho sales tax, you technically owe Use Tax — the same rate as sales tax, reportable on your Idaho state tax return. Use Tax enforcement on consumers is rare but the obligation exists for significant purchases.
How much Idaho sales tax on common purchases?
Using Idaho's average combined rate of 6.03%:
| Purchase | Price | Sales Tax | Total |
|---|---|---|---|
| Grocery cart | $150 | $9.04 | $159.04 |
| Clothing / shoes | $120 | $7.24 | $127.24 |
| Prescription drug | $80 | Exempt | $80.00 |
| Smartphone | $999 | $60.24 | $1059.24 |
| Laptop / tablet | $1,299 | $78.33 | $1377.33 |
| New car ($35,000) | $35,000 | $2110.50 | $37110.50 |
| Home appliance | $1,500 | $90.45 | $1590.45 |
| Restaurant meal | $60 | $3.62 | $63.62 |
Based on Idaho's average combined rate of 6.03%. Exact tax depends on city/county. Use our calculator above for specific locations and amounts.
Collecting sales tax in Idaho: business guide
If you sell goods or taxable services to Idaho customers, here's what you need to know:
- Registration: Register for a Idaho sales tax permit/license through the Idaho Department of Revenue before making your first taxable sale. Most states process registrations online within a few days.
- Economic nexus (online sellers): If you have $100,000+ in Idaho annual sales or 200+ transactions, you must collect Idaho sales tax even without a physical presence in the state — per South Dakota v. Wayfair (2018). You must collect both state (6.00%) and applicable local rates.
- Destination vs origin sourcing: Idaho uses destination-based sourcing for most sales — the tax rate where the buyer receives the goods applies. Always use the customer's delivery address to determine the rate.
- Filing frequency: Frequency depends on your Idaho sales volume — monthly for high-volume sellers, quarterly or annually for low-volume sellers. Check with the Idaho Department of Revenue for your specific filing schedule.
- Marketplace sales: If you sell through Amazon, Etsy, eBay, or similar platforms, the marketplace is required to collect and remit Idaho sales tax on your behalf — you don't need to collect it separately on marketplace transactions.
- Resale certificates: Businesses purchasing goods for resale can provide a Idaho resale certificate to suppliers to avoid paying sales tax on wholesale purchases. Keep copies of all resale certificates for audits.
Streamlined Sales Tax (SST): Idaho is not currently a member of the Streamlined Sales Tax (SST) Agreement — check Idaho Department of Revenue for filing specifics.
Idaho-specific business compliance details
Idaho businesses register with the Idaho State Tax Commission at tax.idaho.gov for an Idaho Seller's Permit (no fee). Filing frequency: monthly for most businesses, quarterly for smaller, annually for very small. Out-of-state sellers with $100,000+ in Idaho sales must collect Idaho tax (economic nexus, since 2018). Idaho is a Streamlined Sales Tax (SST) Agreement member — out-of-state sellers can use the SST registration for simplified compliance. Marketplace facilitators collect Idaho tax. Idaho uses destination-based sourcing. Penalties: 5% per month (capped at 25%) plus interest. Most Idaho businesses outside the resort cities only need to manage the single 6% state rate, making Idaho one of the easier states for sales tax compliance.
Idaho sales tax frequently asked questions
How does Idaho's Grocery Credit offset the sales tax on food?
Idaho taxes groceries at the full 6% rate, which is regressive — a greater burden on lower-income families. To compensate, Idaho allows every resident to claim a Grocery Credit on their state income tax return: $120 per person in 2026 (higher for those 65+). A family of four gets $480 credited against their income tax. This effectively offsets about $8,000/year in grocery spending at 6% tax ($480 ÷ 6% = $8,000) — reasonable for a modest household food budget.
What is the sales tax rate in Boise, Idaho?
Boise's combined sales tax rate is 6% — just the state rate, as Boise adds no local sales tax. Most of Idaho is similarly uniform at 6%, with very minor local add-ons in some resort areas. Sun Valley Resort area charges slightly higher rates for resort town levies. This makes Idaho a simple state for sales tax — 6% applies almost everywhere.
Does Idaho exempt prescription drugs from sales tax?
Yes — prescription drugs are fully exempt from Idaho sales tax. Over-the-counter medications, however, are taxable at the full 6% rate. Medical devices and equipment prescribed by a physician may qualify for exemption. Grocery-purchased vitamins and supplements are taxable at the standard food rate.