Do I need a sales tax permit in Idaho?

Every retailer engaged in business in Idaho must apply to the State Tax Commission for a seller's permit before conducting business in the state. Idaho calls the registration an Idaho seller's permit. For a seller outside Idaho, the economic nexus threshold is $100,000 in sales in the previous calendar year or the current calendar year. Idaho's own rule sets which sales count toward it and when registration must follow.

Sales tax permit · Idaho

How to Get an Idaho Seller's Permit

The short answer. In Idaho, the registration a business must hold before it makes sales subject to Idaho sales tax is an Idaho seller's permit, issued by the Idaho State Tax Commission. Idaho charges no fee for the seller's permit.

Idaho Seller's Permit at a Glance

What Idaho calls it	Idaho Seller's Permit
Issued by	Idaho State Tax Commission
How to apply	Online or paper
Fee	Free
Security deposit or bond	May be required
Expires	Depends (see Renewal)
Several locations	One for each location (see Locations)
Local sales tax	Depends (see Local taxes)
Threshold for sellers outside the state	$100,000 in sales

Read from the government sources listed at the foot of this page, last checked September 29, 2026. See the sources.

Who Needs an Idaho Seller's Permit

Every retailer engaged in business in Idaho must apply to the State Tax Commission for a seller's permit before conducting business in the state.

For a seller outside Idaho, the economic nexus threshold is $100,000 in sales in the previous calendar year or the current calendar year. Idaho's own rule sets which sales count toward it and when registration must follow.

How to Apply

You apply to the Idaho State Tax Commission. You can apply online or on a paper application. Go to Idaho's registration page.

Idaho requires your registration to be displayed at the place of business.

What It Costs

Idaho charges no fee for the seller's permit.

Idaho may require security, such as a bond or deposit. The Tax Commission can demand security when it considers it necessary to ensure compliance, for example after missed or short returns, a history of delinquency, a dishonored check, or serious financial instability. The amount is capped at three times your estimated average monthly tax or $10,000, whichever is less (five times for habitually delinquent sellers, still capped at $10,000).

Does It Expire?

A permit may be held only while you are actively making taxable sales, and you must surrender it if you stop. It also expires automatically, once the Tax Commission sends notice, if you report no sales for 12 consecutive months.

More Than One Location

A business needs a separate seller's permit for each place of business in Idaho. Locations that share a business name share one permit number. A location operating under a different business name needs its own Idaho Business Registration application and its own permit.

Local Sales Taxes in Idaho

Some Idaho resort cities levy their own local option sales tax, which each city collects under its own ordinance rather than through your state seller's permit. If you sell in one of those cities (the Tax Commission lists them, including Ketchum, McCall, Sandpoint and Sun Valley), contact the city directly.

Worth Knowing in Idaho

You apply through the Idaho Business Registration system, which also issues withholding and other state tax permits. The Tax Commission says to register your business with the Idaho Secretary of State before applying.

More for Idaho Businesses

Idaho resale certificate, for buying inventory for resale.
Sales tax nexus checker, to see which other states your sales may require you to register in.
Idaho LLC guide, for forming and running an LLC in the state.
LLC guide for eBay sellers in Idaho, for selling only through a marketplace.

Frequently Asked Questions

: Every retailer engaged in business in Idaho must apply to the State Tax Commission for a seller's permit before conducting business in the state. Idaho calls the registration an Idaho seller's permit. For a seller outside Idaho, the economic nexus threshold is $100,000 in sales in the previous calendar year or the current calendar year. Idaho's own rule sets which sales count toward it and when registration must follow.
: Idaho charges no fee for the seller's permit. Idaho may require security, such as a bond or deposit. The Tax Commission can demand security when it considers it necessary to ensure compliance, for example after missed or short returns, a history of delinquency, a dishonored check, or serious financial instability. The amount is capped at three times your estimated average monthly tax or $10,000, whichever is less (five times for habitually delinquent sellers, still capped at $10,000).
: A permit may be held only while you are actively making taxable sales, and you must surrender it if you stop. It also expires automatically, once the Tax Commission sends notice, if you report no sales for 12 consecutive months.
: A business needs a separate seller's permit for each place of business in Idaho. Locations that share a business name share one permit number. A location operating under a different business name needs its own Idaho Business Registration application and its own permit.
: Some Idaho resort cities levy their own local option sales tax, which each city collects under its own ordinance rather than through your state seller's permit. If you sell in one of those cities (the Tax Commission lists them, including Ketchum, McCall, Sandpoint and Sun Valley), contact the city directly.

This guide is general information, not legal or tax advice, and reading it does not create an attorney-client relationship. It reports what each state's law and tax agency say about the registration a business holds before it makes taxable sales, with the sources this page cites. It cannot tell you whether your own business must register: that turns on what you sell, where you sell it from, and how much you sell into the state, and fees, security rules and thresholds change between our reviews. Confirm your own position with the tax agency named on this page before you start selling.

Sources

Each entry below is a document recorded in our verified Idaho sources, and each entry says what the document is. Some statutory text is read from an accurate mirror rather than from the state's own host, and those say so.

legislature.idaho.gov/statutesrules/idstat/title63/t63ch36/sect63-3620/Idaho Code 63-3620, Permits: issuance, revocation, penalties
legislature.idaho.gov/statutesrules/idstat/title63/t63ch36/sect63-3620a/Idaho Code 63-3620A, Revocation, suspension or expiration of permits held by persons not actively engaged in business
legislature.idaho.gov/statutesrules/idstat/title63/t63ch36/sect63-3611/Idaho Code 63-3611, Retailer engaged in business in this state
legislature.idaho.gov/statutesrules/idstat/title63/t63ch36/sect63-3625/Idaho Code 63-3625, Security for tax
adminrules.idaho.gov/rules/current/35/350102.pdfIDAPA 35.01.02, Idaho Sales and Use Tax Administrative Rules (rules 070 and 116)
legislature.idaho.gov/statutesrules/idstat/title50/t50ch10/sect50-1046/Idaho Code 50-1046, City local-option nonproperty taxes
legislature.idaho.gov/statutesrules/idstat/title50/t50ch10/sect50-1047/Idaho Code 50-1047, General provisions (resort city taxes)
tax.idaho.gov/taxes/sales-use/permits/permits/Idaho State Tax Commission: Regular Seller's Permit
tax.idaho.gov/taxes/sales-use/permits/who-needs-a-sellers-permit/Idaho State Tax Commission: Who Needs a Seller's Permit?
tax.idaho.gov/online-services/business-registration/Idaho State Tax Commission: Getting Tax Permits
tax.idaho.gov/taxes/sales-use/sales-tax/local-sales-tax/city-sales-tax/Idaho State Tax Commission: City Sales Taxes

More for Idaho LLCs

Start and set up

Taxes, money and growth

Stay compliant

Operate in other states

Compare structures

By owner type

By profession

Edmond Hui · Founder, MyStateLLC

Edmond Hui is a software engineer and serial entrepreneur based in New York who has founded multiple online businesses across e-commerce, media, and information publishing. Before transitioning into tech, he spent years as a commercial real estate professional closing deals totaling over 100,000 square feet, giving him firsthand experience with business formation and entity structuring. He built MyStateLLC to provide the free, state-specific LLC guidance he wished existed when forming his own companies.