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Starting a Business in Idaho

Idaho's the cheapest PNW state to start in — $100 LLC, low taxes, light paperwork.

5 min read Updated April 22, 2026Compiled & reviewed by PNW Small Business editorial team Last verified July 27, 2026

Informational only. This guide is general information for Pacific Northwest business owners and customers — not individualized legal, tax, or financial advice. Rules, fees, and rates change. Confirm details with the official sources listed below or with a licensed professional before acting.

Why Idaho is friendly to launch in

Flat 5.8% income tax, $100 LLC, no franchise tax, and a state government that genuinely tries to make filings simple.

Step 1: File the LLC ($100)

Use sosbiz.idaho.gov — online filing is usually approved in 1 business day.

Step 2: EIN from the IRS

Free, instant.

Step 3: Idaho State Tax Commission

Register at tax.idaho.gov for sales tax (6%) and withholding if you'll hire.

Step 4: Local licensing

Boise, Meridian, Coeur d'Alene, and Idaho Falls require basic business licenses — usually $25–75.

Step 5: Contractor registration

ICB registration is required for most construction trades ($45/yr), plus L&I-equivalent workers' comp through Idaho Industrial Commission.

→ Next: Pricing your services in the PNW.

Common questions

How do I register a business in Idaho?+

File your entity with the Idaho Secretary of State, then register with the State Tax Commission for a seller's permit if you sell taxable goods. Construction contractors register with the Idaho Division of Occupational and Professional Licenses.

Does Idaho require a general business license?+

Idaho has no single statewide general business license. Requirements come from your industry and your city or county — check both before opening.

Idaho pros in our directory

Browse verified Pacific Northwest businesses in these categories.

Official sources

Free for locals