Starting a Business in Idaho: Licenses & Permits (2026)

Last updated: February 26, 2026

Starting a business in Idaho means registering with the Secretary of State, setting up the right tax accounts, and securing industry-specific licenses before you open. Idaho is a business-friendly state: LLC formation costs $103 online, the annual report is free, and the flat income tax rate was reduced to 5.3% in 2025. Workers’ compensation rates dropped again in 2026 – the ninth straight year of cuts. This guide walks through every step using official Idaho sources so you know exactly what you need, what it costs, and where to apply.

How to Start a Business in Idaho (Step by Step)

Step 1: Choose Your Business Structure

Most small business owners in Idaho choose between a sole proprietorship, a Limited Liability Company (LLC), or a corporation. An LLC is the most popular choice because it limits personal liability and is taxed as a pass-through entity by default.

Sole Proprietorship: No state registration required. Simplest structure, but you are personally liable for all business debts. If you operate under a name other than your legal name, file an Assumed Business Name (DBA) with the Secretary of State.
LLC: Formed through the Idaho Secretary of State via the SOSBiz portal. Provides liability protection. Formation fee: $103 online ($120 by mail). Annual report: free, due by the last day of your LLC’s anniversary month each year.
Corporation: More complex governance. Idaho corporate income tax applies at a flat 5.3%. Consult an attorney if you plan to raise outside investment.

The Idaho Secretary of State’s SOSBiz e-filing portal is your starting point: sos.idaho.gov/business-services.

Step 2: Register Your Business

If you form an LLC or corporation, file with the Idaho Secretary of State (SOS). Idaho strongly recommends online filing through SOSBiz – paper filings incur a $20 additional processing fee.

Certificate of Organization (LLC): File online at the SOSBiz portal. Filing fee: $103. Processing is immediate for online submissions. Paper filing: $120 + $20 manual processing fee = $140.
Annual Report: LLCs file an annual report each year by the last day of the anniversary month of their formation. Fee: $0 (free). File online through SOSBiz. If not filed within 60 days of the deadline, the LLC may be administratively dissolved. There is no late fee, but dissolution is the consequence.
Registered Agent: Every Idaho LLC must maintain a registered agent with a physical Idaho street address (no P.O. boxes or commercial mail boxes). The registered agent may be an Idaho resident individual or a business entity registered with the SOS. Commercial registered agent services typically cost $49-$150/year.
Assumed Business Name (DBA): If you operate under a name other than your LLC’s legal name, file a Certificate of Assumed Business Name with the SOS. Fee: $25 online ($45 by mail). A DBA in Idaho does not expire and does not require renewal – file once and it stands indefinitely. Amendment fee: $10.
EIN (Federal): Apply for a free Employer Identification Number from the IRS at irs.gov. Required for multi-member LLCs, all entities with employees, and recommended for any LLC opening a business bank account.

Step 3: Get Required Licenses & Permits

Idaho does not have a general statewide business license. Licensing is handled at two levels: state-level occupational licenses from the Idaho Division of Occupational and Professional Licenses (DOPL), and local licenses from your city or county. Common requirements include:

Food service / mobile food: Local health district permit required. Idaho is divided into health districts – your local district oversees food establishment permits for food trucks and restaurants.
HVAC contractors: Idaho DOPL HVAC Board license required at all levels (apprentice, journeyman, contractor). Administered by the Idaho Division of Building Safety / DOPL.
Cosmetology / hair salons: Idaho DOPL Barber and Cosmetology Services Licensing Board licenses required for both individual cosmetologists and salon establishments.
Childcare / daycare: Idaho Department of Health and Welfare / IdahoSTARS childcare license required.
Landscaping (pesticide application): Idaho State Department of Agriculture (ISDA) Professional Pesticide Applicator License required for any pesticide application on another person’s property for compensation.
Private investigators: No state PI license required in Idaho. Idaho is one of only a handful of states with no mandatory PI licensing. Local city or county business license only.

Many Idaho cities and counties require a local business license before you begin operations. Contact your city hall or county clerk for the current fee schedule and requirements.

See the industry-specific guides below for complete licensing details for each business type.

Step 4: Register for State Taxes

Idaho taxes are administered by the Idaho State Tax Commission. Register online at tax.idaho.gov.

Sales Tax: The Idaho state sales tax rate is 6% on retail sales of tangible personal property. Some cities impose a local option tax of up to 3%, making the combined rate as high as 9% in some jurisdictions. Register for a sales tax permit through the Tax Commission at no cost. Note: residential cleaning services are not taxable in Idaho. More info: tax.idaho.gov/taxes/sales-use.
State Income Tax (2026): Idaho uses a flat 5.3% income tax rate for both individuals and corporations (reduced from 5.695% effective January 1, 2025). LLC members pay Idaho income tax on their share of business income at this rate. C-corporations pay corporate income tax at the same 5.3% flat rate. More info: tax.idaho.gov/taxes/income-tax.
Employer Withholding: If you have employees, register for Idaho state income tax withholding through the Tax Commission.
Unemployment Insurance (UI): Register with the Idaho Department of Labor at labor.idaho.gov. New employer UI tax rates vary – contact Idaho DOL for your initial rate assignment. The taxable wage base is reviewed annually. More info: labor.idaho.gov/businesses/unemployment-tax.
New Hire Reporting: Report all new and rehired employees to Idaho within 20 days of hire. Report online at labor.idaho.gov/businesses/new-hire-reporting.

Step 5: Get Business Insurance

Idaho requires workers’ compensation coverage for any employer with 1 or more employees, whether full-time, part-time, seasonal, or occasional. This is one of the broadest thresholds in the country – there is no small business exemption based on employee count. Coverage must be in place before the first employee is hired.

Exception: Family members of business owners who are sole proprietors or single-member LLCs (taxed as sole proprietorships) are automatically exempt from workers’ comp requirements, but only if the family member resides with the owner.

Workers’ compensation rates in Idaho dropped 2.5% effective January 1, 2026 – the ninth consecutive year of rate reductions, according to the Idaho Department of Insurance. Non-compliant employers face fines of up to $25 per day and the offense is classified as a misdemeanor. The Idaho Industrial Commission administers workers’ comp: iic.idaho.gov, phone: 208-334-6000.

Idaho Business Guides by Industry

Choose your industry for a detailed breakdown of every license, permit, and requirement:

Idaho Business Resources & Official Links

Frequently Asked Questions

How much does it cost to form an LLC in Idaho?

Filing a Certificate of Organization with the Idaho Secretary of State costs $103 online or $120 by mail (plus a $20 manual processing fee for paper). After formation, Idaho LLCs file an annual report each year by the last day of their anniversary month at no cost. You also need a registered agent; commercial services typically run $49-$150/year. Total first-year cost is typically $150-$250.

Does Idaho require a general statewide business license?

No. Idaho has no general statewide business license requirement. However, many cities and counties in Idaho require a local business license before you can operate. Contact your city hall or county clerk for current requirements and fees. Many regulated industries also require state-level occupational licenses through the Idaho DOPL or other state agencies.

What is Idaho’s state income tax rate for businesses in 2026?

Idaho uses a flat 5.3% income tax rate for both individuals and corporations as of January 1, 2025 (reduced from 5.695%). Idaho LLC members pay Idaho income tax on their share of business income at this flat rate. C-corporations pay the same 5.3% corporate income tax rate. Idaho has no franchise tax or gross receipts tax.

Does Idaho require workers’ compensation insurance?

Yes, and Idaho’s threshold is strict: any employer with 1 or more employees must carry workers’ compensation insurance before the first employee starts work. There is no small business exemption. Family members of sole proprietors or single-member LLC owners who reside with the owner are automatically exempt. Workers’ comp rates dropped 2.5% in 2026 – the ninth straight year of reductions. The Idaho Industrial Commission regulates coverage at iic.idaho.gov.

What is Idaho’s sales tax rate?

The Idaho state sales tax rate is 6% on taxable retail sales. Some cities and resort areas impose a local option sales tax, bringing the combined rate as high as 9% in some locations. Many services are not taxable in Idaho – notably, residential cleaning services are exempt. Register for a seller’s permit through the Idaho State Tax Commission at tax.idaho.gov at no cost.

How do I file a DBA in Idaho?

File a Certificate of Assumed Business Name online with the Idaho Secretary of State via the SOSBiz portal. The fee is $25 online ($45 by mail). Unlike most states, an Idaho DBA does not expire and does not require periodic renewal – the filing stands indefinitely until amended or cancelled. Cancellation is free. Amendment fee: $10.

Business Guides for All States

Browse LLC formation, licenses, and permit requirements for every U.S. state.

About the Author

Robert Smith has run a licensed private investigation firm for 8 years from the Florida-Georgia state line - where he learned firsthand how wildly business licensing rules differ between states just miles apart. He personally researched requirements across all 50 states and D.C., reviewing hundreds of government sources over hundreds of hours to build guides he wished existed when he started. Not a lawyer or accountant - just a business owner who has done the research so you don't have to.

Learn more about our research process