Idaho LLC Filing Fees and Requirements
Forming an LLC in Idaho costs $100 online or $120 by paper. Learn the Certificate of Organization requirements, annual report rules, registered agent requirements, and other Idaho LLC fees.
Bizee Editorial Staff
Editorial Team
Idaho LLC key facts
Filing fee: $100 online / $120 by paper (mail or in person)
Processing time: [PROCESSING_TIME]
State agency: Idaho Secretary of State
Annual report due: By the last day of the LLC's anniversary month each year; $0 filing fee
State tax rate: No state-level LLC franchise tax; Idaho state income tax applies to members on their share of LLC income
Idaho LLC filing fees and formation requirements
Forming an LLC in Idaho requires filing a Certificate of Organization with the Idaho Secretary of State and paying a $100 state fee online, or $120 if you file by paper. Beyond the formation filing, you'll need a registered agent with an Idaho street address, and you'll file a free annual report each year to stay in good standing.
Idaho keeps its LLC formation costs low compared to many states — the $0 annual report fee is a detail that catches a lot of people off guard in a good way.
- Formation fee: $100 online, $120 by paper (includes $20 manual processing fee)
- Expedited processing: add $40 to the standard filing fee
- Annual report fee: $0 — due by the last day of your LLC's anniversary month each year
- Registered agent: required, must have a physical Idaho street address
- Operating agreement: not required by Idaho law, but recommended
Certificate of Organization requirements
To form an LLC in Idaho, you file a Certificate of Organization (Form 251) with the Idaho Secretary of State. You can file online through the SOSBiz system for $100, or by mail or in person for $120 — the extra $20 is a mandatory manual processing fee that applies to all paper filings. If you submit a paper form without including that $20, the state will reject it.
The Certificate of Organization must include your LLC's exact legal name, the street address of your principal office, and the name and Idaho street address of your registered agent. A P.O. box alone is not acceptable for the registered agent address. If you need same-day or 24-hour processing, add $40 to the filing fee.
Registered agent requirement
Every Idaho LLC must maintain a registered agent with a physical street address in Idaho. The registered agent receives service of process, legal documents, and official state correspondence on behalf of your LLC. Someone must be available at that address during normal business hours — a P.O. box does not meet the requirement.
You can serve as your own registered agent if you have an Idaho street address and can be there during business hours. Many business owners use a registered agent service instead — it keeps your personal address off public records and ensures nothing gets missed if you're away.
LLC name requirements
Your Idaho LLC's name must be distinguishable from all other active business names on file with the Idaho Secretary of State. It must include a designator — "Limited Liability Company," "Limited Company," or an abbreviation like "LLC" or "L.L.C." The name cannot imply a government affiliation or suggest services the business doesn't provide.
Check name availability through the Idaho Secretary of State's business search before filing. If a business is dissolved, its name stays protected for up to 6 months — so a name that looks available may not be.
Annual report requirement
Idaho LLCs must file an annual report with the Idaho Secretary of State every year the LLC is active. The filing fee is $0. The report is due by the last day of your LLC's anniversary month — the month your LLC was originally approved. Your first annual report is due in the calendar year after formation.
You can file the annual report online through the SOSBiz system. Missing the deadline can put your LLC out of good standing with the state, so mark the anniversary month on your calendar each year.
Employer Identification Number
An Employer Identification Number (EIN) is a federal tax ID issued by the IRS. You'll need one to open a business bank account, file federal taxes, and hire employees. Applying directly through the IRS is free and can be done online at irs.gov.
Idaho business licenses and permits
Idaho does not have a single statewide general business license, but your LLC may need licenses or permits depending on your industry, location, and the type of work you do. Requirements vary by city and county, and some industries — like food service, construction, or healthcare — have their own state-level licensing requirements.
The Idaho Department of Commerce's business portal is a good starting point for figuring out which licenses apply to your business. A tax professional or legal professional can help you sort through industry-specific requirements.
Operating agreement
Idaho does not require LLCs to have an operating agreement, and you don't file one with the state. That said, having one in place is worth doing — it documents how your LLC is owned, how decisions get made, and how profits are divided. Without one, Idaho's default LLC statutes govern those questions, which may not reflect what you actually want.
Foreign LLC registration
If your LLC is formed in another state but you want to do business in Idaho, you'll need to register as a foreign LLC with the Idaho Secretary of State. This is a separate filing from forming a domestic Idaho LLC and carries its own state fee. You'll also need to maintain a registered agent with an Idaho street address.
FAQ
It costs $100 to file a Certificate of Organization online with the Idaho Secretary of State. If you file by mail or in person, the total is $120 — the base $100 fee plus a mandatory $20 manual processing fee. Paper filings submitted without the $20 fee are rejected. Expedited processing adds another $40.
$0. Idaho does not charge a fee to file an LLC annual report. The report is due by the last day of your LLC's anniversary month each year and can be filed online through the SOSBiz system. Missing the deadline can put your LLC out of good standing, so it's worth tracking the due date.
Yes. Every Idaho LLC must have a registered agent with a physical street address in Idaho. The registered agent must be available during normal business hours to receive legal documents and official state notices. You can act as your own registered agent if you have an Idaho address, or you can use a registered agent service.
It depends. Idaho doesn't have a single statewide general business license, but your LLC may need licenses or permits based on your industry, city, or county. Some industries — like food service, healthcare, or construction — have state-level licensing requirements. Check the Idaho Department of Commerce's business portal and talk to a legal professional about your specific situation.
No. Idaho does not require LLCs to have an operating agreement, and you don't file one with the state. Even so, having one is worth doing — it spells out ownership percentages, decision-making authority, and how profits are split. Without one, Idaho's default LLC statutes fill in those gaps, which may not match what you and your co-owners actually agreed to.
Generally, yes. An Employer Identification Number (EIN) is required if your LLC has more than one member, hires employees, or elects to be taxed as a corporation. Even single-member LLCs with no employees benefit from getting one — you'll need it to open a business bank account and it keeps your Social Security number off business documents. Applying through the IRS is free.
We collect the Idaho state filing fee at cost and pay it directly to the Idaho Secretary of State on your behalf when we file your formation documents. You're not paying a markup — the state fee passes through to the state. Our formation fee is separate from the state fee.
The Idaho LLC filing fee in 2026 is $100 for online filings through the Idaho Secretary of State's SOSBiz system. Paper filings by mail or in person cost $120 — the $100 base fee plus a $20 manual processing fee. Expedited processing is available for an additional $40. These fees are set by the Idaho Secretary of State and are subject to change.
