How to Start an LLC in Idaho
Form your Idaho LLC online with transparent pricing, registered agent service and real human support. Incofile prepares and files your Certificate of Organization for you.
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Idaho LLC filing fee & timeline
To form an LLC in Idaho you file your Certificate of Organization with the state and pay the state filing fee of $100 online (or $120 on paper). Incofile adds a flat, one-time service fee on top — no monthly charges — and your total is always shown before you pay.
Most Idaho LLC filings are prepared and submitted within one business day. State approval time depends on Idaho's current processing queue, typically ranging from a few business days to a few weeks, with expedited options available in many states.
Why form an LLC in Idaho
Idaho is one of the cheapest states to keep an LLC running: the annual report is free, there is no state business licence and no franchise tax, and online filings through SOSBiz are approved immediately. The state fee is $100 online or $120 on paper.
Idaho LLC at a glance
| State filing fee | $100 online · $120 on paper |
|---|---|
| Document filed | Certificate of Organization |
| Standard approval time | Immediate online · about 15–20 days on paper |
| Expedited options | +$40 within 8 working hours · +$100 same day (state fees) |
| Annual report | Free, due by the last day of your anniversary month |
| Late penalty | No fee; administrative dissolution after a 60-day notice |
| Name reservation (optional) | $20 online, holds the name for 120 days |
| State income tax | Flat 5.3% on owners’ share of profit |
| Registered agent | Required; an Idaho resident or registered entity at a physical Idaho street address |
State figures checked against the Idaho Secretary of State, Business Services Division, September 2026. State fees are set by Idaho and can change; the exact total is shown before you pay.
How much does it cost to start an LLC in Idaho?
| Cost | Amount | When |
|---|---|---|
| Certificate of Organization (state filing fee) | $100 online · $120 on paper | Required, one time |
| Registered agent | $0 if you act as your own agent at a Idaho street address; otherwise a registered agent service | Required, ongoing |
| Annual report | Free | Required every year by the end of your anniversary month |
| Permanent Building Fund tax | $10 per Idaho income tax return filed | Annual, on the tax return |
| EIN from the IRS | Free from the IRS | Needed for a bank account and taxes |
| Name reservation | $20 online for 120 days | Optional |
| Expedited processing | +$40 (8 working hours) · +$100 same day | Optional |
These are state, IRS and other outside costs — not Incofile fees. Your Incofile package price is shown separately at checkout, and your full total is always shown before you pay. Estimate every cost for your state with our LLC cost calculator.
How to form an LLC in Idaho — 4 steps
Choose your package
Pick the Incofile package that fits your goals. Your Idaho state filing fee is shown before you pay.
Tell us about your LLC
Complete our short form with your company name, address and ownership details — about ten minutes.
We check & file with Idaho
We confirm your name is available and file your Certificate of Organization with the Idaho state office.
Get your documents
Your approved Idaho LLC documents land in your dashboard, with reminders for your annual report and other deadlines.
How to start an LLC in Idaho: step by step
Here is exactly what forming a Idaho LLC involves, whether you file it yourself or let Incofile handle the paperwork.
Choose and check your LLC name
Pick a name that includes “LLC” or “Limited Liability Company” and is distinguishable from existing Idaho businesses. Check it with our free business name search. You can reserve it for 120 days for $20.
Appoint a registered agent
Name a registered agent with a physical street address in Idaho (not a PO box) who can accept legal papers during business hours. If you live outside Idaho or want privacy, Incofile can act as your agent.
File the Certificate of Organization
File online through SOSBiz and pay $100 ($120 on paper). Online filings are processed immediately; paper filings take about 15–20 days unless expedited.
Create an operating agreement
Idaho does not require you to file an operating agreement, but it records who owns the LLC, how profits are shared and how decisions are made. Banks commonly ask for it, and it helps protect your limited liability.
Get an EIN
Apply to the IRS for your Employer Identification Number (EIN). You need it to open a business bank account, hire staff and file federal taxes. The IRS issues it free; non-US owners without an SSN apply by phone, fax or mail, and our Gold package handles it for you.
Register for taxes and local licences
Complete the Idaho Business Registration with the State Tax Commission to get a seller’s permit and withholding account if you need them. Idaho has no state business licence; check your city for a local one.
File your free annual report
File the annual report online by the last day of your anniversary month every year. There is no fee, but missing it starts a 60-day notice period before administrative dissolution.
What you need to form an LLC in Idaho
- A business name that is available and meets Idaho's naming rules (it must include “LLC” or “Limited Liability Company”).
- A registered agent with a physical address in Idaho — Incofile can be your agent.
- Certificate of Organization filed with the Idaho state office — we prepare and submit these for you.
- An operating agreement and EIN to open a business bank account (included in our Gold and Platinum packages).
- Ongoing compliance — Idaho's reports, taxes and registered agent rules (see below). We track the deadlines and remind you.
Operating agreement
An operating agreement sets out who owns the LLC, how profits are split, how decisions are made and what happens if a member leaves. Idaho does not ask you to file it with the state, but banks usually want to see it, and without one the state's default rules apply. Incofile includes a customised operating agreement in the Gold and Platinum packages.
EIN (Employer Identification Number)
Your EIN is the federal tax ID for your LLC. You need it to open a business bank account, hire staff and file taxes. The IRS issues it free — online in minutes if you have a Social Security number, or by fax or mail (one to eight weeks) if you don't. Our Gold and Platinum packages include it, and it is also available as a separate service.
This is general information, not legal advice. If you're unsure which structure is right, compare LLC vs S-Corp vs C-Corp.
Idaho LLC naming rules
The name must contain “Limited Liability Company” or an abbreviation such as “LLC” or “L.L.C.” and must be distinguishable from every other entity on the Idaho register. Check availability with our free business name search.
Keeping your Idaho LLC compliant
Annual report
Idaho’s annual report is free and due by the close of business on the last day of your anniversary month each year. Missing it triggers a 60-day notice, after which the LLC is administratively dissolved; reinstatement costs $30 online.
Registered agent
Your agent must be an Idaho resident or an entity registered with the Secretary of State, at a physical Idaho street address — no PO boxes or commercial mailboxes. Incofile can act as your Idaho registered agent.
Taxes
Idaho taxes owners’ share of LLC profit at a flat 5.3%. Everyone who files an Idaho return also pays a $10 Permanent Building Fund tax (the LLC itself pays it only for non-resident owners included on a composite return). There is no franchise tax on LLCs.
Licences
Idaho has no state business licence. Register with the State Tax Commission for a seller’s permit if you sell taxable goods, and check your city or county for local licences.
Incofile clients get every Idaho deadline tracked in their dashboard with email reminders — see registered agent service.
Idaho LLC — frequently asked questions
How much does it cost to start an LLC in Idaho?
Incofile charges a flat, one-time formation fee (Silver, Gold or Platinum) plus the Idaho state filing fee of $100. There are no monthly charges, and the total is shown before you pay.
How long does it take to form an LLC in Idaho?
We prepare and submit your Idaho Certificate of Organization within one business day. State approval times vary from a few business days to a few weeks; expedited filing is available in many states.
Do I need a registered agent in Idaho?
Yes. Idaho requires every LLC to have a registered agent with a physical address in the state to receive legal and state mail. Incofile can serve as your Idaho registered agent so you stay compliant and keep your address private.
Can I start an LLC in Idaho if I live in another state or country?
Yes. You do not need to live in Idaho to form an LLC there. Incofile can act as your registered agent and provide a business address, so you can form and run your Idaho LLC from anywhere.
How much does an Idaho LLC cost per year?
The state annual report is free, so the yearly state cost is $0 apart from the $10 Permanent Building Fund tax each owner pays with their Idaho return. Add a registered agent service if you use one.
How fast is an Idaho LLC approved?
Online filings through SOSBiz are processed immediately. Paper filings take about 15–20 days; expedited service costs $40 (8 working hours) or $100 (same day).
Does Idaho require a business licence?
No. Idaho has no state business licence, though some cities require a local one and regulated trades need a professional licence.
What is the Idaho income tax rate?
A flat 5.3% on Idaho taxable income, which includes each owner’s share of LLC profit.
Ready to launch your Idaho LLC?
Most orders are prepared and submitted within one business day.
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