Idaho LLC Cost: Filing Fee, Annual Fees and 5-Year Total
Forming an LLC in Idaho costs $100 in state filing fees and has no recurring state fee in our data. Idaho's estimated five-year state costs of $100 are 70% below the 51-jurisdiction median of $335.
Checked against official state sources (October 2026) · Last verified: October 28–29, 2026 · Sources
What an LLC costs in Idaho
| Item | Amount | Notes |
|---|---|---|
| Formation filing fee | $100 | One time |
| Recurring state filing / report fee | $0 | Annual report, free when filed online |
| Year-one cost | $100 | Formation fee + any year-one extra |
| Estimated 5-year state costs | $100 | Formation + year-one extras + 4 years of filing / report fees; ranks 6th cheapest of 51 |
The five-year figure counts state government fees and, where one applies, the separate mandatory annual state tax shown above. It assumes a single-member LLC owned by an individual with little or no income. It excludes registered agent services, formation-service fees, publication costs, local business licenses, income-based state taxes (income, gross-receipts, B&O, sales) and any optional extras. How we calculate it.
Verified details
- Certificate of Organization: $100 online; paper filings add a $20 manual processing fee ($120).
- Annual report: due by the end of the month in which the LLC's certificate became effective. It is free online via SOSBiz; paper filings carry the $20 processing fee.
Annual reports and upkeep
Idaho filing cadence: Annual (end of anniversary month). Annual report, free when filed online. Missing filings can lead to late fees and, eventually, administrative dissolution, so put the dates in a calendar. See annual reports and franchise taxes explained.
How to form an LLC in Idaho
- Check the name. Search the Idaho business records on the Secretary of State / filing office site to confirm your LLC name is available and includes an LLC designator.
- Pick a registered agent. Every state requires a registered agent with a physical street address in the state. You can serve as your own agent if you live in Idaho and are reachable during business hours, or hire a commercial agent. Registered agent guide.
- File the formation document. The state filing fee is $100. Use the state's online filing portal where available; paper filing is slower.
- Write an operating agreement. Most states do not require you to file one, but banks and partners typically ask for it, and it sets ownership and decision rules. Operating agreement basics.
- Get an EIN. The IRS issues EINs for free through its online application. Beware of sites that charge for it.
- Open a business bank account and calendar the deadlines. Put the annual (end of anniversary month) filing dates in a calendar so the LLC stays in good standing.
Want someone else to handle the filing in Idaho?
A formation service files the paperwork for a fee on top of the state fee and often includes a first year of registered agent service. It saves time, but you can file directly with the state for the state fee alone. Compare DIY and services.
See a formation service (partner link) Sponsored
Living or operating outside Idaho?
You can form an LLC in Idaho even if you live elsewhere, but if you actually do business in your home state you will usually also have to register the LLC there as a foreign LLC and pay that state's fees, so you may pay twice. In Texas, for example, an out-of-state LLC transacting business pays $750 to register. See forming an LLC in a state other than your own.
Compare Idaho with similar-cost states
Frequently asked questions
How much does it cost to start an LLC in Idaho?
The state filing fee is $100. Add a registered agent if you do not serve as your own, plus any local licenses.
What is the annual cost of an LLC in Idaho?
Annual report, free when filed online. Other taxes or local fees may still apply.
Do I need a registered agent in Idaho?
Yes. Idaho requires every LLC to maintain a registered agent with a physical address in the state. You may act as your own agent if you meet the state's requirements.
Do I need an operating agreement in Idaho?
Most states do not make you file one, but you should have one. Check Idaho's LLC statute and ask your bank what it requires. We do not give legal advice.
Is Idaho cheap compared with other states?
Idaho's estimated five-year state costs of $100 are 70% below the 51-jurisdiction median of $335.
Sources
- Idaho official filing site: sos.idaho.gov
- ID SOS: business forms
- Idaho Code 30-21-213
- ID SOS: business FAQ
Fees change. Confirm the amount on the state's official page before you file.
Fee data: official state government pages and statutes (checked October 28–29, 2026); sources are linked on each state page. See our methodology. Not legal or tax advice.