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Idaho LLC Overview | LLC School
Idaho LLC · Complete Guide · Check current official instructions

How to Start an LLC in Idaho (2026)

Idaho formation has a $100 base fee and $120 manual-paper total. The required Annual Report has no filing fee and is due in the anniversary-month cycle. A zero report fee does not eliminate taxes, permits, provider charges or other ongoing costs.

Ahmad AdilWritten by Ahmad Adil, LLC School · Check current official instructions
Downtown Boise and Idaho State Capitol with the Boise Foothills
Quick Answer

File through SOSBiz for the $100 base fee or use the $120 manual-paper route. Check actual acceptance and service conditions. The Annual Report is free and follows the anniversary-month deadline; licensing and taxes depend on activity, location, classification and owner circumstances.

Idaho LLC — Fast Facts
Filing fee
$100 online
Paper filing
$120
Processing
Check current queue and service conditions
Annual Report
$0
Report due
End of anniversary month
State income tax
5.3% effective2025; check applicable return year
Formation doc
Certificate of Org.
Your Idaho LLC — 8 Steps
★Overview1Name Search2Registered Agent3Certificate of Organization4Operating Agreement5EIN Number6Annual Report7Business Licenses8LLC Taxes

Why Form an LLC in Idaho?

Idaho consistently ranks among the most affordable states to form and run an LLC — and it earns that reputation:

  • Genuinely cheap formation — $100 to file online, with no hidden add-on fees for the base filing.
  • Free ongoing compliance — the Annual Report costs $0 if filed online, a rare feature among US states.
  • No franchise tax — Idaho doesn't layer a separate business-privilege tax on top of income tax.
  • Simple flat-rate income tax — a single 5.3% rate applies to all taxable income, with no brackets to calculate.
  • No general statewide business license — fewer licensing hoops than many states, though local and industry-specific permits still apply.

Idaho LLC Cost Calculator

Toggle the options to see your total first-year cost:

Idaho LLC Cost Calculator
First-year formation + recurring cost
Certificate of Organization Required$100 online through SOSBiz$100
Annual Report Required$0 filed online — first one due the year after formation$0/yr
Optional registered agent service fees are excluded from these government-fee totals. Verify current service and renewal pricing directly with the provider.
Paper filing surcharge (optional)Only if filing by mail instead of online$20
Expedited processing (optional)Next-day service — same-day costs more$40
First-year total
$100
formation only, typically
Ongoing per year
$0
based on selections

Estimates only. Registered agent pricing varies by provider. Your first Annual Report isn't due until the year after formation, so most LLCs' actual first-year cash outlay is just the $100 filing fee. Not legal or tax advice.

The 8 Steps to Start Your Idaho LLC

Here's the full path from name to taxes. Each step has its own detailed guide with a tool to make it easier — the filing that legally creates your company is Step 3: Certificate of Organization:

1Name Your LLCPick a compliant, available name and check it with the state.Step 1 → 2Registered AgentAppoint an Idaho agent to receive legal documents.Step 2 → 3Certificate of OrganizationFile the $100 document that legally creates your LLC.Step 3 → 4Operating AgreementSet ownership and management rules (recommended).Step 4 → 5Get an EINYour free federal tax ID from the IRS.Step 5 → 6Annual ReportFile the free report by the end of your anniversary month.Step 6 → 7Business LicensesLocal permits and any industry-specific state licensing.Step 7 → 8LLC TaxesPass-through federal + Idaho's flat 5.3% state tax.Step 8 →

Idaho's Flat Income Tax

Idaho Tax Commission guidance confirms the 5.3% individual rate effective January1,2025. Confirm the final applicable tax-year instructions and taxable base rather than treating a formation guide as a complete 2026 tax calculation. Review actual destination-specific sales taxes and local or professional requirements separately.

Idaho's Annual Report deadline is tied to your anniversary month, not a fixed dateYour report is due by the last day of the calendar month your LLC was originally approved in — every year. Form in March and it's due every March 31; form in November and it's due every November 30. See Step 6 for the full breakdown.

Ahmad Adil's Take: Idaho is genuinely one of the cheapest states to run an LLC in over the long haul — the $0 Annual Report is a real cost saver compared to the $50–$300/year many other states charge just to stay in good standing. Don't skip the report just because it's free, though; the state can still administratively dissolve your LLC if you miss it, even with no fee attached. Set a calendar reminder for your anniversary month the day your LLC is approved.
Optional Provider Service
Northwest: Optional Formation Assistance
Verify current customer feedback directlyOptional filing assistance · Verify current terms directly
  • ✓Optional formation assistance; confirm filing scope, service pricing and submission responsibilities.
  • ✓Confirm reminder and follow-up filing services; the LLC remains responsible for its deadlines.
  • ✓Confirm registered-agent eligibility, coverage, included periods and renewal charges.
  • ✓Review address-use rules and privacy policies; a service does not remove all information from public filings.
Current offer+ $100 ID state fee
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Start Here · Step 1 of 8
Name Your Idaho LLC
Check availability and meet Idaho's naming rules in minutes.
Step 1: Name Search

Free reporting does not mean no ongoing obligations

Idaho’s Certificate of Organization has a $100 base filing fee, with a $20 manual-processing addition for a $120 paper total. Expedited service adds $40; same-day service adds $100. Check current submission cutoffs and service conditions instead of promising next-day acceptance. Form251 requires principal-office street/mailing addresses, agent and physical Idaho service address, at least one governor’s name/address, correspondence mailing address and an organizer or authorized-person signature. Do not attach the operating agreement.

Official requirements and instructions

Frequently Asked Questions

Idaho LLC — FAQ

How much does it cost to start an LLC in Idaho?
It costs $100 to file the Certificate of Organization online, or $120 by paper. After that, the required Annual Report is $0 if filed online.
Does Idaho have a franchise tax?
No — Idaho does not charge a separate franchise or business-privilege tax on LLCs.
How long does it take to form an Idaho LLC?
Check the current SOSBiz filing queue and service conditions. The official Certificate lists +$40 expedited and +$100 same-day options; do not rely on a guaranteed next-day turnaround.
When is Idaho's Annual Report due?
By the last day of your LLC's anniversary month — the month it was originally approved — every year. Your first report isn't due until the year after formation.
What is Idaho's state income tax rate?
The Tax Commission confirms a 5.3% individual rate effective January1,2025. Check the final applicable tax-year instructions, deductions, sourcing, credits and classification for the actual return.
Can a non-resident form an Idaho LLC?
Yes — there's no residency requirement for members. You'll still need a registered agent with a physical Idaho street address.
Does Idaho require a general business license?
No — Idaho has no statewide general business license requirement, though local city/county permits and certain industry-specific state licenses may still apply.
Ahmad Adil, founder of LLC School
About the Author
Ahmad Adil

Ahmad Adil is the founder and CEO of LLC School. For filing and ongoing compliance, confirm the requirements with the responsible state agency. This is educational information, not legal or tax advice.

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