Idaho Secretary of State
How Much Does a Corporation Cost in Idaho?
Forming a corporation in Idaho means filing the Articles of Incorporation with the Idaho Secretary of State. The calculator below separates official government fees from estimates, and fixed costs from variable ones.
An S corporation is a federal tax election, not a state entity type — both LLCs and corporations may qualify for it.
First-year government fees — Idaho Corporation
$100
First-year government fees for a Idaho Corporation: $100
Official state fees
Ongoing fixed fees
≈ $0/yr annualized for comparison — actual payment schedule shown above.
Five-year outlook
Educational estimate based on official fee schedules verified July 12, 2026 — not legal or tax advice. Fees, rules, and processing times change; confirm with the state or a qualified professional before relying on them.
The numbers behind this page
Every figure comes from the typed data record for Idaho, verified July 12, 2026 against the sources listed at the bottom of this page.
| Fee | Amount | Schedule | Type |
|---|---|---|---|
| Articles of Incorporation filing fee Online fee; paper filings cost $120. | $100 | One-time | Official state fee |
† Partially verified — corroborated but not confirmed on a machine-readable official page.
| Fee | Amount | Schedule | Type |
|---|---|---|---|
| Annual report Idaho charges no fee for the annual report, but filing it is still required to stay in good standing. | $0 | AnnualDue each year by the end of the formation anniversary month, beginning the year after formation | Official state fee |
† Partially verified — corroborated but not confirmed on a machine-readable official page.
Filing process & processing times
File online through the SOSBiz portal or by mail.
| Option | Typical turnaround | Added fee | Notes |
|---|---|---|---|
| Standard processing | 1–7 business days | None | Online filings are processed within about a week; paper takes longer |
Processing times are estimates based on currently available official guidance and change with filing volume — they are not guaranteed.
Registered agent costs
Every Idaho Corporationmust continuously maintain a registered agent with a physical in-state address. Acting as your own agent costs $0 where you meet the state's eligibility rules; commercial services typically run $100–$300 per year. The calculator uses $200 — the midpoint of that range — when you choose a hired service.
Midpoint of the typical advertised price range for national commercial registered-agent services as of July 2026 (e.g. Northwest Registered Agent $125/yr, ZenBusiness $199/yr, LegalZoom $249/yr). Budget providers advertise below this range and premium corporate-service firms above it. Serving as your own agent costs $0 where you meet state eligibility rules.
Worth knowing about Idaho
- Idaho's annual report is free — after the formation fee, there is no fixed recurring state charge, though the report must still be filed every year.
Idaho Corporation cost FAQs
How much does it cost to start a corporation in Idaho?
The Idaho Secretary of State charges $100 to file the Articles of Incorporation. That figure excludes optional services and any variable taxes, which depend on your circumstances.
What are the ongoing costs of a corporation in Idaho?
Idaho corporations generally must pay the annual report of $0 per year (due each year by the end of the formation anniversary month, beginning the year after formation).
How long does it take to form a corporation in Idaho?
Standard processing generally takes about 1–7 business days. Idaho does not currently offer a paid expedited tier for this filing. Processing times change with filing volume, so confirm current turnaround with the state before relying on a date.
Do I need a registered agent for a corporation in Idaho?
Yes. Every Idaho corporation must continuously maintain a registered agent with a physical address in the state to receive legal and official mail. You can generally act as your own agent at no cost if you meet the state's eligibility rules, or hire a commercial service — typically $100–$300 per year. Whether serving as your own agent is practical depends on your circumstances, including privacy and availability during business hours.
When is the Idaho annual report due?
Due each year by the end of the formation anniversary month, beginning the year after formation. Idaho charges no fee for the annual report, but filing it is still required to stay in good standing. Missing the deadline can trigger late fees or administrative dissolution, so put the date on your compliance calendar.
What this page doesn't cover
- Federal, state, and local taxes beyond the fixed fees shown — income-dependent taxes are listed as variable obligations and never included in exact totals.
- Business licenses, local permits, industry-specific registrations, and DBA filings.
- Attorney, accountant, or filing-service fees beyond the labeled registered-agent estimate.
- Whether a corporation — or Idaho — is the right choice for your situation. FormedIn provides general educational information, not legal, tax, accounting, or financial advice, and nothing here recommends an entity type or formation state for any specific person.
Fees, rules, deadlines, and processing times change. Confirm current requirements with the Idaho Secretary of State and consult a qualified attorney, CPA, or tax professional about your specific circumstances.
Sources
Idaho data last verified July 12, 2026.
- Business Forms and Fees— Idaho Secretary of StateOfficialaccessed July 12, 2026
- How Much Does a Registered Agent Cost? 2026 Guide— RegisteredAgentCost.comaccessed July 12, 2026
- How Much Does a Registered Agent Cost?— ZenBusinessaccessed July 12, 2026
Keep going
- Idaho LLC costs →
- Compare Idaho with other states →
- What a Registered Agent Actually Does (and Being Your Own) →
- Annual Compliance Checklist by Entity Type →
- How to Choose Your Formation State (Delaware Isn't a Default) →
- LLC vs. S Corporation Election: The Basics →
- Official source: Idaho Secretary of State →