SOSBiz is the Idaho Secretary of State's online business platform at sosbiz.idaho.gov. It hosts the free business entity search and is also where you file a Certificate of Organization, file annual reports, register assumed business names and trademarks, and order certificates of existence.

What does administratively dissolved mean in an Idaho search result?

It means the Secretary of State ended the entity's existence for failing to meet a statutory requirement, most often the annual report. The entity loses good standing and its claim to the name. Idaho allows reinstatement within a statutory window once the missed filings and any fees are submitted.

Idaho Business Entity Search: How to Use SOSBiz (2026)

Q: Is the Idaho business entity search free?

Yes. The Idaho Secretary of State's business search inside SOSBiz is free and requires no account. You can view an entity's legal name, status, entity type, file number, registered agent, and filing history at no cost. You only pay when you order a document, such as the $10 Certificate of Existence, or submit a filing.

Q: How do I check if a business name is available in Idaho?

Search the distinctive word of your proposed name in SOSBiz, then search the full name and obvious variants. Idaho requires a new name to be distinguishable upon the records of the Secretary of State from existing and reserved names. Punctuation, spacing, and entity designators such as LLC do not make two names distinguishable.

Q: Does the Idaho entity search show the registered agent?

Yes. An Idaho entity record shows the current registered agent and the registered office address on file with the Secretary of State. If that information is stale, update it through SOSBiz; Idaho requires a physical Idaho street address for the registered office, not a post office box.

Q: Does an available name in Idaho mean I own the trademark?

No. Name availability in SOSBiz only means Idaho will accept the filing. Trademark rights come from actual use and from federal or state registration. Another business with prior use or a federal registration can still stop you, so run a USPTO trademark search separately.

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 20, 2026 · Last updated Aug 20, 2026

Idaho's business entity search runs inside SOSBiz, the Idaho Secretary of State's online filing system at sosbiz.idaho.gov. Searching is free and needs no account. It returns an entity's legal name, status, entity type, file number, registered agent, and filing history, which is how you confirm a name is available before you file.

Quick Answer

Tool: SOSBiz business search (Idaho Secretary of State)
Cost: Free - no account needed to search
Returns: Legal name, status, entity type, file number, registered agent, filings
Name check: Confirms whether a proposed name is distinguishable on the record
Certificate of Existence: $10 through SOSBiz
Governing law: Idaho Uniform Limited Liability Company Act, Idaho Code Title 30, Chapter 21

Where the Idaho Business Entity Search Lives

Idaho does not run a standalone lookup site. The entity search is a module inside SOSBiz, the Idaho Secretary of State's online business filing platform. You reach it at sosbiz.idaho.gov/search/business, and the same platform is where you later file a Certificate of Organization, an annual report, or a trademark application. The Secretary of State's Business Services division maintains the record.

Searching is free. You do not need a SOSBiz account, and you are not charged to view a filing history or a registered agent's name. An account only becomes necessary when you submit a filing or order a document such as a Certificate of Existence. That distinction matters, because commercial sites frequently repackage the free state record behind a paywall.

The record you see is the official one. Anything a third-party database shows about an Idaho entity is a copy of what SOSBiz publishes, often with a lag. When the two disagree, SOSBiz controls.

What the Search Returns

A result page for an Idaho entity typically shows the exact legal name, the entity type (limited liability company, corporation, limited partnership, assumed business name), the current status, the state file number, the date of original filing, the registered agent and registered office address, and a list of documents the entity has filed with the state.

The status field is the one to read first. An entity in good standing is shown as active or existing. An entity that missed its annual report moves toward administratively dissolved. A dissolved or revoked status means the entity is no longer authorized to operate under that name, which also frees the name for someone else after the statutory waiting period.

The file number is the state's permanent identifier for the entity. Keep it: SOSBiz asks for it when you file amendments and annual reports, and it is faster than searching by name each time.

Checking Whether a Name Is Available

The most common reason to run the search is to test a proposed business name before filing. Under the Idaho Uniform Limited Liability Company Act (Idaho Code Title 30, Chapter 21) and the parallel name statutes in Title 30, a new entity's name must be distinguishable upon the records of the Secretary of State from every name already on file or reserved.

Distinguishable is a narrow test. Adding or removing punctuation, changing "Inc." to "Incorporated," or swapping "and" for an ampersand generally does not make two names distinguishable. Changing the substantive wording does. Search broadly first: run the distinctive word alone, then the full name, then obvious variants. If a close match appears, assume it will block you and pick a different name.

An LLC name must also contain a required designator such as "Limited Liability Company," "L.L.C.," or "LLC." See how to form an LLC in Idaho for the full name and filing sequence, and Idaho Articles of Organization for the document itself.

Search Tips That Actually Change Results

Idaho's search is a text match, not a semantic one, so how you type the query changes what you find.

Search the distinctive word, not the whole name. "Sawtooth" surfaces far more than "Sawtooth Design Studio LLC."
Drop the designator. Leave off "LLC" or "Inc." on the first pass.
Try spelling variants. Idaho treats phonetic near-matches as separate records, but a confusingly similar name can still draw a trademark dispute even when the state accepts it.
Include inactive entities. A dissolved company can still hold a name for a period, and it also tells you the name has been used before.
Search assumed business names. Idaho assumed business names (DBAs) sit in the same database; see Idaho DBA filing.

State Availability Is Not Trademark Clearance

Clearing a name in SOSBiz means only that Idaho will accept the filing. It says nothing about trademark rights. A business in another state with a federal registration, or an unregistered Idaho user with prior common-law use, can still stop you from using a confusingly similar mark.

Run a separate trademark search before you invest in signage, packaging, or a domain. Start with the federal register at the USPTO trademark search, then read how to trademark a business name in Idaho and the national trademark guide. Forming an LLC or filing a DBA does not create trademark rights.

Ordering a Certificate of Existence and Copies

Search results are informational. When a bank, lender, or another state's Secretary of State asks for proof, you need an official document. Idaho issues a Certificate of Existence through SOSBiz for a $10 fee, confirming the entity exists and is in good standing on the date of issue.

Certified copies of filed documents are also ordered through SOSBiz. Because these are transactional requests, they require an account and payment, unlike the free search. Banks opening a business account and states processing a foreign registration are the two most common requesters; see foreign LLC registration in Idaho for how the certificate is used.

Keeping Your Own Record Accurate

The search is also a monitoring tool for your own entity. Idaho requires an annual report through SOSBiz, due by the end of the entity's anniversary month. Filing it keeps the status active; missing it starts the path to administrative dissolution and eventually removes your claim to the name.

Check your record after every filing. Confirm the registered agent and registered office are current - Idaho requires a physical Idaho street address, not a P.O. box, as explained in Idaho registered agent requirements. Confirm the principal address and the governing-person information match reality. An out-of-date agent address is the most common way a business misses service of process.

Finally, remember the search shows only Secretary of State data. Idaho income tax accounts sit with the Idaho State Tax Commission, and your federal EIN sits with the IRS. Good standing in SOSBiz does not mean your tax accounts are current. See Idaho LLC tax filing and how to get an EIN in Idaho.

Frequently Asked Questions

Is the Idaho business entity search free?

Yes. The SOSBiz business search is free and needs no account. You pay only to order documents, such as the $10 Certificate of Existence, or to submit a filing.

How do I check if a business name is available in Idaho?

Search the distinctive word first, then the full name and variants. Idaho requires the name to be distinguishable upon the records of the Secretary of State; punctuation and the LLC designator do not count.

What is SOSBiz?

SOSBiz is the Idaho Secretary of State's online business platform. It hosts the free entity search and handles formation filings, annual reports, assumed business names, trademarks, and certificate orders.

Does the Idaho entity search show the registered agent?

Yes. The record lists the current registered agent and registered office address. See Idaho registered agent requirements to keep yours current.

Does an available name in Idaho mean I own the trademark?

No. Availability only means Idaho will accept the filing. Trademark rights come from use and registration, so search the USPTO register separately.

What does administratively dissolved mean?

The Secretary of State ended the entity's existence, usually for a missed annual report. Good standing and the name claim are lost until reinstatement.

Sources

Idaho Secretary of State - SOSBiz business entity search (free search; fields returned).
Idaho Secretary of State - Business Services (SOSBiz filing platform; $10 Certificate of Existence).
Idaho Legislature - Idaho Code Title 30, Chapter 21 (Idaho Uniform Limited Liability Company Act; name distinguishability).
Idaho Legislature - Idaho Code Title 30 (corporations and associations).
Idaho State Tax Commission - Business income tax.
Idaho State Tax Commission - Sales and use tax (seller's permit).
United States Patent and Trademark Office - Trademark search.
IRS - Limited Liability Company (LLC).
IRS - Get an Employer Identification Number.
Legal Information Institute (Cornell) - 26 CFR 301.7701-3 (entity classification election).

LegalGlass provides general information for educational purposes and is not legal advice, is not a law firm, and is not a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; verify current amounts with the Idaho Secretary of State and the Idaho State Tax Commission before acting.