Idaho Secretary of State, Business Services Division

Idaho business entity search

Office facts, status meanings and filing rules for Idaho. The steps below show how to search Idaho's official registry.

Federal filings only here. Idaho registry records are on the official site.

Idaho registry at a glance

Registry agency: Idaho Secretary of State, Business Services Division
Office: Secretary of State Phil McGrane, since 2023; Source: sos.idaho.gov · checked 2026-10-06
Phone: (208) 334-2301; Source: sos.idaho.gov · checked 2026-10-06
Address: Business Office, 450 N. 4th Street, Boise, ID 83702; Source: sos.idaho.gov · checked 2026-10-06
Mailing address: P.O. Box 83720, Boise, ID 83720-0080; Source: sos.idaho.gov · checked 2026-10-06
Hours: Monday to Friday, 8:00 a.m. to 5:00 p.m.; Source: sos.idaho.gov · checked 2026-10-06
Official search: SOSBiz Business Search →; Source: sosbiz.idaho.gov · checked 2026-10-06
Registry number: File number

The SOSBiz Business Search searches by business name (starts with the keyword), file number and advanced search options.

Open Business Search on SOSBiz, the Idaho Secretary of State filing site.Source: sosbiz.idaho.gov · checked 2026-10-06
Type the start of the business name or the file number; the search matches names that begin with your keyword.Source: sosbiz.idaho.gov · checked 2026-10-06
Open Advanced Search Options to narrow the results if needed.Source: sosbiz.idaho.gov · checked 2026-10-06
Run the search and select the business to open its record.Source: sosbiz.idaho.gov · checked 2026-10-06
Check the status, file number, registered agent, and filing history on the record.Source: sosbiz.idaho.gov · checked 2026-10-06

Source: sosbiz.idaho.gov · checked 2026-10-06

Asking for the wrong number is a common reason a search comes back empty.

Federal EIN: Internal Revenue Service; Identifies the business for federal tax. It is the same number in every state.; Source: irs.gov
File number: Idaho Secretary of State, Business Services Division; Identifies the entity's record in the Idaho registry.
Idaho State Tax Commission permit or account number (such as a seller's permit): Idaho State Tax Commission; The Tax Commission issues seller's permits and other tax permits and offers a permit validation page. These are separate from the Secretary of State file number and from the federal EIN issued by the IRS.; Source: tax.idaho.gov · checked 2026-10-06

Administratively dissolved: The Secretary of State dissolved an Idaho entity, for example for not filing its annual report. Only Idaho entities can reinstate.; Source: sos.idaho.gov · checked 2026-10-06

LLC formation: $100 (Certificate of Organization) online; paper filings add a $20 manual processing fee; Source: sos.idaho.gov · checked 2026-10-06
Corporation formation: $100 (Articles of Incorporation, general business) online; paper filings add a $20 manual processing fee; Source: sos.idaho.gov · checked 2026-10-06
Annual filing: Annual Report; Source: sos.idaho.gov · checked 2026-10-06
Late filing: An entity that does not file can be administratively dissolved and must then file for reinstatement.; Source: sos.idaho.gov · checked 2026-10-06
Filed with: Idaho Secretary of State, online through SOSBiz (an SOSBiz account is required); Source: sos.idaho.gov · checked 2026-10-06
Note: Paper filings carry an extra $20 manual processing fee. Paper annual report forms are available only by request.; Source: sos.idaho.gov · checked 2026-10-06

As published by the Idaho Secretary of State, Business Services Division, checked 2026-10-06. Fees change, and the official schedule decides.

Registered agent: Most business entities registered in Idaho must keep a registered agent.; Source: sos.idaho.gov · checked 2026-10-06
Name availability: Check whether a name is available in Idaho →
Business forms and fees: Official Idaho business forms and fees →

A fact that could not be confirmed on an official page is left out.