An Employer Identification Number is the federal tax ID your Idaho LLC needs to open a business bank account, hire employees, or accept payments. We obtain it from the IRS on your behalf after Idaho approves your LLC.
An Employer Identification Number — EIN — is a nine-digit federal tax ID assigned by the Internal Revenue Service. It's to your LLC what a Social Security number is to an individual: a unique identifier that the federal government, banks, payment processors, and payroll systems use to track the entity.
Every Idaho LLC that plans to open a business bank account, hire employees, or file federal taxes as a partnership or corporation will need an EIN. The only LLCs that can technically operate without one are disregarded single-member LLCs that never hire anyone and use the owner's Social Security number for everything — which is rarely practical once you're actually in business.
The EIN application requires a formed entity. We don't submit the SS-4 until the Idaho Secretary of State returns your stamped Articles of Organization — usually 3–5 business days after filing.
A formation specialist completes the SS-4 with your LLC's name, Idaho formation date, principal business activity, and member information — the classification you've elected (disregarded, partnership, S-corp, C-corp).
For most founders (U.S. person as responsible party, valid SSN or ITIN) the online IRS system issues the EIN the same day. For non-U.S. responsible parties we submit by fax, which takes roughly four business days.
You receive the official IRS confirmation letter (CP 575 or equivalent) — the document every U.S. bank requires to open the business account in your Idaho LLC's name.
Idaho's annual report carries no filing fee. It is due by the end of the LLC's anniversary month each year. Miss it and the state begins the administrative dissolution process. Idaho also has no franchise tax, making ongoing compliance costs about as low as any state in the country.
An EIN is a federal identifier. It is not a business license, an Idaho state tax ID, a seller's permit, or a DBA registration. If your business collects Idaho sales tax or has employees in Idaho, you'll also need to register with the state's tax authority — that is separate from the EIN and is not part of the $299 formation package.
Reservation takes three minutes. A formation specialist in Boise handles the rest.