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Idaho state guide · EIN

Getting an EIN for
your Idaho LLC

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.

Issued byIRS (not Idaho Secretary of State)
Form filedSS-4
CostIncluded in $299
Typical turnaroundSame day after approval

What the EIN actually is

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.

How we obtain your Idaho LLC's EIN

  1. I.

    We wait for Idaho approval

    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.

  2. II.

    We prepare Form SS-4

    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).

  3. III.

    We submit to the IRS

    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.

  4. IV.

    We deliver the EIN letter

    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 note

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.

What the EIN is used for

  • Opening a business bank account. Every major U.S. bank requires the EIN confirmation letter and the stamped Idaho Articles of Organization before opening a business checking account in the LLC's name.
  • Filing federal tax returns. A multi-member LLC files Form 1065 under the EIN. A single-member LLC defaults to disregarded entity but still benefits from a separate EIN for tax and liability purposes.
  • Payroll and contractor payments. Required for W-2 payroll, 1099 contractor payments, and state withholding registrations in Idaho.
  • Merchant accounts and payment processors. Stripe, Square, PayPal, and most credit-card processors require the EIN to tie the account to the business entity.

What an EIN is not

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.

What's included in the $299 flat fee

State filingArticles of Organization, by a formation specialist
EIN includedFederal tax ID, issued by the IRS after approval
Operating agreementDrafted to your ownership structure — not a template
Registered agentOne year included in Idaho, Boise on file
Ready to form in Idaho?

$299 flat, plus Idaho's $100 state fee.

Reservation takes three minutes. A formation specialist in Boise handles the rest.

Start your Idaho filing