EINs for LLCs
When an LLC needs an EIN, when to apply, and which number to use.
Last updated November 5, 2026
How to Apply for an EIN for an LLC (LLC Tax ID Number)
Nearly every LLC needs its own EIN for the bank, and multi-member LLCs and S corporation elections make it mandatory. The LLC lines on the SS-4, the timing after state approval, and the mistakes that get applications rejected.
How to Get an EIN for an LLC, by Situation
What to do for your LLC's EIN when it is brand new, has one owner, has several, or already has a number.
Does an LLC Need an EIN? When It Is Required and When It Is Not
Required for multi-member LLCs, LLCs with employees, and S or C elections. A single-member LLC with no employees can use the owner's SSN for federal tax, but the bank, payment processors and W-9s make the EIN the practical answer. EIN vs SSN, form by form.
EIN Before or After the LLC? (And Whether You Need an LLC at All)
Form the LLC first, then apply for the EIN in the LLC's name. Why the order matters, what happens if you did it backwards, and how to get an EIN with no LLC at all.
How to Get an LLC and an EIN: The Steps in Order
Form the LLC with your state, then apply for the EIN in the exact approved name. What to have ready for each step, and the mistakes that cost time.
EIN for a Single Member LLC: How to Get One, and the W-9 Question
A single member LLC with no employees can file on the owner's SSN, but the bank, every W-9 and any S corporation election need the LLC's own EIN. When the IRS requires it, what the SS-4 asks a single owner, and which number goes on the W-9.
Form SS-4 for a Single-Member LLC: A Filled-In Sample
Every line of the December 2025 SS-4 filled in for a one-owner LLC, the line 9a choice for a disregarded, foreign-owned or S corporation LLC, the line 7b rules, and the Form 944 box to think twice about.
Tax ID for an LLC: Which Number to Use
Which tax ID an LLC uses depends on its owners and how it is taxed. Each case, and how to get the number.
LLC EIN Number: How to Find It or Get One
What an LLC's EIN number looks like, where to find it, and how to get one if the LLC has none.
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You can also apply for an EIN directly with the IRS at irs.gov at no cost.