Does an LLC Need an EIN?

Last updated September 9, 2026 · Written by the EIN Registration filing team

Usually yes. The IRS requires an EIN for any LLC with two or more members, any LLC that pays employees, and any LLC that elects to be taxed as an S corporation or C corporation. The only LLC the IRS does not require one for is a single-member LLC with no employees, which may report under the owner’s SSN. Even that LLC almost always gets one, because the bank opens the account in the LLC’s name and asks for the LLC’s number, and because putting your SSN on every W-9 and invoice defeats part of the reason you formed an LLC.

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Our specialists prepare the SS-4 with the right LLC classification, file it with the IRS, handle any name conflict, and email you the EIN, typically within 2 to 4 business days (7 to 10 if it has to go by fax).

LLC →Corporation →Sole Proprietor →Partnership →Trust →Estate →

When the IRS requires an EIN for an LLC

The requirement follows how the IRS taxes the LLC, not the word “LLC” itself. An LLC is required to have its own EIN if any of these is true:

It has two or more members. A multi-member LLC is a partnership for federal tax by default and files Form 1065, which cannot be filed under a member’s SSN.
It has employees. Payroll returns, W-2s and federal deposits all run on the employer’s EIN. Paying the owner a salary counts.
It elected S corporation or C corporation taxation on Form 2553 or Form 8832. A corporation for tax purposes always needs its own number, and the election form asks for it.
It owes excise tax or files alcohol, tobacco or firearms returns.
It has a Keogh or solo 401(k) plan, or withholds tax on payments to a non-resident member.

The one LLC that can skip it: single member, no employees

A single-member LLC with no employees is a disregarded entity by default. Its income and expenses go on the owner’s Schedule C (or Schedule E for rentals), and for that return the owner’s SSN is enough. The IRS says so plainly. This is the only case where “does an LLC need an EIN” is honestly a no.

It stops being a no the moment any item on the list above happens. Hire one employee, add a second member, or file the S corporation election, and the LLC must have its own EIN from that point. The single-member LLC guide walks through that rule line by line.

Why nearly every single-member LLC gets one anyway

The bank. A business account is opened in the LLC’s legal name, and the bank’s account opening checklist asks for the LLC’s EIN and its IRS confirmation letter. Some banks will open a sole proprietor account on an SSN; almost none will title an account to an LLC without an EIN. The bank account guide lists what each major bank asks for.
Payment processors and marketplaces. Stripe, Square, PayPal, Amazon and Etsy verify the business against a tax ID. Registering the LLC on your SSN means the account is verified as you, not as the company.
Clients and W-9s. Every client that has to file a 1099 on what it pays you asks for a W-9 first. Without an EIN, that form carries your SSN, and so does the 1099 they file. An EIN keeps your SSN out of other people’s accounting departments.
Separation. An LLC protects you only if it is run as a separate entity. Its own tax number, its own account and its own contracts are the paper trail that shows it was.
It costs nothing to hold. An EIN has no annual filing, no renewal and no fee to keep. Getting it now avoids re-doing the bank paperwork later.

EIN or SSN for an LLC: which one goes where

Owners of single-member LLCs are often told two different things by the bank and by the W-9 instructions. Both are right, for different forms.

Where	Single-member LLC, no election	Multi-member, or S or C election
Bank account	The LLC’s EIN	The LLC’s EIN
Federal income tax return	Owner’s SSN on Schedule C or E	The LLC’s EIN on Form 1065 or 1120-S
Form W-9 you give clients	Owner’s name on line 1 with the owner’s SSN, or an EIN issued to the owner. The W-9 instructions say not to use a disregarded LLC’s own EIN here.	The LLC’s name and EIN
Payroll and employment returns	The LLC’s EIN (required once you hire)	The LLC’s EIN
State tax registrations	The LLC’s EIN in nearly every state	The LLC’s EIN

The W-9 row surprises people. A disregarded single-member LLC is supposed to give clients the owner’s number, because the IRS matches the 1099 to the owner’s return. Many owners solve this by getting an EIN as a sole proprietor in their own name for W-9s, while the LLC’s EIN handles the bank and payroll. If that sounds like two numbers, it is, and it is the IRS’s design.

What breaks if an LLC that needs one does not have it

A partnership or S corporation return cannot be filed, and the late filing penalty runs per member, per month.
Payroll cannot start. No payroll provider will run wages without an EIN, and federal deposits have nowhere to go.
The S corporation election is rejected or delayed, because Form 2553 asks for the EIN on line A.
The business bank account stays closed, which means client payments land in a personal account and the separation the LLC was formed for is gone on day one.

When to apply

After the state approves the LLC, not before. The IRS records the legal name and formation date exactly as you type them, and if the state later changes or rejects the name, the EIN is attached to a company that does not exist. The before-or-after guide explains the order, and the EIN for an LLC guide covers the SS-4 lines and the rejections that come from getting them wrong.

Quick answers

Does a single-member LLC need an EIN?

Not for federal tax, as long as it has no employees and no corporate election. Yes for the bank, for payment processors, and for any state that registers the LLC for sales or withholding tax. Nearly every single-member LLC gets one in its first week.

Does an LLC with no income need an EIN?

Income has nothing to do with it. A multi-member LLC still files a partnership return in a zero-income year, and a single-member LLC with no income still needs the number to hold a bank account. The EIN carries no filing obligation of its own.

Does an LLC for a rental property need an EIN?

A single-owner rental LLC with no employees reports on the owner’s Schedule E and can use the SSN. Most get an EIN anyway for the operating account that collects rent and pays the mortgage, and any LLC owned by two or more people needs one regardless.

Can I use my SSN for my LLC?

Only if it is a single-member LLC with no employees and no S or C election, and only for the federal return and the W-9. The bank will still want the LLC’s own EIN.

I had an EIN as a sole proprietor. Does my new LLC need another one?

Yes. That number is registered to you personally, under your own name. A new LLC is a new entity and gets its own EIN in the LLC’s exact legal name. The new EIN scenario table covers every other change that does or does not need a new number.

Is an EIN the same as an LLC tax ID number?

Yes. “Tax ID number for an LLC,” “federal tax ID,” “FEIN” and “EIN” all mean the nine-digit number the IRS assigns on Form SS-4. State tax IDs are a separate set of numbers issued by your state’s revenue agency after you have the federal one.

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Related guides

EIN for an LLC (LLC Tax ID Number): How to Get One and When You Need It 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.
Does a Single-Member LLC Need an EIN? Almost every bank requires one to open the LLC's account, and hiring or electing S corporation status makes it mandatory. What actually happens, what the IRS rule says, and what goes on the SS-4.
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.
Do You Need an EIN to Open a Business Bank Account? For an LLC, corporation, partnership, estate or trust, the bank will ask for one. For a sole proprietor it depends on the bank. What each account type needs, and what else to bring.
Form 2553 Instructions: How to File the S Corporation Election Who can elect S status, the 2 months and 15 days deadline with the IRS's worked example, every line of the form, the two fax numbers and addresses by state, late relief under Rev. Proc. 2013-30, and what the IRS sends back.
Do I Need a New EIN? The Full Scenario Table A new EIN is needed when the taxpayer changes, not when its details do. Name changes, new partners, and S-corp elections keep it; incorporating, sole prop to partnership, and a trust turning irrevocable need a new one.
Do I Need an EIN? (Every Situation, Answered) Banks require one in almost every case and the IRS requires one in six. Single-member LLC, sole proprietor, DBA, no employees, contractor, rental property, and the bank account question, each answered plainly.

Sources

EIN Registration is an independent document preparation and filing service and is not affiliated with the IRS or any government agency. You can also apply for an EIN directly with the IRS at irs.gov at no cost.