Getting an EIN for Your Ohio LLC

The IRS assigns each business an Employer Identification Number — a nine-digit federal tax ID. Think of it as a Social Security number for your business: it identifies the LLC to the IRS, banks, and other institutions. It's sometimes called a Federal Tax ID or FEIN, but it's all the same number.

What you'll use it for

• Opening a business bank account. Nearly every bank requires an EIN to open an account in the LLC's name — and a separate business account is essential for protecting your liability shield.
• Filing federal taxes. A multi-member LLC needs an EIN to file its partnership return; an LLC that elects S-Corp or C-Corp treatment needs one too.
• Hiring employees. You need an EIN to run payroll and handle federal employment tax deposits.
• Building business credit and applying for licenses. Lenders and licensing agencies often ask for the EIN.

The EIN is federal, issued by the IRS, and completely separate from anything Ohio's Secretary of State does. Forming your LLC in Ohio and getting an EIN are two different steps with two different agencies.

Whether an EIN is strictly required depends on your LLC's structure and activities — but in practice most Ohio LLCs should get one.

You definitely need an EIN if:

• Your LLC has more than one member. Multi-member LLCs are taxed as partnerships by default and must have an EIN to file.
• You have or plan to hire employees.
• You've elected S-Corp or C-Corp tax treatment for the LLC.
• You have a Keogh plan or are involved with certain other tax situations the IRS specifies.

Single-member LLCs: technically optional, practically recommended

A single-member LLC with no employees is a disregarded entity by default, and the IRS lets you use your own Social Security number for federal tax purposes. But most advisors recommend getting an EIN anyway, for two solid reasons: it keeps your SSN off business paperwork (reducing exposure if a form is lost or compromised), and most banks want an EIN to open a business account regardless of whether the IRS strictly requires one. Getting an EIN costs nothing, so there's little reason not to.

The IRS issues EINs at no cost. Be wary of any site that charges a fee to "get your EIN" — you're paying for someone to fill out a short form you could complete yourself for free.

The online route (fastest)

If you have a U.S. Social Security number or ITIN, apply through the IRS EIN Assistant at IRS.gov. The application takes about ten minutes, and the EIN is issued immediately on completion — you can download the confirmation letter and start using the number the same day to open a bank account or set up payroll. The online tool is available during posted IRS hours and must be completed in one session.

What you'll need on hand

• The LLC's legal name exactly as filed in Ohio, and its Ohio formation details.
• The name and taxpayer ID (SSN or ITIN) of the "responsible party" — generally a member who controls the LLC.
• The business mailing address and basic information about what the LLC does.

If you don't have an SSN or ITIN

International founders and others without a U.S. SSN or ITIN can't use the online tool, but they can still get an EIN. File Form SS-4 with the IRS by fax or mail. Fax is faster than mail — turnaround is typically a small number of business days by fax versus several weeks by mail. On the form, you can indicate "foreign" where a U.S. taxpayer ID would otherwise go for the responsible party, following the SS-4 instructions.

A few missteps come up often enough to flag.

Applying before your LLC is formed

Get your Ohio LLC on file with the Secretary of State first, then apply for the EIN using the LLC's exact registered name. Applying before the entity exists — or with a slightly different name — creates mismatches that cause headaches at the bank and with the IRS later.

Paying for something free

The IRS charges nothing. Sites that advertise "EIN registration" for a fee are charging for convenience, not for the number. If you want someone to handle it as part of a formation package, that's fine — just know the number itself is free.

Getting more than one

An LLC generally needs only one EIN. If you apply again because you misplaced the confirmation, you can end up with duplicate numbers tied to the same entity, which creates confusion. If you lose your EIN, retrieve it from your confirmation letter, a prior tax return, or by contacting the IRS rather than applying anew.

Confusing the EIN with state tax accounts

Your federal EIN is not the same as your Ohio tax registrations. If you sell taxable goods, have employees, or owe Commercial Activity Tax, you register separately with the Ohio Department of Taxation — those accounts use the EIN as an identifier but are distinct registrations.

The EIN is the federal thread that ties your business's tax identity together, but Ohio has its own layer.

Federal first, then state as needed

Once you have the EIN, you use it on your federal returns based on how the LLC is taxed — Schedule C for a single-member disregarded entity, Form 1065 for a multi-member partnership, or Form 1120-S for an S-Corp election. Ohio then has its own considerations:

• Ohio income tax on the pass-through profits you report personally.
• Sales tax registration with the Ohio Department of Taxation if you sell taxable goods or services — you'll use your EIN when registering.
• Commercial Activity Tax with the Department of Taxation if your gross receipts exceed the threshold.
• Employer accounts for Ohio withholding and unemployment if you have staff.

Because Ohio has no annual report, the EIN doesn't tie into any recurring Secretary of State filing — it lives entirely on the tax side. Keep your EIN confirmation letter somewhere safe; you'll reach for it every time you open an account, register for a tax, or file a return.