Getting an EIN for Your Indiana LLC

An Employer Identification Number is a nine-digit federal tax ID that the IRS assigns to a business. It is to your business what a Social Security number is to you — a unique identifier used on tax filings, bank applications, payroll, and dealings with vendors and agencies.

When your Indiana LLC needs an EIN

You are required to have an EIN if any of these apply:

• Your LLC has more than one member. Multi-member LLCs are taxed as partnerships by default and must file a partnership return, which requires an EIN.
• You hire employees. Payroll and employment tax reporting run on the EIN.
• You elect corporate tax treatment. Choosing S-corp or C-corp taxation for the LLC requires an EIN.
• You need to file certain federal excise or employment taxes.

When it is optional but still smart

A single-member LLC with no employees can technically use the owner's Social Security number for federal tax purposes, since the IRS treats it as a disregarded entity. But almost everyone gets an EIN anyway, for two practical reasons: nearly every bank requires one to open a business account, and using an EIN keeps your Social Security number off business paperwork, invoices, and vendor forms. For a few minutes of effort, it is worth doing.

The best part: an EIN is completely free from the IRS, and the process is quick. Do not pay a third-party site that charges a fee to "obtain" your EIN — all they do is fill in a free government form.

The online application

Apply through the IRS EIN Assistant at IRS.gov. It is the fastest route:

• The application takes about ten minutes.
• The EIN is issued immediately when you finish — you can print the confirmation letter and use the number the same day.
• Online applications are available during the IRS's posted hours (it is not up around the clock), and each session has a time limit, so have your information ready before you start.

What you need on hand

• Your LLC's exact legal name as filed with the Indiana Secretary of State, and its formation date.
• The LLC's principal business address.
• The name and Social Security number or ITIN of the "responsible party" — generally the person who controls the LLC.
• Your management and ownership basics (single-member versus multi-member).

If you do not have an SSN or ITIN

The online EIN Assistant requires the responsible party to have a U.S. Social Security number or ITIN. If you do not have one, you cannot use the online tool — instead you complete Form SS-4 and submit it to the IRS by fax or mail. This route takes longer, but it is how non-U.S. owners obtain an EIN for an Indiana LLC.

The order of operations matters a little here, and getting it right saves rework.

Form the LLC first

Apply for your EIN after your Indiana LLC is officially formed — that is, after the Secretary of State has approved your Articles of Organization. Because online INBiz filings are often approved the same or next business day, you rarely wait long. Applying for the EIN before the LLC legally exists can create a mismatch between what the IRS has and what Indiana has, which is a headache to unwind.

Then the EIN, then the bank

The natural sequence is: form the LLC, get the EIN, open the business bank account. The bank will want both your filed Articles of Organization and your EIN confirmation, so having the EIN in hand keeps that appointment moving. Since the EIN issues instantly online, many owners get all three done within a day or two of forming.

The EIN is federal. Getting it does not register you for Indiana's state-level taxes, which are a separate step handled through the state, not the IRS.

Registering with the Indiana Department of Revenue

If your LLC will sell taxable goods or certain services, you register for a Registered Retail Merchant Certificate and a sales tax account with the Indiana Department of Revenue, often through the INBiz portal as part of setting up the business. If you have employees, you also register for withholding tax. These registrations use your federal EIN as the identifier, which is one more reason to get the EIN squared away early.

What the EIN does not cover

An EIN is not a business license, not a sales tax permit, and not your Indiana state tax registration. It is purely a federal identifier. Owners sometimes assume the EIN handles everything tax-related — it does not. Plan on the separate Indiana registrations that match your activity: sales tax if you sell taxable items, withholding if you have employees, and any industry-specific accounts your business requires.

Keep the confirmation safe

Store your IRS EIN confirmation letter (the CP 575, or a later 147C if you request a replacement) with your permanent business records. Banks, lenders, and agencies ask for it, and getting a replacement from the IRS takes time. It is a small document that you will reach for more often than you expect over the life of the LLC.