How to Get an EIN in Michigan

An Employer Identification Number (EIN) is your business's federal tax identification number, assigned by the Internal Revenue Service (IRS). Whether you're forming an LLC in Michigan or starting a corporation, you'll likely need an EIN. The good news: the process is straightforward, mostly free, and can be completed online in minutes.

This guide walks you through getting an EIN in Michigan, what to have ready, and how the EIN fits into your broader business registration with the state.

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Do You Need an EIN?

Not every Michigan business needs an EIN right away, but most do. You must have an EIN if your business:

Is a partnership, LLC (including single-member LLCs in some cases), or corporation
Will have employees
Operates as an S corporation or partnership
Has a business bank account in the company's name
Owes excise taxes, employment taxes, or certain other federal taxes
Will hire independent contractors and issue Forms 1099

A sole proprietor with no employees can use a personal Social Security Number (SSN) for tax purposes, but many choose to get an EIN anyway for privacy and business bank account setup.

What You'll Need Before Applying

Gather these details before starting your EIN application, whether online or by mail:

Your legal business name and trade names (DBAs)
Your business address in Michigan (a physical street address, not a PO box)
Your principal business activity (what your business does)
Your business structure: sole proprietorship, partnership, LLC, corporation, or nonprofit
The state where you formed the business (Michigan)
If you have employees: the date you plan to hire them
Your SSN or Individual Taxpayer Identification Number (ITIN) as the business owner or responsible party
Your phone number

If you formed an LLC or corporation in Michigan, you'll want to file that paperwork with the Michigan Department of Licensing and Regulatory Affairs (LARA) before applying for your EIN, so your formation date and business name are on record. The EIN itself is a federal process that doesn't require your state filing to be complete first, but it's cleaner to do it in order.

Step-by-Step: How to Get an EIN

Option 1: Apply Online (Fastest, Recommended)

The IRS offers free, instant online EIN applications on their website. Here's how:

Step 1: Go to the IRS EIN application page. Visit www.irs.gov/ein and click "Apply for an EIN Online." You'll be taken to a secure application portal.

Step 2: Choose your entity type. Select your business structure from the dropdown: sole proprietorship, LLC, partnership, corporation, or other. The form adapts based on your selection.

Step 3: Answer the application questions. The form asks about your business name, address, responsible party (usually the owner or manager), and principal business activity. Be as specific as possible about what your business does. "Retail store" is vague; "organic skincare retail" is clearer.

Step 4: Verify your Michigan address. Your business address must be a Michigan street address. The IRS will not accept PO boxes. If you're using a registered agent address or a coworking space, that's acceptable as long as it's a physical street location.

Step 5: Confirm your responsible party information. This is typically the owner. You'll provide an SSN or ITIN. The responsible party does not need to be the only owner, but the IRS needs someone designated for correspondence.

Step 6: Submit and receive your EIN instantly. If everything checks out, you'll receive your nine-digit EIN on screen immediately. Write it down. The IRS will also email you a confirmation notice (Form SS-4) within 2 to 3 days. That email may end up in spam, so check your junk folder.

Timing: Online applications typically take 2 to 5 minutes. Your EIN is active as soon as you receive it on screen.

Option 2: Apply by Phone

If you prefer to speak with someone or need assistance, you can apply by phone through the IRS Business and Specialty Tax Line.

Step 1: Call the IRS. Dial 1-800-829-4933 (business line). Have your information ready as listed above.

Step 2: Speak with a representative. Tell them you're applying for an EIN. Be ready to answer questions about your business type, address, and principal activity. The call typically takes 10 to 15 minutes.

Step 3: Receive your EIN by phone. The representative will provide your nine-digit EIN over the phone. Write it down and confirm the spelling.

Step 4: Request a confirmation letter. Ask the IRS to mail you a copy of Form SS-4 for your records. They'll mail it within 2 to 3 weeks.

Timing: Phone applications are active the same day.

Option 3: Apply by Mail (Slowest, Least Recommended)

You can mail Form SS-4 to the IRS, though this is the slowest option.

Step 1: Download and fill out Form SS-4. Get the form at www.irs.gov/pub/irs-pdf/fss4.pdf. Print it and fill it out by hand or type it. Do not submit a blank form or incomplete sections will slow processing.

Step 2: Complete required fields. Fill in your business name, Michigan address, entity type, responsible party information, and principal business activity. Double-check your SSN or ITIN and phone number.

Step 3: Mail to the correct IRS address. Address your Form SS-4 to the IRS EIN application mailing address for your region. For Michigan, that's typically the Cincinnati IRS Center. Check the current address on the Form SS-4 instructions page, as addresses can change.

Step 4: Wait for your EIN. The IRS processes mailed forms in 4 to 6 weeks. You'll receive Form SS-4 back with your assigned EIN.

Timing: Allow 4 to 6 weeks for approval and receipt by mail.

After You Get Your EIN: Michigan-Specific Next Steps

Once you have your EIN, you'll need to handle Michigan-specific registrations, depending on your business type.

File Your Business Formation with Michigan LARA

If you formed an LLC in Michigan, you've already filed your Articles of Organization with LARA and have a state business registration. If you formed a corporation, you've filed your Articles of Incorporation. These state filings are separate from your federal EIN but often happen around the same time.

Register for Michigan Sales Tax (if you're a retailer)

If your Michigan business will collect sales tax (you're selling tangible goods or taxable services), you must register for a sales tax permit. You can register online at Michigan.gov/taxes. The process is free, and you can typically get your permit within 7 business days. Use your EIN when registering.

Open a Business Bank Account

With your EIN in hand, open a business bank account in your company's name. You'll need your EIN, your Articles of Organization or Incorporation (proof of formation), a government ID, and your Employer Identification Number (EIN) confirmation letter or Form SS-4. Most banks require these documents to open an account.

Common Mistakes to Avoid

Using a PO box as your business address. The IRS requires a physical street address. A PO box is not acceptable. If your business is home-based, use your home address. If you're using a registered agent or coworking space address in Michigan, that's fine as long as it's a street address.

Applying before deciding your business structure. If you're unsure whether you're forming an LLC, sole proprietorship, or corporation, apply for the EIN once you've settled on that decision. You can't easily change your entity type after the fact.

Mistyping your business name. The name on your EIN should match your state filing exactly. If you're operating under a trade name or DBA, you can note that, but the legal entity name must be consistent.

Forgetting to save your confirmation. When you receive your EIN online, write it down immediately and save the confirmation email. Don't rely on memory. The IRS may take weeks to mail you Form SS-4, so you'll need that number right away for bank accounts and tax filings.

Confusing your EIN with your Michigan Tax ID. Your EIN is your federal tax identifier. Michigan has a separate Business Tax ID number for state withholding taxes, which you'll register for separately if you have employees. They're different numbers for different purposes.

Tips for a Smooth Process

Apply online if possible. It's fast, free, and you get your EIN instantly. There's no reason to use mail or phone unless you have specific accessibility needs or your situation is unusually complex.

Have your information ready before you start. The online application moves quickly. If you hesitate or step away, you may time out and have to start over. Write everything down first.

Double-check your phone number and email. The IRS may need to contact you if something is unclear. If they can't reach you, your application could stall.

Keep multiple copies of your EIN confirmation. Store it digitally, print a hard copy, and include it in your business records. You'll need to reference it for years.

Wait until you've registered your business name in Michigan. Though not required, registering your business structure (LLC or corporation) with LARA before applying for an EIN keeps your records aligned and makes everything easier if the IRS ever needs to verify you.

Timeline and Processing

Online application: 2 to 5 minutes to apply, EIN issued instantly, confirmation email within 2 to 3 days
Phone application: 10 to 15 minutes, EIN issued same day, confirmation letter mailed within 2 to 3 weeks
Mail application: 4 to 6 weeks from submission to receipt

Plan to get your EIN at least 1 to 2 weeks before you need it for a business bank account or payroll setup. If you're in a rush, apply online.

Is This Informational Content, Not Legal or Tax Advice

This article provides general information about the EIN application process in Michigan. It is not legal advice, tax advice, or a substitute for professional guidance. Tax law is complex, and your situation may have nuances we haven't covered here. Before making final decisions about your business structure, tax elections, or federal filings, consult a qualified tax professional, CPA, or business attorney. They can advise you based on your specific circumstances, Michigan state requirements, and federal regulations.

Next Steps

Once you have your EIN, you're ready to open a business bank account, hire employees, and file your first tax returns. If you're forming an LLC or corporation in Michigan at the same time, coordinate your state filing with your EIN application so everything aligns. For more information on Michigan-specific business formation, see our guides on starting an LLC in Michigan or forming a Michigan corporation. And for questions about Michigan state taxes, visit the Michigan Department of Treasury.