How to Find Your EIN When You Don't Have a W2

You can find your EIN through the IRS directly, even without a W2 in hand

Your Employer Identification Number (EIN) is a nine-digit identifier the IRS assigns to your business. If you're self-employed, own a partnership, or run an LLC, you have one — whether or not you've received a W2 from anyone. The IRS keeps a record of every EIN it issues, and you can retrieve yours by contacting them or checking documents you may already have at home.

You don't need a W2 to find your EIN. In fact, a W2 wouldn't show your EIN anyway — it shows your employer's EIN. What you need is either a record from when you first registered your business, or you can ask the IRS to look it up for you using your name and business address.

Key Takeaways

The IRS can look up your EIN over the phone using your Social Security Number and business address, and you'll have it within minutes.
Check documents you received when you first registered your business — your EIN appears on the IRS approval letter, business licenses, and bank account paperwork.
If you formed your business through a state agency, that state's business records database usually shows your EIN for free.
The IRS Business & Tax ID hotline (844-489-4254) is the fastest way to retrieve a lost EIN without waiting for mail.

Call the IRS Business & Tax ID Line

The fastest way to find your EIN is to call the IRS directly. The Business & Tax ID Hotline is 844-489-4254. Have your Social Security Number and the address where you registered your business ready before you call. The IRS representative will verify your identity and read your EIN to you over the phone.

This line is open Monday through Friday, 7 a.m. to 7 p.m. Eastern time. Wait times vary, but you typically get through within 15 to 30 minutes. If you call outside business hours, you can leave a callback request and the IRS will call you back the next business day.

Check Your Business Registration Documents

Your EIN appears on several documents you received when you first started your business. Look for the IRS Form SS-4 confirmation letter — this is the official approval letter the IRS sent you after you registered. It has your EIN printed near the top. If you filed online through IRS.gov, you may have printed or saved this letter.

Your EIN also appears on your state business license, your Employer Identification Number assignment letter from your state (if your state issues one separately), and any bank account paperwork from when you opened a business account. Check a folder labeled "business registration," "tax documents," or "IRS correspondence." If you've moved or changed email addresses, look for physical mail you received around the time you started the business.

Search Your State's Business Database

Every state maintains a public database of registered businesses. You can search it for free using your business name or your Social Security Number. The database usually shows your EIN, business address, and registration status.

Go to your state's Secretary of State website or business registration portal. Most states call this the "Business Entity Search" or "Corporation Search." Type in your business name or your name as the owner, and the system will return your registration record with your EIN. This works whether you formed an LLC, corporation, partnership, or sole proprietorship. If you're not sure where to search, call your state's business registration office — they can tell you the exact URL and walk you through the search in a few minutes.

Request Your EIN in Writing from the IRS

If you prefer not to call, you can request your EIN by mail. Send a letter to the IRS at the address for your region (listed on IRS.gov under "Where to File"). Include your name, Social Security Number, business name, business address, and a brief explanation that you need your EIN. The IRS will mail your EIN back to you, but this usually takes 2 to 4 weeks.

This method is slower than calling, but it creates a paper record of your request. Keep a copy of the letter you send. If you need your EIN urgently — for a loan, tax filing, or employment verification — the phone line is the better option.

Check Your Tax Returns and Bank Records

If you've filed business tax returns, your EIN appears on every one. Look for copies of Form 1040-SE (if you're self-employed), Form 1065 (if you're in a partnership), or Form 1120 (if you're a corporation). Your accountant or tax preparer may have copies if you don't.

Your business bank statements also show your EIN. If you opened a business checking account, the bank used your EIN to set up the account. Log into your online banking or call the bank's customer service line with your account number. They can confirm your EIN in seconds.

What to Do If You Never Registered Your Business

If you've been operating a business but never formally registered it or applied for an EIN, you'll need to do that first. You can register and receive an EIN at the same time through IRS.gov or by calling the Business & Tax ID Line. The process takes about 15 minutes over the phone, and you'll have your EIN immediately.

If you're a sole proprietor (self-employed with no employees), you can use your Social Security Number instead of an EIN for most purposes. However, if you have employees, operate as an LLC or corporation, or need an EIN for banking or lending, you must register with the IRS and obtain one.

Frequently Asked Questions

Can I find my EIN online without calling the IRS?

You can search your state's business database online for free, and that will show your EIN. The IRS does not have a public online lookup tool, but your state's Secretary of State website usually does. If your business is registered in your state, this is the fastest way to find it without making a call.

What if I lost my EIN and can't find any documents?

Call the IRS Business & Tax ID Line at 844-489-4254 with your Social Security Number and business address. They will look it up and give it to you over the phone. This is the most reliable method when you have no paperwork.

Is my EIN the same as my Social Security Number?

No. Your EIN is a separate nine-digit number assigned by the IRS to your business. Your Social Security Number is your personal tax identifier. If you're self-employed with no employees, you can use your SSN instead of an EIN, but they are not the same thing.

Do I need an EIN if I'm a sole proprietor?

Not always. If you're self-employed with no employees, you can use your Social Security Number on tax forms. However, you must obtain an EIN if you have employees, operate as an LLC or corporation, or want to open a business bank account under your business name.

How long does it take to get an EIN if I don't have one yet?

If you apply by phone, you receive your EIN immediately. If you apply online through IRS.gov, you get it the same day. If you apply by mail, it takes 2 to 4 weeks. The phone and online methods are much faster.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.