Most business bank accounts require an EIN, but sole proprietors have one exception

You need an Employer Identification Number (EIN) to open a business bank account in most cases. The bank uses it to verify your business exists and to report interest earned on the account to the IRS. The one exception: if you are a sole proprietor operating under your own name with no employees, you can use your Social Security number instead.

That exception matters because getting an EIN takes time. If you need a bank account quickly and you operate as a sole proprietor, you can start with your SSN. But if you plan to hire anyone, take on a business partner, or form an LLC or corporation, you will need an EIN before the bank will open the account.

The bank will ask for the EIN or SSN during the account process. They will verify it matches your business structure. If it does not, they will reject the process.

Key Takeaways

  • Sole proprietors using their own name can open a business bank account with a Social Security number, but all other business structures require an EIN.
  • An EIN is free and takes about 15 minutes to request online through the IRS website, with a number issued when ready in most cases.
  • Banks verify the EIN or SSN against your stated business structure, so the number you provide must match what you tell them about your business.
  • If you plan to hire employees or change your business structure later, you will need to obtain an EIN even if you started with your SSN.

When the bank will require an EIN instead of your SSN

The bank requires an EIN if your business is structured as an LLC, S corporation, C corporation, partnership, or nonprofit. These structures are separate legal entities from you as an individual, so the bank cannot use your personal SSN to identify them.

Even if you are the sole owner of an LLC, the bank will ask for the EIN. The LLC is a separate entity on paper, and the bank's compliance system will not accept an SSN for it.

If you are a sole proprietor but you have hired employees or plan to, you must have an EIN. The bank may ask about payroll during the process, and if you say you have employees, they will require the EIN.

How to get an EIN before opening the account

You can request an EIN online through the IRS website at irs.gov/ein. The process takes about 15 minutes. You will need your Social Security number, the business address, the business structure (sole proprietor, LLC, corporation, etc.), and the date you started or plan to start the business.

If you request the EIN online, the IRS issues it when ready. You can use it right away to open the bank account. You do not have to wait for anything in the mail.

If you request by phone, mail, or fax, the process takes longer — usually one to four weeks. Online is faster and free, so that is the route most people take.

You will receive a confirmation letter in the mail within two weeks, but you do not need to wait for it. The number issued online is valid when ready.

What information the bank will ask for

When you explore for the business bank account, bring the EIN or SSN, a government-issued ID, and proof of the business address. The bank will also ask you to confirm the business structure — sole proprietor, LLC, corporation, and so on.

If you obtained an EIN online, you can show the confirmation screen on your phone or print it. Some banks will accept a screenshot; others want a printed copy. Call ahead to ask what they prefer.

The bank will verify the EIN or SSN against the business structure you stated. If you say you are an LLC but provide an SSN instead of an EIN, the process will be rejected. If you say you are a sole proprietor and provide an SSN, that is acceptable.

What happens if you open the account with an SSN and later need an EIN

If you started as a sole proprietor with an SSN and later form an LLC or hire employees, you will need to obtain an EIN and notify the bank. The bank may ask you to close the old account and open a new one under the EIN, or they may allow you to update the account number on file.

This process varies by bank. Some will handle it as a straightforward update; others treat it as closing one account and opening another. Contact your bank's business services department to ask what they require.

The longer you wait to notify the bank, the more complicated the transition becomes, especially if you have already received tax documents or business credit reports under the SSN. It is easier to get the EIN before you open the account if you know you will need one.

The difference between an EIN and a business license

An EIN is a federal tax identification number issued by the IRS. A business license is a local or state permit that says you are allowed to operate a business in that jurisdiction. They are separate things, and the bank requires the EIN, not the license.

Some states and cities require a business license before you can open a bank account. Check with your city or county clerk's office to see if one is required where you operate. If it is, you will need both the EIN and the license to complete the bank process.

The EIN alone does not give you permission to operate. It only identifies your business to the IRS for tax purposes.

Frequently Asked Questions

Can I use my Social Security number if I have an LLC?

No. An LLC is a separate legal entity, and banks will not accept an SSN for it. You must obtain an EIN first. The EIN is free and takes 15 minutes to request online.

What if I request an EIN but the bank rejects it?

The bank usually rejects an EIN if it does not match the business structure you stated, or if the IRS system has not yet recorded it. Verify the EIN is correct and that you told the bank the right business structure. If the issue persists, contact the bank's business services team and ask what information they need.

Do I need an EIN if I am a sole proprietor with no employees?

No. You can use your Social Security number instead. However, if you plan to hire employees later, you will need to obtain an EIN and update your bank account information.

How long does it take to get an EIN?

If you request online, you receive the number when ready. If you request by phone, mail, or fax, it takes one to four weeks. You do not need to wait for the confirmation letter in the mail to use the number.

Can I open a business bank account before I have an EIN?

Only if you are a sole proprietor using your Social Security number. All other business structures require an EIN before the bank will open the account. Since the EIN is free and issued when ready online, most people obtain it first.