Do You Need an EIN to Open a Business Bank Account?
LLCs, corporations, and partnerships need an EIN. Sole proprietors usually don’t — but should get one anyway. Here’s exactly what you need and how to get an EIN in 5 minutes.
Short answer: it depends on your business structure. LLCs with more than one member, corporations, and partnerships need an EIN. Sole proprietors and single-member LLCs technically don't — but there are good reasons to get one anyway.
Here's the breakdown.
Who Needs an EIN
| Business Type | EIN Required for Banking? | Notes |
|--------------|--------------------------|-------|
| Sole proprietor (no employees) | No | Can use SSN |
| Sole proprietor (with employees) | Yes | Required for payroll tax reporting |
| Single-member LLC | Depends on bank | Some accept SSN, many require EIN |
| Multi-member LLC | Yes | Cannot use a personal SSN |
| Corporation (S-Corp or C-Corp) | Yes | Always required |
| Partnership | Yes | Always required |
| Nonprofit | Yes | Always required |
Why You Should Get an EIN Even If You Don't Need One
If you're a sole proprietor or single-member LLC, you can technically open a business bank account with just your Social Security Number. But here's why you shouldn't:
Your SSN stays private. Every form, application, and document that requires your business tax ID will use your EIN instead of your SSN. That means less exposure of your most sensitive personal identifier.
Looks more professional. Vendors, banks, and clients who request your tax information see a business EIN, not a personal SSN. It signals that you're a real business, not a side hustle using a personal account.
Required if you ever hire. The moment you bring on an employee — even a part-time contractor who should receive a 1099 — you'll need an EIN for tax reporting. Get it now so you don't scramble later.
Makes future banking easier. Some banks that technically accept an SSN for sole proprietors still prefer an EIN. Having one eliminates any friction when opening accounts, applying for credit, or setting up merchant services.
It's free and takes 5 minutes. There is no cost, no annual renewal, and the online application takes about 5 minutes. There's genuinely no downside.
How to Get an EIN (5-Minute Process)
- Go to IRS.gov EIN application
- Click "Apply Online Now"
- Select your entity type (sole proprietor, LLC, corporation, etc.)
- Enter the responsible party's information (that's you, the owner)
- Answer a few questions about your business
- Submit — you'll receive your EIN immediately on screen
- Save or print the confirmation (CP 575 letter). Banks will ask for this.
Important: The online application is available Monday-Friday, 7am-10pm Eastern. If you apply outside those hours, you'll need to submit Form SS-4 by mail or fax (which takes 4-6 weeks).
Lost your EIN letter? Call the IRS Business & Specialty Tax Line at 800-829-4933 and request a 147C verification letter. You'll need to verify your identity as an authorized person for the business.
What Banks Actually Ask For
When you apply for a business bank account, the bank needs to verify your business identity under Know Your Customer (KYC) regulations. Here's what they'll request related to your EIN:
- EIN Confirmation Letter (CP 575 or 147C) — This is the document the IRS sends after you receive your EIN. It's not the same as the EIN number itself — it's proof from the IRS that the number belongs to your business.
- If using SSN instead: The bank will ask for your Social Security Number on the application and may require additional identity verification.
Some banks also cross-reference your EIN with the IRS database during the application process. If your EIN was recently issued (same day), there's occasionally a brief delay before it appears in the IRS system. If this happens, try again the next business day.
Frequently Asked Questions
Can I open a business bank account with just my Social Security Number?
If you're a sole proprietor with no employees and no LLC, most banks will accept your SSN. However, some banks and fintech platforms require an EIN regardless of business type. Check with your specific bank before applying.
Can I open a business bank account with just an EIN and no SSN?
No. Banks are required to collect the SSN or ITIN of at least one controlling individual (the owner) for identity verification under the Corporate Transparency Act and Bank Secrecy Act. Your EIN identifies your business — your SSN identifies you personally. Both are needed.
How long after getting an EIN can I open a bank account?
Usually immediately. Most banks can verify a new EIN within the same business day. If you apply for your EIN and bank account on the same day and the bank can't verify, wait 24 hours and try again.
Can I use the same EIN for multiple business bank accounts?
Yes. Your EIN is tied to your business entity, not to a specific bank. You can open accounts at multiple banks using the same EIN.
Do I need a new EIN if I change my business name or structure?
Changing your business name: No, same EIN. Changing your business structure (e.g., sole proprietorship to LLC, or LLC to corporation): Yes, you need a new EIN. The IRS treats a change in entity type as a new entity.
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*Once you have your EIN, opening a business bank account takes about 10 minutes. Get started with Holdings →*