What Is an EIN (Employer Identification Number)?
An EIN (Employer Identification Number) is your business's federal tax identification number — a 9-digit number the IRS uses to identify your business, formatted as XX-XXXXXXX. Think of it as a Social Security number for your business. Most businesses need one to open a bank account, hire employees, apply for business credit, or file certain tax forms. ZenBusiness can obtain your EIN on your behalf as an add-on to your formation order.
Why Your Business Needs an EIN
Despite the word "employer" in the name, you don't need employees to need an EIN. Most LLCs and corporations need one because:
Banking: Virtually all banks require an EIN to open a business checking account. Without an EIN, you can't effectively separate your business and personal finances.
Taxes: The IRS uses your EIN to track your business's tax filings and payments. Even single-member LLCs often need an EIN for certain forms.
Hiring: If you ever hire employees — even one — an EIN is mandatory for payroll tax reporting.
Credit: Business credit cards, lines of credit, and loans typically require an EIN.
Privacy: Using an EIN instead of your personal Social Security number on business forms reduces your identity theft exposure.
Vendor relationships: Many vendors and contractors request your EIN on W-9 forms before doing business with you.
What an EIN Looks Like
An EIN is a 9-digit number formatted as two digits, a hyphen, then seven digits: XX-XXXXXXX. For example: 12-3456789.
It's assigned permanently to your business by the IRS. Once issued, your EIN doesn't change — even if you change your business name or address. It follows the entity for its entire life.
When You'll Receive Your EIN
ZenBusiness files for your EIN after the state approves your formation. You cannot get an EIN before your business legally exists. Typical timeline:
- Day 1: ZenBusiness submits your formation to the state
- Days 7–28: State approves your formation (varies by state)
- Days 30–35: ZenBusiness files for your EIN with the IRS
- Days 33–38: EIN appears in your ZenBusiness dashboard documents
The IRS typically issues EINs within a few business days of the online application.
Frequently Asked Questions
Do I need an EIN if I'm a sole proprietor with no employees?
Most sole proprietors can technically use their Social Security number instead of an EIN for tax purposes. However, getting an EIN is strongly recommended — it keeps your SSN off business documents and reduces identity theft risk. Banks and vendors also often prefer or require an EIN.
Is my EIN the same as my state tax ID?
No — these are different numbers. Your EIN is issued by the federal IRS. Many states also require a separate state tax ID number for state tax reporting. Your state tax ID is obtained from your state's tax authority, not the IRS.
Can I get an EIN if I don't have a Social Security number?
Yes — non-U.S. residents can apply using an Individual Taxpayer Identification Number (ITIN) or by filing IRS Form SS-4 manually. See How to Get an EIN Without a Social Security Number.
Is an EIN free from the IRS?
Yes — the IRS does not charge a fee to issue an EIN. You can apply directly at irs.gov for free. ZenBusiness charges a service fee to obtain it on your behalf as a convenience.