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Employer Identification Number (EIN)

What Is Employer Identification Number (EIN)?

An Employer Identification Number (EIN) is a unique nine-digit number issued by the Internal Revenue Service (IRS) to identify businesses for tax purposes.

It functions similarly to a Social Security number but is used for businesses and organizations.

Why It Matters

An EIN allows businesses to file tax returns, report employee wages, and conduct financial transactions.

It is required for many business activities, including hiring employees, opening business bank accounts, and filing certain tax forms.

How EIN Works

Businesses apply for an EIN through the IRS.

Once assigned, the number is used to:

  • file business tax returns
  • report payroll taxes
  • issue tax documents such as W-2 or 1099 forms

The EIN remains associated with the business entity.

Example

If a small business hires employees, it must obtain an EIN to report payroll taxes and provide W-2 forms to employees.

EIN vs Social Security Number

  • An EIN identifies a business.
  • A Social Security number identifies an individual taxpayer.

FAQs About EIN

Who needs an EIN?
Businesses with employees or certain tax filing requirements typically need one.

Can a business operate without an EIN?
Some sole proprietors may use their Social Security number, though many still obtain an EIN.

How do you apply for an EIN?
Businesses can apply directly through the IRS website.

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