EIN

Definition : Employer Identification Number
Category : Business » Business Terms
Country/Region : United States United States
Popularity :
Type :
Initialism

What does EIN mean?

Employer Identification Number (EIN), also known as the Federal Employer Identification Number (FEIN) or the Federal Tax Identification Number (Federal Tax ID Number), is a unique nine-digit number assigned by the Internal Revenue Service (IRS) to a business entity operating in the United States.

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Netherlands EIN Eindhoven Airport
Transport & Travel
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Airport Codes
Worldwide EIN Equivalent Input Noise
Academic & Science
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Electronics
Worldwide EIN Endometrial Intraepithelial Neoplasia
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Diseases & Conditions
Ireland EIN Aer Lingus
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Worldwide EIN EPODE International Network
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Medical Organizations

Frequently Asked Questions

What is the full form of EIN?

The full form of EIN is Employer Identification Number

What is the full form of EIN in Business?

Employer Identification Number

What is the full form of EIN in the United States?

Employer Identification Number

Translation

Translate Employer Identification Number into other languages

Citations Formatting rules vary by edition. Please verify against your required style manual.

Chicago Style

FullForms. "EIN." Accessed April 1, 2026. https://fullforms.com/EIN.

Harvard Style

FullForms (2026) 'EIN', FullForms.com. Available at: https://fullforms.com/EIN (Accessed: 01 April 2026).

MLA Style

"EIN." FullForms.com, 2026, https://fullforms.com/EIN. Accessed 01 Apr. 2026.

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