Federal Employer Identification Number (FEIN)

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IRS.gov Website

Federal Employer Identification Number (FEIN)

EIN
Employer Identification Number
FEIN
Federal Tax Identification (ID) Number


Forms and Instructions

Relevant Forms

Form SS-4 Application for Employer Identification Number
Instructions for Form SS-4, Application for Employer Identification Number

Form SS-4 (PR) Solicitud de Numero de Identificacion Patronal (EIN)
Instrucciones para la Forma SS-4PR, Solicitud de Numero de Identificacion Patronal (EIN)


Publications

Related Publications

Publication 1635 Understanding Your EIN

Publication 4248 Pre-Enrolled EIN Brochure

Links Inside Publications

Publication 15 - Circular E, Employer's Tax Guide - (Circular E), Employer's Tax Guide

1. Employer Identification Number (EIN). If you are required to report employment taxes or give tax statements...

Publication 80 - Circular SS - Federal Tax Guide for Employers in the U.S. Virgin Islands, Guam, American Samoa, and the Commonwealth of the Northern Mariana Islands - 1. Employer Identification Number (EIN)

1. Employer Identification Number (EIN). An employer identification number (EIN) is a nine-digit number that...

Publication 583 - Starting a Business and Keeping Records - Identification Numbers

Employer Identification Number (EIN). EINs are used to identify the tax accounts of employers, certain sole...

Frequently Asked Questions

FAQ - Small Business, Self-Employed, Other Business

I recently formed a limited liability company (LLC). The LLC has no employees, is not subject to relevant excise...

FAQ - Small Business, Self-Employed, Other Business

For IRS purposes, how do I classify a domestic limited liability company? Is it a sole proprietorship, partnership...

FAQ - Small Business, Self-Employed, Other Business

Under what circumstances am I required to change my employer identification number (EIN)? If you already have...

FAQ - Small Business, Self-Employed, Other Business

Does a small company need a tax ID number? A sole proprietor who does not have any employees and who does not...