Employee ID Number

Recommended by IRS

Employer Identification Number

Information about Employer Identification Numbers (EIN), also known as a Federal Tax Identification Number. An EIN is used to identify a business entity.

Apply for an Employer Identification Number (EIN) online
Information about how to apply online for an Employer Identification Number.
Do you need a new EIN?
Generally, businesses need a new EIN when their ownership or structure has changed.

E-file Form 2290

Learn the steps to e-file using Form 2290, the Heavy Highway Vehicle Use Tax Return for truckers.
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E-file for business and self employed taxpayers

IRS e-file and electronic payment options for employment taxes, information returns, partnerships, corporations, estates & trusts and returns for charities and nonprofit organizations.
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Using the correct name control in e-filing partnership tax returns

Using the Correct Name Control in e-filing Partnership Tax Returns
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IRIS Assurance Testing System (ATS)

Find ATS scenarios, known issues and solutions for the Information Return Intake System (IRIS).
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Using a Form 94x online signature PIN to e-file employment tax forms

Learn how to apply for a 10-digit signature PIN and become an IRS Authorized Signer. You would use the PIN to electronically sign your employment tax returns using IRS-approved software
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FAQs about electronic filing identification numbers (EFIN)

Get answers to frequently asked questions about getting and using an electronic filing identification number (EFIN) - used by authorized IRS e-file providers.
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Circular 230 practitioner e-Services access

Here you'll find e-file application instructions for Circular 230 users who want to access e-Services Transcript Delivery System and don't plan on participating in IRS e-file.
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Electronically submit your Form 8976, Notice of Intent to Operate Under Section 501(c)(4)

The Form 8976, Electronic Notice Filing System allows organizations to complete the registration/certification process, keeps account information current and enables organizations to receive secure, digital communications from the IRS.
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Country codes

Standard ISO-3166 country codes from the ISO, International Standards Organization.
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Schedule K-1, Form 1041 (Final)

Review a table on Schedules K-1 two dimensional bar code specifications for Form 1041.
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