Recommended by IRS
Employer Identification NumberInformation 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.
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12th Annual IRS-TPC Joint Research Conference on Tax Administration
The Internal Revenue Service and the Urban-Brookings Tax Policy Center invite you to virtually attend the only annual conference focused exclusively on tax administration research. Researchers from the IRS, other government agencies, academia, and private organizations will discuss some of the latest analyses seeking to make tax administration as effective as possible. The presentations and discussions will be streamed live via Zoom Webinar, and the audience will be able to submit questions for the discussions.
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Practitioner Priority Service
Tax practitioners have long served an important role in our nation's tax collection system as a conduit between taxpayers and the IRS. The Practitioner Priority Service® (PPS) is your first point of contact for account-related issues. Our Practitioner Priority Service® is a professional support line that staffed by IRS customer service representatives specially trained to handle practitioners' accounts questions.
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Tax Professionals
Frequently asked questions: PTIN application/renewal assistance
Using the online system, fees, troubleshooting tips.
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Tax Professionals
Protect your clients; protect yourself
IRS encourages tax professionals to stay connected to learn how to better protect taxpayer information. Learn about events and campaigns and see tax scam alerts.
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Tax Professionals
SOI Tax Stats - Definitions of selected terms and concepts for income from trusts and estates
SOI Tax Stats - Income from Trusts and Estates Study Terms and Concepts
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SOI Tax stats IRS data book glossary of terms
SOI Tax stats - IRS data book glossary
About IRS
Tax Professionals
Written Testimony of Charles P. Rettig, Commissioner Internal Revenue Service before the House Ways and Means Committee, Subcommittee on Oversight on the Filing Season and IRS Operations
March 17, 2022 — Commissioner Rettig speaks before the House Ways and Means Committee, Subcommittee on Oversight on the filing season and IRS operations.
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News Media, Tax Professionals
Written Testimony of Charles P. Rettig, Commissioner, Internal Revenue Service, before the House Oversight Committee and Reform Committee Subcommittee on Government Operations on the Filing Season and IRS Operations
April 21, 2022 — The Commissioner speaks before the House Oversight Committee and Reform Committee Subcommittee on Government Operations on the Filing Season and IRS Operations.
About IRS
Written Testimony of Charles P. Rettig Commissioner Internal Revenue Service Before the Senate Appropriations Committee Subcommittee on Financial Services and General Government on the Filing Season and the IRS Budget
May 3, 2022 — The Commissioner speaks before the Senate Appropriations Committee Subcommittee on Financial Services and General Government on the Filing Season and the IRS Budget.
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