How To Make A New or Forgotten EFIN

Last Updated: May 4, 2025

How to Make a New or Recover a Forgotten EFIN

If you’re a tax professional or planning to become one, your EFIN—Electronic Filing Identification Number—is essential. It’s what allows you to e-file tax returns with the IRS. But what happens if you need a new one or you’ve forgotten your existing EFIN? Here’s what you need to know.

What Is an EFIN?

An EFIN is issued by the IRS to tax preparers who have been approved to file tax returns electronically. Without it, you can’t e-file on behalf of clients.

1. Applying for a New EFIN

If you’re starting from scratch, here’s how to apply:

Step 1: Create an IRS e-Services Account
Visit the IRS e-Services website and register. You’ll need to provide your personal information, including Social Security Number, tax filing status, and other identifying details.

Step 2: Submit an Application for e-File
Once your account is approved, log in and fill out the IRS e-file application. You’ll include information about your firm, responsible parties, and the types of returns you plan to file.

Step 3: Pass a Suitability Check
The IRS will perform a background check that includes a credit history review, criminal check, and compliance with IRS filing and payment requirements.

Step 4: Get Your EFIN
If everything is in order, you’ll receive your EFIN in the mail or via your e-Services account. The process usually takes about 45 days.

2. Recovering a Forgotten EFIN

If you’ve already been issued an EFIN but lost track of it, here’s how to find it:

Option 1: Check Your IRS e-Services Account
Log into your account and look under the “Application Summary” section. Your EFIN should be listed there.

Option 2: Call the IRS e-Help Desk
You can contact the IRS e-Help Desk at 866-255-0654. Be prepared to verify your identity and provide any necessary information about your firm.

Option 3: Look at Prior IRS Correspondence
Your EFIN may be listed on old IRS letters, emails, or acceptance reports you’ve received.