Unauthorized Use of an EFIN

QuickAlerts for Authorized IRS e-file Providers/EROs February 11, 2026
e-file Resources QuickAlerts Library QuickAlerts Article QuickAlerts Brochure e-file for Tax Pros Software Developers IRS.gov Refund Information Other Useful Links Tax Professionals Home All Forms and Instructions Stakeholders Partners' Headliners Training and Communication Tools e-Services Disaster Relief Internal Revenue Bulletins	Subject:  Unauthorized Use of an EFIN  ATTN: Authorized IRS e-file Providers/EROs As a reminder, Authorized IRS e-file Providers are required to follow the safeguarding and unauthorized use policies set forth in Publication 3112, IRS e-file Application and Participation, and Publication 1345, Authorized IRS e-file Providers of Individual Income Tax Returns. Providers must protect their EFINs from unauthorized use and never share them. Prohibited actions include: Accepting payment for the use of an EFIN or purchasing an EFIN from someone else. (e.g., renting/leasing/selling). Transferring EFINs to another entity when transferring the business by sale, gift or other disposition. Selling software for resale (re-branding, white label, etc.), the software developer must ensure that the original purchaser does not resell the software with the original purchasers EFIN.   Only the IRS has the authority to issue EFINs. An Electronic Return Originator (ERO) may only initiate the electronic submission of returns that the ERO prepared or collected from a taxpayer or an Authorized IRS e-file Provider. Software developers and transmitters should validate and request proof of ownership of the EFIN from the IRS e-file application. Back to Top Thank you for subscribing to QuickAlerts for Authorized IRS e-file Providers/EROs, an IRS e-mail service. If you have an idea or a question related to QuickAlerts you can contact us by e-mail. Submissions which are not related to QuickAlerts will not be processed. If you have tax related questions you should pursue normal customer service channels provided on IRS.gov. If you know someone who might want to subscribe to this mailing list, please forward this message to them so they can subscribe. This message was distributed automatically. Please Do Not Reply To This Message.

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