Keep yourself and your practice safe from fraud. We have found unauthorized uses of Electronic Filing Identification Number (EFINs) and Preparer Tax Identification Number (PTINs).
EFIN
To protect your practice, we suggest that you check your account to verify that you filed the number of returns showing under your EFIN. You can access your e-file information through e-services.
Report any misuse of your EFIN number by contacting the e-services help desk at 866-255-0654.
For more information about EFINs, see FAQs about electronic filing identification numbers (EFIN).
PTIN
If you suspect someone else has used your PTIN, call the PTIN hotline at 877-613-PTIN (7846) or you can submit the Form 14157, Return Preparer Complaint PDF.