With so many scammers these days, it's good to know that you can contact the IRS directly to confirm the identity of an IRS employee. For enrolled practitioners and other tax professionals, there are also direct numbers for the IRS e-file program as well as PTIN inquiries. We created a handy image version that you can download, print, and share, as well! (these contact numbers are all current as of May 4, 2018).
Information provided by: the IRS Office of Enrolled Agent Policy and Management
Official IRS Employee Verification Telephone Number
Please call 1-800-366-4484 to verify if someone is an IRS employee.
Preparer Tax Identification Number (PTIN) inquiries