Identity thieves increasingly target tax professionals. A thief who breaches the data of one tax return preparer can gain hundreds or thousands of taxpayers’ data. One way you can monitor for suspicious activity is to check how many federal tax returns have been filed with your Electronic Filing Identification Number (EFIN).
As part of the ongoing concerns about security and identity theft, the IRS recommends that you verify the number of returns submitted under your EFIN. Do this routinely and especially during filing season.
Verify your EFIN through IRS e-Services. If you do not have an e-Services account, then your first step would be to go to e-Services and register for an account.
Once you have logged into your e-Services account, follow these steps to verify the number of returns electronically filed with the IRS: