To securely send us a file, please visit Protected Xchange: https://new.protectedxchange.com/seibelkatzcpa/login
It is recommended you create a login to send files rather than upload as a guest. We will be notified to approve your request when you first create your login and then you will be able to upload files.
For any excel files, please save them as a CSV file before uploading to the portal.
For those who have historically used ATOM, ATOM will no longer be available after this year. We encourage you to use Protected Xchange to send us information and use SafeSend for electronic delivery of your tax return. Please visit the SafeSend page on our website for more information on SafeSend.
Please download and save any documentation you want to keep that is in ATOM before 12/31/2026.
To use ATOM, please visit: https://login.atomanager.com/ATOM_ARM/webinfo.aspx
