Payroll Taxes


Oregon Tax Employer Reporting System (OTTER) 


OTTER is a free Windows based program provided by the Oregon Employment Department, for the electronic filing of the Oregon Combined Payroll Tax reports. If you do not have a Windows based program, you can file your quarterly report with SETRON if you have less than 50 employees.   


 OTTER Version 18.1.0 is available for download and installation.

*You will need to download this latest version if you plan to file using the OTTER system in 2018*



Please find instructions and information below to download and install OTTER.  


Resource Center 


Please make sure you read the 2018 OTTER Installation Instructions before downloading OTTER 2018.


  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows 10​
If the link in your OTTER program does not work, you can upload your OTTER report utilizing this secure server.





OTTER Technical Support

Oregon Employment Department
875 Union St. NE 
Salem, OR 97311

Hours of Operation

8:00 AM  - 5:00 PM


Phone: 503-947-1544 option 1
Fax: 503-947-1487

TTY: 7-1-1
Internet Relay: Sprint Relay Online

*During peak reporting times it may take 24-48 hours for an OTTER/SETRON Support Representative to return your call. 

Many questions can be answered by looking at our Frequently Asked Questions Sheet​.