Payroll Taxes

Oregon Tax Employer Reporting (OTTER)
*Beginning the second week of October, some OTTER transfer files that were sent failed to receive an email confirmation. We are working to resolve the issue as soon as possible. If you do not receive your confirmation(s), please check your spam folder. If it is not there, please email OTTER Support with the affected BIN(s). Please do not send your file again as it may cause additional processing time. We apologize for any inconvenience.

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 must 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.  

**The new Statewide Transit Tax will not be included in OTTER. For more information about this tax, please visit the Oregon Department of Revenue's site:

Resource Center  





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
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.