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.