Payroll and Self-Employment Tax Information
Payroll and self-employment taxes, which provide operating revenue for TriMet, are collected and administered by the Oregon Department of Revenue.
Effective January 1, 2017, the tax rate increased to 0.7437% of the wages paid by an employer and the net earnings from self-employment for services performed within the TriMet District boundary. Employers should apply the new rate with their reporting related to wages for the first quarter of 2017. Self-employed individuals should use the new rate when first reporting earnings for 2017.
TriMet District boundary
District boundary maps
To find out if a business or property is located within the TriMet District boundary, check the interactive map, refer to the list of zip codes below or the District Boundary Map at right, or contact 503-962-6466.
Zip codes completely within the TriMet District
Zip codes partially within the TriMet District
P.O. Box zip codes completely within the TriMet District