TriMet provides bus, light rail and commuter rail transit services in the Portland, Oregon, metro area. We connect people with their community, while easing traffic congestion and reducing air pollution—making the Portland area a better place to live. More
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, 2014, the tax rate increased to 0.7237% ($7.237 per $1,000) 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 2014. Self-employed individuals should use the new rate when first reporting earnings for 2014.
The 2003 Oregon Legislature provided TriMet with the authority to increase the rate over 10 years to help pay for new transit service throughout the region. The rate increases annually by 1/100 of a percent. In 2013, the payroll tax rate was increased an additional 0.001095 percent due to the withdrawal of the Boring area from the TriMet District.
August 2015 Update: In order to meet the demand for more transit service as our region grows, TriMet is proposing to increase the payroll and self-employment tax rate by 1/10th of one percent phased-in over 10 years. If approved, the median firm would see their tax increase by slightly more than $8 in the first year and by about $82 by the end of the decade, not including inflation. Learn more
TriMet District boundary
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