The Washington County Oregon Transportation Development Tax (TDT) rates will increase by 3.901%, effective July 1, 2022.

Once the increase takes effect, the Washington County Transportation Development Tax rate for a single-family detached home, for example, will be $9,998 – an increase of $375 more than the 2021-22 rate of $9,623.

The Washington County Transportation Development Tax is based on the average estimated traffic generated by new development of that type and is paid by developers to fund transportation projects including road improvements, sidewalks, bike lanes and transit upgrades such as bus shelters.

A D V E R T I S E M E N T

A D V E R T I S E M E N T

TDT rates are adjusted annually based on a five-year rolling average of road construction, labor and right-of-way costs.

The rate increase was approved April 19 by the Washington County Board of Commissioners.

Washington County code calls for the Board to act on the Washington County Transportation Development Tax adjustments annually before May 1.

Kathryn Harrington is the Chair of the Washington County Commissioners.


--Bruce Armstrong

Post Date: 2022-05-09 12:25:15

Last Update: 2022-05-09 18:58:45