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Our services include:

  • Accounting / Financial Management

     Maintains the county's central accounting records and preparation of county wide financial reports and official statements. Payments of the county's obligations, billing and collection.
  • Benefits, Payroll and Retirement

     Administers enrollment of employees in benefits and state retirement plans, and processes payroll.
  • Business Development & Contract Compliance

    Administers the county’s small business programs, apprenticeship program for capital construction projects, and regional certification for small contractors and suppliers.
  • Procurement & Payables

     Assists vendors and organizations to do business with the County. Provides procurement and contract information.
  • Treasury Services

     Collects, distributes and invests property taxes and other public revenues, as well as manages long term debt payments, for King County and other taxing districts.

Facts ... Did you know?

  • King County Treasury Operations managed nearly $6.7 billion investment pool for King County agencies and local districts in 2017.
  • 10,320 vendor accounts, representing 9,889 businesses, are registered on Procurement’s Online Vendor Registration (OVR) system as of July 2014. Approximately 10% increase in number of vendor accounts, and 30% increase in number of represented businesses since March 2013.
  • Purchases of copy paper by County agencies were reduced by 21% from 2010 to 2013; saving over $200,000.
  • By moving to paperless paystubs in 2013, the county will save more than $120,000 per year in printing and distribution costs of producing more than 10,000 paper paystubs every two weeks.

Contact Information

Telephone numbers

  • General Questions (206) 263-9258
  • Property Tax Questions (206) 263-2890
  • Receiving Payment From King County (206) 263-9276
  • Payments Owed to King County (206) 477-4393

Fax: 206-296-7670

Street Address:

Department of Executive Services
Finance and Business Operations Division
401 Fifth Avenue
Seattle, WA 98104-2333

Office Hours: 8 a.m. - 5 p.m. Division Director: Ken Guy