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Verification of Employment

Verification of Employment

For current or former King County employees

King County partners with The Work Number, an Income and Employment Verification service, to meet all verification of employment needs. This ensures speedy, secure, auditable, and legally compliant responses that protect the personal information of our employees and meet the needs of verifiers more quickly.

In order to use the service, users will need to register as either a commercial entity, government entity, or employee. There are self-service features available free for employees, but The Work Number charges a standard fee for verification requested by other entities (i.e. banks, mortgage companies, financial institutions, prospective employers, landlords, etc.).



Verifiers may also need:

  • To register for a verifier account at
  • The King County company code, which is 33081, and
  • Employee authorization via signature or Salary Key.


Visit or click above to get started.

  • Self-print a Verification of Employment and/or Income

  • View reports on their requestors

  • Print immigration letters

  • Manage their “Salary Key

  • Receive dates of employment
  • Receive verification of income
  • Receive up to two years of salary history
For support or questions, please contact The Work Number directly at 1-800-367-5690, or by email at