Payroll records must contain the worker’s:
Washington State law requires employers to keep employees' payroll records for at least three years. Employees have the right to request copies of these records at any reasonable time. The employer can keep the records in either an electronic and/or written format.

  • Full name
  • Home address
  • Occupation
  • Date of birth (for employees under 18)
  • Employment start date
  • Time of day and day of week the employee's workweek begins
  • Actual hours worked on a daily and weekly basis (note: if reporting under more than one
    workers’ compensation risk class, distinguish hours worked in each class)
    Rate(s) of pay
  • Total wages earned (including straight time, overtime, piece work units earned, and bonuses)
  • Tips and service charges earned
  • Addition to or deductions from wages
  • Additional records required for paid sick leave

You must keep additional records if you have employees under 18. Find out more here
https://lni.wa.gov/workers-rights/workplace-policies/payroll-and-personnel-records