How do I compute the amount to withhold each payday?

The Income Withholding for Support tells you how much to withhold each month.

  • If you pay once a month, withhold that amount (unless it's more than 50% of the employee's net disposable income) from each paycheck
  • If you pay more than once a month, here's how to calculate the amount from each check: for each month, divide the monthly withhold amount by the number of paychecks for that month, then withhold that much from each check.
  • If the OWI asks you to withhold a certain percentage of the employee's earnings, withhold that percentage amount each payday.
  • US Mail Payment Address
    • Washington State Support Registry
      PO Box 45868
      Olympia, WA 98504-5868