Child support payments are made at the Division of Child Support. You may either make the payment at your local office or mail it to: Washington State Support Registry PO Box 45868 Olympia, WA 98504.
You can also pay online or by telephone. Contact DCS to find out how at www.dshs.wa.gov and click on "Child Support", and then click on "How do I pay my Child Support". You can also contact DCS at 1-800-442-5437.