This article and video explain spousal maintenance (alimony) in Washington State. They also explain undifferentiated family support.Only the income of the parents of the children whose support is at issue shall be calculated for purposes of calculating the basic support obligation. See how parenting time affects the total. The alimony lawyers at S.L. Pitts in Seattle, Washington have decades of experience helping spouses navigate this complicated issue successfully. Unlike child support, there is no precise formula to determine the appropriate amount. The court considers several factors in addition to the parties' income. You and the other parent will fill out Child Support Worksheets. Use our free online child custody calculator to determine a custody payment in Washington State in 2024. You and the other parent will fill out Child Support Worksheets.