Washington child support
Washington Child Support Calculator
Estimate monthly child support using Washington guidelines. Adjust both incomes, parenting time, and the number of children to see how each factor changes the amount.
Updated for 2026 Washington guidelinesYour situation
Your estimate
Estimated monthly child support
$454/mo
paid by you to the other parent
For an exact calculation, use the official Washington child support calculator.
Estimate only. Not legal advice. Confirm current guidelines with the official Washington child support agency.
How Washington calculates child support
State-specific details including deviation factors, modification procedures, and enforcement rules are available through the official Washington child support agency. Filing fees for divorce or custody proceedings in Washington typically run $314. Family attorneys in Washington generally charge $250 to $425 per hour.
Reach a child support agreement peacefully.
SerenityNow guides both parents through child support, parenting time, and every open issue, producing a court ready agreement your judge can sign. As low as $500 flat.