Washington Child Support Guidelines (2026 Updates)
The 2026 state guidelines provide clear estimates for 3 children and a $10,200 monthly income. By examining the $10,200 tier, we can establish the mathematical baseline used by King County judges.
Breakdown of the $10,200 Calculation
The $2,670 amount for 3 children at the $10,200 level was established by the Washington State Legislature using updated economic data. This ensures $2,670 is sufficient to sustain the children's needs.
Standard Mid-Income Calculation
Your $10,200 income falls within the standard economic schedule. This means the $2,670 figure is the presumptive legal standard. Want a complete breakdown including deviations and expenses? Calculate your full worksheet
Presumptive Amount
$2,670
Schedule Bracket
Standard Limit
Large Family Analysis
Raising 3 children involves 'economies of scale'. The multiplier applied to the base income accounts for shared household costs. While the total of $2,670 is higher than for one child, the per-child cost is lower, reflecting common shared resources.
The SSR and Low-Income Safeguards
Regardless of your share of the $10,200, the SSR of $2,394 may apply if your net income is low. The court's priority is the child, but they must also ensure the payor can function within the $2,670 limit.
Filing in King County Superior Court
In King County Superior Court, located in Seattle, child support orders based on a $10,200 combined income are filed with theKing County Superior Court clerk at 516 3rd Ave, Room E-609, Seattle, WA 98104. Filing fees inKing County are $314. Once filed, the presumptive$2,670/mo order for 3 children becomes the baseline unless either parent requests a deviation hearing.
Income Bracket Context
At $10,200/mo, this household falls in the upper income bracket of Washington's 2026 schedule — above the state median of $7,114/mo. At this level, courts have wider discretion to order above the presumptive $2,670, particularly for lifestyle-based deviation arguments in King County.
Deviation Likelihood in King County
At the $10,200 level, deviation requests are less common but still possible in King County. The most frequent grounds are extraordinary healthcare costs, shared custody arrangements, or documented debts. The presumptive $2,670 is upheld in the majority of standard cases at this income tier.
Children-Specific Insight
For 3 children at $10,200/mo, Washington's 2026 schedule applies an economies-of-scale reduction. The $2,670 total works out to $890/mo per child — compared to $1,473 for one child at the same income. This reflects shared costs like housing and utilities that don't scale linearly with each additional child.
Related Income Tiers
Parents earning slightly more than $10,200 — at $10,300/mo — would face a presumptive order of $2,685/mo for 3 children in Washington. Those earning slightly less at $10,100/mo would owe $2,655/mo. These neighboring brackets help illustrate how Washington's 2026 schedule scales support incrementally with income.
Application in King County Superior Court
While the 2026 economic schedule is uniform statewide, the King County Superior Court handles procedural enforcement. In King County, judges may require additional proof of income before finalizing the $2,670 order.
Calculation Summary & Requirements
Successfully managing support at the $10,200 level starts with knowing the 2026 rules. For 3 children, the $2,670 calculation is the framework for all negotiations and orders in King County.
Accuracy & Legal Status
The $2,670 amount and other calculations provided for a $10,200 income are estimates based on the 2026 Washington Child Support Schedule. Actual orders in King County may vary based on case details, discretion, and local rules.