Washington Child Support Guidelines (2026 Updates)
Understanding Washington child support for a combined monthly net income of $10,400 requires reviewing the 2026 economic schedules. Whether filing in Lewis County or elsewhere, the base amount depends on the proportion of parental income dedicated to the children.
Breakdown of the $10,400 Calculation
Applying the Income Shares approach to a $10,400 income, Washington assumes parents would dedicate $2,258 of their combined resources to 2 children. This serves as the presumptive transfer payment.
Standard Mid-Income Calculation
Your $10,400 income falls within the standard economic schedule. This means the $2,258 figure is the presumptive legal standard. Want a complete breakdown including deviations and expenses? Calculate your full worksheet
Presumptive Amount
$2,258
Schedule Bracket
Standard Limit
The SSR and Low-Income Safeguards
Washington law ensures every parent retains a minimum income to survive. The 2026 SSR is fixed at $2,394. At the $10,400 level, the court verifies that the payor still retains $2,394 after the $2,258 payment.
Filing in Lewis County Superior Court
In Lewis County Superior Court, located in Chehalis, child support orders based on a $10,400 combined income are filed with theLewis County Superior Court clerk at 345 NW Pacific Ave, Chehalis, WA 98532. Filing fees inLewis County are $250 - $314. Once filed, the presumptive$2,258/mo order for 2 children becomes the baseline unless either parent requests a deviation hearing.
Income Bracket Context
At $10,400/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 $2,258, particularly for lifestyle-based deviation arguments in Lewis County.
Deviation Likelihood in Lewis County
At the $10,400 level, deviation requests are less common but still possible in Lewis County. The most frequent grounds are extraordinary healthcare costs, shared custody arrangements, or documented debts. The presumptive $2,258 is upheld in the majority of standard cases at this income tier.
Children-Specific Insight
The $2,258 for 2 children at $10,400/mo reflects Washington's standard two-child rate. Compared to a one-child order ($1,495) at the same income, the second child adds $763/mo — a 51% increase rather than a full doubling, reflecting shared household costs.
Related Income Tiers
Parents earning slightly more than $10,400 — at $10,500/mo — would face a presumptive order of $2,272/mo for 2 children in Washington. Those earning slightly less at $10,300/mo would owe $2,244/mo. These neighboring brackets help illustrate how Washington's 2026 schedule scales support incrementally with income.
Application in Lewis County Superior Court
While the 2026 economic schedule is uniform statewide, the Lewis County Superior Court handles procedural enforcement. In Lewis County, judges may require additional proof of income before finalizing the $2,258 order.
Calculation Summary & Requirements
Navigating the 2026 schedule for a $10,400 income is designed for fairness. For families with 2 children, the $2,258 basic obligation is the state's benchmark for care in Lewis County.
Accuracy & Legal Status
This content regarding $10,400 income and 2026 support is for educational use. The $2,258 amounts are based on standard state tables. Local practices in Lewis County may influence the final judicial order.