Washington Child Support Guidelines (2026 Updates)
Washington's 2026 child support laws are designed to be predictable. This review explains how the state arrives at the support figure for 2 children at the $6,400 mark, providing clarity for the process in Benton County.
Breakdown of the $6,400 Calculation
Washington's 2026 schedule provides a specific line item for $6,400 net income. For families with 2 children, this dictates a $1,626 base obligation, though Benton County judges may deviate for cause.
Standard Mid-Income Calculation
Your $6,400 income falls within the standard economic schedule. This means the $1,626 figure is the presumptive legal standard. Want a complete breakdown including deviations and expenses? Calculate your full worksheet
Presumptive Amount
$1,626
Schedule Bracket
Standard Limit
The SSR and Low-Income Safeguards
The 2026 Washington schedule incorporates the $2,394 SSR. For a $6,400 income, the $1,626 obligation is subject to a check to ensure the payor isn't reduced to a net income below the poverty threshold.
Filing in Benton County Superior Court
In Benton County Superior Court, located in Prosser, child support orders based on a $6,400 combined income are filed with theBenton/Franklin Superior Court clerk at 7122 W Okanogan Pl, Bldg A, Kennewick, WA 99336. Filing fees inBenton County are $250 - $314. Once filed, the presumptive$1,626/mo order for 2 children becomes the baseline unless either parent requests a deviation hearing.
Income Bracket Context
At $6,400/mo, this household sits within Washington's standard mid-range bracket on the 2026 schedule, near the state median of $7,114/mo. The presumptive $1,626 for 2 children is typically applied as-is at this level, with fewer deviations than lower or higher income tiers.
Deviation Likelihood in Benton County
At the $6,400 level, deviation requests are less common but still possible in Benton County. The most frequent grounds are extraordinary healthcare costs, shared custody arrangements, or documented debts. The presumptive $1,626 is upheld in the majority of standard cases at this income tier.
Children-Specific Insight
The $1,626 for 2 children at $6,400/mo reflects Washington's standard two-child rate. Compared to a one-child order ($1,073) at the same income, the second child adds $553/mo — a 52% increase rather than a full doubling, reflecting shared household costs.
Related Income Tiers
Parents earning slightly more than $6,400 — at $6,500/mo — would face a presumptive order of $1,638/mo for 2 children in Washington. Those earning slightly less at $6,300/mo would owe $1,618/mo. These neighboring brackets help illustrate how Washington's 2026 schedule scales support incrementally with income.
Application in Benton County Superior Court
While the 2026 economic schedule is uniform statewide, the Benton/Franklin Superior Court handles procedural enforcement. In Benton County, judges may require additional proof of income before finalizing the $1,626 order.
Calculation Summary & Requirements
Determining support for a $6,400 income in Washington is a multi-step process. While the 2026 tables set a $1,626 baseline for 2 children, the final order in Benton County considers deviations and the SSR.
Accuracy & Legal Status
While we strive for accuracy, these figures for $6,400 are for informational purposes. The 2026 guidelines are subject to change, and the Benton County Superior Court has the final authority on all support amounts.