Washington Child Support Guidelines (2026 Updates)
For parents in Washington with a total net monthly income of $15,900, calculating support is vital for financial planning. This guide explains how the 2026 guidelines apply to families with one child at the $15,900 tier.
Breakdown of the $15,900 Calculation
At the $15,900 net income level, the 2026 tables specify a base obligation of $1,960 for one child. This covers necessities like food and housing, while extraordinary expenses are added separately in Thurston County.
High-Income Notice
Because your combined income of $15,900 exceeds the $12,000 statutory ceiling, the $1,960 base is a minimum starting point. Judges in Thurston County, WA have discretion to increase support proportional to the family's standard of living. Want a complete breakdown including deviations and expenses? Calculate your full worksheet
Note: The 45% net income cap remains a vital legal defense.
The SSR and Low-Income Safeguards
At the $15,900 income level, SSR rules are critical. The $2,394 threshold ensures that no parent is ordered to pay $1,960 if it leaves them with less than the defined minimum for self-sustenance.
Filing in Thurston County Superior Court
In Thurston County Superior Court, located in Olympia, child support orders based on a $15,900 combined income are filed with theThurston County Superior Court clerk at 2000 Lakeridge Dr SW, Olympia, WA 98502. Filing fees inThurston County are $250 - $314. Once filed, the presumptive$1,960/mo order for one child becomes the baseline unless either parent requests a deviation hearing.
Income Bracket Context
At $15,900/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 $1,960, particularly for lifestyle-based deviation arguments in Thurston County.
Deviation Likelihood in Thurston County
High-income deviation arguments are frequently raised in Thurston County at the $15,900 level. Since the schedule caps at $12,000 combined net income, the $1,960 figure is a floor — not a ceiling. Attorneys often argue for upward deviations based on the children's established standard of living and available parental resources.
Children-Specific Insight
For one child at $15,900/mo, the $1,960 obligation reflects Washington's base rate. Parents adding a second child to the order would see this figure rise to $3,030 — an increase of $1,070 — reflecting the additional resources required under the 2026 schedule.
Related Income Tiers
Parents earning slightly more than $15,900 — at $16,000/mo — would face a presumptive order of $1,969/mo for one child in Washington. Those earning slightly less at $15,800/mo would owe $1,951/mo. These neighboring brackets help illustrate how Washington's 2026 schedule scales support incrementally with income.
Application in Thurston County Superior Court
While the 2026 economic schedule is uniform statewide, the Thurston County Superior Court handles procedural enforcement. In Thurston County, judges may require additional proof of income before finalizing the $1,960 order.
Calculation Summary & Requirements
As you proceed in Washington, keep the $15,900 and $1,960 figures in mind. These 2026 benchmarks for one child are the primary tools used by Thurston County commissioners to establish sustainable orders.
Accuracy & Legal Status
The $1,960 amount for a $15,900 income is a starting point. The 2026 schedule allows for deviations and adjustments that can change the final order in Thurston County. This website does not provide legal advice.