Washington Child Support Guidelines (2026 Updates)
The transition to a dual-household structure relies on the accurate calculation of support based on your combined net income of $10,400. In Whatcom County, WA, this follows the Income Shares Model to benefit one child.
Breakdown of the $10,400 Calculation
For a combined income of $10,400, the 2026 guidelines set the presumptive support for one child at $1,495. This ensures the transfer payment fairly reflects the total resources available to the family.
Standard Mid-Income Calculation
Your $10,400 income falls within the standard economic schedule. This means the $1,495 figure is the presumptive legal standard. Want a complete breakdown including deviations and expenses? Calculate your full worksheet
Presumptive Amount
$1,495
Schedule Bracket
Standard Limit
The SSR and Low-Income Safeguards
The child support formula for $10,400 includes the SSR protection. For 2026, this is $2,394. It guarantees the parent paying $1,495 isn't left with less than $2,394 to cover their own basic rent and food.
Filing in Whatcom County Superior Court
In Whatcom County Superior Court, located in Bellingham, child support orders based on a $10,400 combined income are filed with theWhatcom County Superior Court clerk at 311 Grand Ave, Ste 301, Bellingham, WA 98225. Filing fees inWhatcom County are $250 - $314. Once filed, the presumptive$1,495/mo order for one child 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 $1,495, particularly for lifestyle-based deviation arguments in Whatcom County.
Deviation Likelihood in Whatcom County
At the $10,400 level, deviation requests are less common but still possible in Whatcom County. The most frequent grounds are extraordinary healthcare costs, shared custody arrangements, or documented debts. The presumptive $1,495 is upheld in the majority of standard cases at this income tier.
Children-Specific Insight
For one child at $10,400/mo, the $1,495 obligation reflects Washington's base rate. Parents adding a second child to the order would see this figure rise to $2,258 — an increase of $763 — reflecting the additional resources required under the 2026 schedule.
Related Income Tiers
Parents earning slightly more than $10,400 — at $10,500/mo — would face a presumptive order of $1,507/mo for one child in Washington. Those earning slightly less at $10,300/mo would owe $1,484/mo. These neighboring brackets help illustrate how Washington's 2026 schedule scales support incrementally with income.
Application in Whatcom County Superior Court
While the 2026 economic schedule is uniform statewide, the Whatcom County Superior Court handles procedural enforcement. In Whatcom County, judges may require additional proof of income before finalizing the $1,495 order.
Calculation Summary & Requirements
In summary, the 2026 guidelines for $10,400 provide a clear expectation of $1,495 for one child. While Whatcom County rules add complexity, the $10,400 baseline remains the most important factor.
Accuracy & Legal Status
DSHS and the Whatcom County Superior Court are the final authorities on support orders. These 2026 $10,400 and $1,495 estimates for one child help explain the general legal framework in Whatcom County, WA.