RCW 26.19.075 · 2025 IRS Tax Brackets
Washington State child support begins with the standard schedule amount but courts can order more or less based on specific circumstances. This deviation calculator helps you estimate how qualifying factors under RCW 26.19.075 may adjust your support obligation above or below the 2026 Washington State Child Support Schedule amount.
Federal tax estimate based on 2025 IRS tax brackets. Standard deduction of $15,000 applied.
0.0% from 2026 standard
The Washington State Bar Association can help you find a licensed family law attorney near you.
A deviation is a court approved adjustment to the standard child support amount. Washington law under RCW 26.19.075 allows either parent to request a deviation when specific financial circumstances make the standard amount unjust or inappropriate. Deviations can go upward — increasing support — or downward — reducing it.
Courts may order above standard support when a child has extraordinary medical needs, significant educational expenses such as private school or tutoring, or when long distance parenting arrangements create substantial transportation costs that one parent bears alone.
Courts may reduce support below the standard amount when the paying parent has substantial prior debts from before the separation, supports children from other relationships, or when the child has significant independent assets or income of their own.
A judge does not automatically grant a deviation request. The requesting parent must show that applying the standard amount would be unjust given the specific circumstances. This calculator helps you estimate the adjusted amount but a family law attorney should be consulted before requesting a formal deviation.
When using a deviation calculator, it is vital to know which statutory factors the court legally recognizes. Under Washington law (RCW 26.19.075), judges will not grant a deviation for lifestyle preferences. You must qualify under specific legal categories.
If a parent’s income is temporarily inflated by a one-time bonus, inheritance, lottery winnings, or a short-term real estate sale, the court may deviate downward from using that specific year's tax returns. Courts can isolate baseline income from these nonrecurring windfalls when determining a just transfer payment.
While a step-parent or new live-in partner has no legal duty to support your child, their financial contributions to rent, groceries, and utilities change your financial position. A judge may use this household income to deny a downward deviation or justify an upward adjustment.
Standard child support schedules assume basic cost-of-living metrics. You can request a deviation if you pay for:
If the paying parent has a legal duty to support biological children from a different relationship, Washington law allows for a downward deviation. This ensures that children from a first or subsequent family are not financially starved by the current child support transfer payment.
Even if our deviation tool shows you qualify for an adjustment, a family law judge can still deny your request. The two most common reasons for denial in Washington courts are:
The court will reject any downward deviation if reducing the support payment pushes the receiving parent's household below the federal poverty line or leaves them unable to provide basic shelter and food for the child.
You cannot use estimates. If you request a deviation for extraordinary medical bills or travel, you must provide the court with receipts, clear invoices, and a history of payment records.
A child support deviation in Washington State is a court approved adjustment that sets support above or below the standard schedule amount. It is governed by RCW 26.19.075 and requires the requesting parent to show that the standard amount would be unjust given their specific circumstances.
Qualifying reasons for a downward deviation in Washington include significant debt obligations incurred before the separation, support obligations for children from other relationships, a child's significant independent assets or income, and other financial hardships that make the standard amount unjust.
Deviations from the Washington State child support schedule are determined by a judge based on the standards in RCW 26.19.075. This calculator provides an estimate based on the values you enter, but the final determination requires written findings of fact from a court.
Washington State (2026 Guidelines)
Date: 6/17/2026
Ref: RCW 26.19 Compliance
Net Deviation:
Based on RCW 26.19.075 and 2026 economic tables. Net income estimated using 2025 federal tax brackets and $15,000 standard deduction.
Disclaimer: Official Estimate Only
This estimate is based on the 2026 Washington State Child Support Schedule. This is not a legal document. Consult a family law attorney for advice.
Generated via WSCSS Calculator — Washington Child Support Software