RCW 26.19.071 · 2026 Estimates
Convert your gross income into the net monthly income used for Washington State child support. This tool uses projected 2026 tax brackets and mandatory state deductions.
Federal tax estimates use projected 2026 bracket estimates based on 2025 IRS data and standard inflation adjustments. Official 2026 IRS brackets will be confirmed by the IRS in late 2025.
Your estimated net monthly income: $0
Use in Child Support CalculatorWashington State child support is based on the monthly net income of both parents. This is not the "take-home pay" shown on your paystub, but a specific legal calculation defined in RCW 26.19.071.
Gross income includes all income from all sources, including wages, salaries, commissions, bonuses, overtime, dividends, and self-employment income.
Only specific deductions are allowed by law to reach your net income:
Once both parents' net incomes are determined, they are combined to find the basic support obligation from the state economic table. Each parent's share of that obligation is then proportional to their share of the combined net income.
Wages, salaries, bonuses, overtime, self-employment, rental income, investments, and most other sources under RCW 26.19.071(3).
Federal taxes, FICA, mandatory pension, union dues, WA PFML, WA LTC Trust premiums, and court-ordered maintenance under RCW 26.19.071(5).