Child Support by Income in Washington
This series shows a real scenario table, computed by the site’s own guideline engine, for states whose formula works from gross income. Washington is not one of them, and this page explains exactly why rather than leaving a broken link or a guessed number.
Reviewed by SupportDecode Editorial Team Page content reviewed Sources Methodology Update log
Why Washington is not in this series
Requires stipulated net income
Washington guideline support (RCW ch. 26.19) runs on combined monthly net income, after the specific deductions RCW 26.19.071(5) lists. The engine behind this site requires each parent’s net figure as a direct input; it has no built-in gross-to-net conversion for Washington, so a weekly gross paycheck cannot feed this page family without inventing a deduction calculation the statute leaves to the parties actual figures.
What to use instead
The full Washington child support calculator on this site runs the same real guideline engine and sources as every other state page. It asks for the net-income figures Washington's formula actually requires, rather than trying to derive them from a hypothetical weekly gross paycheck the way this series does for states with a gross-based formula.
Official sources
Official sources last verified: .
- RCW 26.19.020 (economic table: combined monthly NET income $2,200-$50,000, per-child amounts, as replaced by 2025 c 272 s 14)
Washington State Legislature (app.leg.wa.gov) Last checked
Reviewed by SupportDecode Editorial Team Page content reviewed Sources Methodology Update log