Washington · STATE-SPECIFIC WORKFLOW

Washington support worksheet.

Enter both parties’ countable income and the adjustments relevant to this state. The Washington calculation uses the state’s income definition and the specific formula fields below.

Washington WSCSS worksheets and financial declaration. Washington RCW 26.19.071

How to use this result: The calculation follows the state’s published guideline for the figures you enter. The court or agency issues the final order and may apply deviations or facts not entered here. This is educational information, not an official court calculation or legal advice.

Washington financial worksheet

Complete Party A and Party B, then the state formula fields.

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WashingtonGuideline calculation available

Washington worksheet output

Income reconciliation, calculation, sources, and PDF.

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Complete both parties’ financial accounting to review your state-specific worksheet.

Amounts are calculated in your browser. No account or upload is required. PDF/print is the only report format.

Washington requirements and review scope

Washington WSCSS worksheets and financial declaration. Use Washington RCW 26.19.071 to determine the amounts counted for each party.
Wages, dividends, interest, business earnings, and other countable income are added separately for each party. Enter each dollar once; do not repeat business profit as an owner distribution.
General asset balances, loan balances, and household spending are not collected in this support-calculation workflow. Enter countable earnings from assets. A separate court financial affidavit may require additional disclosures.
Business and rental deductions must be expenses allowed for support, which can differ from tax-return deductions. Do not deduct personal living expenses as business expenses.
This worksheet needs state-permitted tax and other deductions. Enter the guideline tax deduction, not take-home pay or every deduction shown on a pay stub. Automatic tax preparation is not provided.
Uses RCW 26.19.020 Washington child support economic table effective January 1, 2026.
The economic table gives a monthly basic support obligation per child; this module multiplies the selected per-child amount by the number of children, then allocates the total between parents by each parent’s share of combined monthly net income under RCW 26.19.080.
The table is presumptive through combined monthly net income of $50,000; above that, the court may exceed the $50,000 amount only with written findings.
For ordinary low-income cases, RCW 26.19.065 supplies a $50-per-child minimum. The 2026 $2,394 self-support reserve and 45% net-income limit are applied; conflicting limits or requested exceptions require official review.
Healthcare, daycare, special child-rearing costs, tax/debt income derivation, other-household obligations, deviations, split custody and shared residential schedules require the full Washington worksheet.

This calculator applies the published state guideline formula and has been tested against the official schedule and published examples. When a case needs a worksheet line listed above, the calculator stops and identifies that line instead of estimating it. Compare your result with the official sources linked here.

Read the Washington guideline guide · How we test calculations · All 50 state guides