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

Independent estimate: This is not an official court calculation, a certified court form, or legal advice. Courts may order more or less. A PDF can still be edited; this site does not certify authenticity or guarantee court acceptance.

Washington financial worksheet

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

State for this worksheet

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WashingtonLimited base calculation

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 combined monthly net income below $2,200, Washington bases the obligation on household resources and living expenses with a statutory minimum; this module does not invent that discretionary low-income result.
Healthcare, daycare, special child-rearing costs, tax/debt income derivation, self-support reserve, 45% limitation, deviations, split custody and shared residential schedules require the full Washington worksheet.

The available formula is a limited base calculation. Full parity with every line of the official worksheet, custody arrangement, tax computation, credit, and discretionary adjustment has not been verified. Review the stated limitations and the official sources.

Read the Washington guideline guide · Methodology and limitations · 50-state worksheet review