If you’re a parent in Washington State looking to understand your financial obligations, our Washington Child Support Calculator offers a quick, simple, and free way to estimate monthly support based on income, expenses, and the number of children. Built on 2025 state guidelines, it’s ideal for planning or negotiation.

Why Use a Washington Child Support Calculator?

Washington uses an Income Shares Model, meaning both parents’ incomes may factor into child support decisions. Our calculator estimates the non-custodial parent’s share for general planning purposes.

Key features:

  • Free & easy to use

  • Based on Washington’s 2025 guidelines

  • Works on all devices

  • No account required

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How to Use This Calculator

  1. Enter the paying parent’s monthly net income

  2. Choose the number of children being supported

  3. Include health insurance and other deductions

  4. Add support paid for other children

  5. Click Calculate Support to see an estimate

📌 This tool gives a rough estimate and doesn’t replace actual legal determinations made by Washington courts.

Washington Child Support

FAQs – Washington Child Support

Q: What model does Washington use for child support?
A: Washington uses the Income Shares Model, where both parents’ income and other expenses are considered.

Q: Does this calculator handle shared parenting?
A: This tool gives a general estimate. Parenting time or custody percentage can affect final orders in court.

Q: Is this calculator legally binding?
A: No. It provides an unofficial estimate and should not be used as legal advice.

Disclaimer: This Washington Child Support Calculator is provided for informational and planning purposes only. Always consult Washington courts or a legal professional for official calculations or orders.