Child Support & Spousal Support in Washington – Ensuring Fair Financial Support

How Child Support Is Determined in WA

Washington uses statewide guidelines to calculate child support, factoring in both parents’ incomes, the number of children, and the parenting schedule. The state’s Income Shares Model ensures children receive a fair share of each parent’s resources. Washington will update its child support formula in 2026, and our attorneys at the Law Offices of Tresa A. Sadler PLLC stay ahead of these changes to advise families on whether modifications may be necessary.

Woman advising couple, pointing to documents on table with laptop and calculator.

Understanding Spousal Maintenance in Washington

Unlike child support, spousal maintenance isn’t automatic. Courts consider the length of the marriage, income disparity, lifestyle during the marriage, and earning capacity of each spouse. For high-income clients, spousal support can involve significant sums, making it critical to have skilled advocacy. Our firm balances compassion with strategic negotiation, protecting clients from unfair burdens while ensuring fair outcomes.


A Tailored Strategy for Each Support Case


Whether you’re seeking financial stability for your children or defending against unfair payment demands, we provide detail-oriented support. Our attorneys scrutinize financial affidavits, uncover hidden income, and argue for deviations when circumstances warrant. We have extensive experience in high-income cases where support tables may not fully apply, giving clients confidence that their unique financial situation is addressed.

Advocacy for Fair Outcomes


Our focus is on equity. We represent both parents seeking support and those who may be required to pay it. By combining legal insight with financial precision, the Law Offices of Tresa A. Sadler PLLC ensures agreements are accurate, enforceable, and sustainable.

Scales of justice icon. Black and white outline.

Adjusting to Life’s Changes


Support orders may need updating when circumstances change, such as job loss, income shifts, or evolving needs of children. With Washington’s 2026 changes to support formulas, it’s especially important to review existing orders proactively.

Enforcing Support Obligations


When a parent fails to comply with a child or spousal support order, we act quickly to enforce payments. Our team uses efficient legal remedies while minimizing conflict whenever possible.

  • How is child support calculated?

    Washington uses the Income Shares Model, based on parents’ incomes, number of children, and custody arrangements.

  • Will the 2026 law change increase my support?

    Possibly. Each case is unique, and the new formula may impact high-income or complex cases differently.

  • How long does spousal maintenance last?

    It depends. Shorter marriages may have little or no maintenance, while long marriages can result in longer-term or even indefinite support.

Common Questions About Child & Spousal Support