Washington Child Support Calculator

How WA Child Support is Calculated

Washington's child support formula is like splitting a bill for the kids. The court combines your and the other parent's monthly net incomes to find a total support amount from a state chart. Your final payment is your percentage share of that total amount.

Understanding Washington's Shared Custody Rules

In Washington, a significant adjustment, called a 'residential credit,' may apply when a child spends at least 91 overnights per year with the paying parent. This doesn't just reduce the payment based on time; instead, it triggers a different formula that accounts for costs in both households. A 50/50 schedule does not automatically eliminate the child support obligation.

WA Child Support FAQs

At what age does child support end in WA?

Child support in Washington typically ends when the child turns 18 or graduates from high school, whichever occurs later, but not beyond age 19. However, a court can order post-secondary support for college or vocational school.

How is child support calculated if one parent is unemployed in WA?

If a parent is voluntarily unemployed or underemployed, the court can 'impute' income based on their work history and earning potential. If unemployment is involuntary, support is typically calculated based on actual income, such as unemployment benefits or minimum wage for full-time work.

How do I modify a child support order in WA?

You can request to modify a child support order based on a 'substantial change in circumstances,' such as a significant income change for either parent. An order can be adjusted every two years, or sooner if the change would result in a new calculation that is at least 25% and $100 different per month.

Does WA child support cover college expenses?

Yes. Washington courts have the authority to order 'post-secondary support' for a child's college or vocational school expenses. The court considers the child's aptitude and the parents' financial resources to determine if and how much support is appropriate, potentially until age 23.

How does WA handle health insurance and childcare costs?

Health insurance premiums, daycare, and other necessary childcare costs are considered mandatory deductions and are handled in addition to the basic child support obligation. These expenses are typically allocated between the parents in proportion to their share of the combined monthly net income.