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Washington Child Support Calculations

In Washington state, both parents are responsible for supporting their child until the child turns 18 or graduates from high school, whichever occurs later. This obligation is formalized in a child support order, which specifies the amount of child support that the noncustodial parent (the obligor) must pay to the custodial parent (the obligee) to help cover the expenses of raising the child.

The amount of child support is calculated using the state’s child support schedule. This schedule outlines the basic support obligation based on the parents’ combined income and the number of children.

The child support schedule ensures fairness by determining how much each parent pays, proportionate to their income. The Department of Social and Health Services (DSHS), through the Division of Child Support (DCS), assists in enforcing and managing child support obligations to ensure compliance with the order.

Estimating Washington Child Support Payments

You can estimate monthly child support obligations using the state’s child support calculator. This table considers several factors, including the parents’ monthly income, the ages of the children, and the number of children involved.

The process begins with determining both parents’ gross income, followed by deductions to calculate their net income. This information is entered into a child support worksheet, which applies the state’s formula to calculate the support amount. This amount is presumed correct unless there are written findings showing it would be unjust.

The calculation covers the basic needs of the child but may also account for special needs. These include medical expenses or child care costs. The goal is to ensure that the monthly child support obligation is fair and sufficient to meet the child’s needs in alignment with Washington’s support guidelines.

Washington Child Support Calculations: Summary

Because the statutes that govern child support calculations are detailed and lengthy, it’s helpful to refer to a condensed version of the content. The chart below provides a helpful guide to Washington’s child support calculations.

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Washington Child Support Calculation Statutes

Washington Revised Code:

  • Section 26.19.020 (child support economic table)
  • Section 26.19.045 (veterans’ disability pensions)
  • Section 26.19.050 (worksheets and instructions)
  • Section 26.19.065 (standards for establishing upper and lower limits on child support amounts)
  • Section 26.19.071 (standards for determination of income)

How Washington Determines the Parents’ Combined Monthly Income

Gross income includes, but is not limited to, the following:

  • Salaries
  • Wages
  • Commissions
  • Dividends
  • Trust income
  • Severance Pay
  • Pensions
  • Unemployment compensation
  • Workers’ compensation
  • Social Security benefits
  • Disability benefits

Deductions include, but are not limited to, the following:

  • Federal and state income taxes
  • Federal Insurance Contributions Act deductions
  • Mandatory union dues
  • Mandatory pension plan payments

Calculations Using the Economic Table

The basic child support obligation from the economic table between the parents is based on each parent’s share of the combined monthly net income.

Parents can agree to pay more than the presumed amount, but can’t pay less. Courts may adjust the payments according to the best interests of the child and each parent’s needs.

Not Included in the Economic Table

Some expenses aren’t included in the economic table, but should be shared by the parents in the same proportion as the basic child support obligation.

Health care costs can include:

  • Medical
  • Dental
  • Orthodontics
  • Vision
  • Chiropractic
  • Mental health treatments
  • Prescription medications

Day care and special child-rearing expenses can include:

  • Tuition
  • Long-distance transportation costs to visit parents

Note: State laws are always subject to change through the passage of new legislation, rulings in the higher courts (including federal decisions), ballot initiatives, and other means. While we strive to provide the most current information available, please consult an attorney or conduct your own legal research to verify the Washington law(s) you are researching.

Washington Child Support Calculations: Related Resources

Contact a Washington Attorney About Child Support Calculations

Knowing how child support is calculated is significant because it impacts your child’s well-being. While helpful, a Washington child support calculator only gives a rough estimate of what may be owed. If you have concerns about child support calculations or other support issues, contact an experienced Washington family law attorney near you for legal advice.

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