Child Support Calculations for High Net Worth Parents

 Posted on June 26, 2025 in Child Support

When one or both parents of minor children have substantial wealth, child support can be much more complicated than cases involving more typical incomes. High net worth parents in Illinois must still provide financial support for their children, but standard guidelines may not apply in the same way. The court may deviate from its normal guidelines if they do not reflect the child’s actual needs or the family’s standard of living.

If you are a high-earning parent going through a divorce or child support proceeding in Kane County, understanding how child support is determined is essential. As of June 2025, Illinois still uses an "income shares" model for most families, but courts apply more discretion when income reaches the upper tier. An experienced St. Charles, IL child support lawyer can explain more about how this might apply to your family.

How Is Child Support Calculated for Wealthy Parents in Illinois?

Under ILCS 5/505, child support is calculated using both parents' incomes, parenting time (visitation), and the number of children. For high net worth families, this income shares model can break down when the paying parent’s income far exceeds what the child would reasonably require. Courts can adjust the calculation to ensure the child receives adequate support without creating an unfair windfall for the receiving parent.

Factors that influence child support calculations for high net worth families include:

• The actual needs of the child, including education, healthcare, extracurriculars, travel, and lifestyle

• The standard of living the child would have enjoyed if the parents stayed together

• The financial resources of both parents

• Any special needs or unique circumstances of the child

Judges may apply the guideline formula to a certain income level and then use discretion for any income above that threshold. For example, if one parent earns several million dollars per year, the court may find that a flat guideline percentage would result in support that exceeds what the child reasonably needs.

What Happens if the Parents Disagree About the Child's Needs?

Parents often argue about what should be covered under child support when one or both parents are high-income earners. For example, one parent may argue that private school, international travel, or luxury activities are unnecessary, while the other views them as standard based on the family’s prior lifestyle.

This is where expert financial testimony, detailed expense documentation, and legal advocacy become crucial. A Certified Financial Litigator can present evidence in support of a reasonable support amount that reflects your child’s best interests and your family’s means.

Can Child Support Be Modified as Income Changes?

If either parent’s income increases or decreases substantially, the court can change child support upon request. For high earners with fluctuating income from investments, bonuses, or business ownership, it is especially important to keep records and seek modifications when appropriate.

Call a St. Charles, IL Child Support Attorney for High Net Worth Families

High net worth child support cases demand careful legal and financial planning. At Weiler & Associates, Inc., our Kane County, IL child support lawyers include a Certified Financial Litigator who works with wealthy families to resolve complex support disputes. Call 630-331-9110 to schedule a consultation and protect your financial future and your child’s well-being.