When can a child support order be modified? A child support order can be modified if there is a substantial and continuing change in circumstances that results in a 10% or more change in the underlying support obligation. Examples would be a change in income of either party, a change in work or education-related childcare costs, a change in health insurance premiums, and other things that might change the amount of child support that’s due, so we would look at those factors and put that into a child support worksheet and look at what the guideline amount is recommended to be. If you have questions about your child support order, please come in and see me. We can run some child support worksheets and figure out if your child support should be modified.