There can be many reasons that require a change to a child support assessment - a parent’s income may not be accurately reflected in the assessment, or the level of care recorded may be wrong, or there may be a special circumstance that is not taken into account in the formula. What can be done? The child support legislation has some inbuilt remedies, which allow an assessment to be changed to reflect the circumstances in the case. The remedies are administered by the Department of Human Services - Child Support. They allow the child support formula assessment to respond to unanticipated changes in the lives of the parents and children.