To qualify for a child support modification in Colorado, a parent must demonstrate a significant and continuing change in circumstances since the original child support order was established. This change can include a substantial increase or decrease in income, changes in the financial needs of the child, or alterations in custody or parenting time arrangements. Generally, the change must result in a 10% or greater difference in the child support amount to qualify for a modification. Both parents must agree to the modification, or the requesting parent can file a motion with the court to request the change. Consulting with a family law attorney can help in navigating the legal requirements and procedures for modifying child support.