Parents in Colorado are generally obligated to support their children until they reach the age of 19. However, in cases where the child has a physical or emotional disability, the obligation to provide support may continue beyond this age. The court has jurisdiction to order post-minority support for a disabled child if the child was unemancipated and remained dependent on her parents for support See, Koltay v. Koltay, 667 P.2d 1374 (Colo. 1983). This means that the child's attainment of the age of 19 only creates a presumption of emancipation, and the court can determine whether the child is still dependent on her parents for support.
So, if a child is not physically or mentally capable of self-support, the child is not emancipated, and the duty of parental support continues for the duration of the disability. Therefore, to terminate child support for a disabled child who is 25 years old, it may be necessary to demonstrate that the child is now capable of self-support, thereby establishing their emancipation.
If you are currently being ordered to pay child support, you will require a court order to modify the payments. Given the complexity of your case it's imperative that you speak with an attorney as soon as possible.