The domiciliary parent is the parent with whom the kid spends the most of his or her time. The kid is frequently and indefinitely in the physical custody of the other parent. If your plan does not include a domiciliary parent, the kid will spend time with both parents. In some states, only one parent can be designated as the domiciliary parent. In addition to the physical location where the domicile parent lives being important, so too is the mental state of that person. It is possible for one parent to have legal custody of their child and still not be the "domestic" parent if they are not responsible for the daily emotional needs of the child. For example, one parent may have been awarded legal custody of their child but still see them on a weekly basis because they are required by court order to do so. This parent would not be able to claim domiciliary status since they are not responsible for the daily emotional needs of the child beyond what a court order requires them to provide. It is also possible for more than one parent to have legal custody of a child and yet not be responsible for the daily emotional needs of the child. For example, one parent might have been granted legal custody of their child but still see them on a weekly basis because they are required by court order to do so. However, if the other parent did not want to visit then no problem - the first parent could deny them access to the child.