In general, the person with more than 50% of the physical custody time (overnights) with the children is the parent who receives child support. The other parent is the person who pays child support. The person responsible for paying child support can be either the higher or lower income party. In most cases, income only affects the amount of support paid, not who receives it. However, if the parties share custody equally (50/50), then the higher-earing spouse will pay child support.