Calculating Child Support Scenario The payer can make payments directly to MiSDU, or in some limited cases to the FOC. Sometimes income withholding is not possible because the payer is self-employed or for other reasons. In most cases, child support payments are automatically withheld from the payer’s wages and MiSDU forwards them to the payee. Usually each parent is ordered to pay a percentage of additional medical expenses based on income. These additional expenses are called uninsured healt...