Past-Due Cash Medical Support

If you have been ordered to pay cash medical support and you fail to make a payment on time, the amount that was owed will become past-due cash medical support


Unless the past-due cash medical support is paid off, the next child support order you receive will show that you owe both the current cash medical support payments plus the past-due cash medical support payments. 


In Illinois, past-due cash medical support grows at an interest rate of 9% annually.