Can child support be "pre-paid"? My ex husband paid me more than the court ordered amount for approximately 3 years based on the fact that he was doing extremely financially well with his business. I have a special needs child and was only able to work part time (at that time, but I am now working full time) so had limited income. I also have 90% custody so the majority of the burden is on me. His business has now slowed down and he stopped paying child support all together. I filed a case with DCSS and in response he is claiming that he is due a credit of $47000 based on the fact of overpayment for years 2006-2008. That was never the agreement. There is nothing in writing either way. Does he have any case for a credit due him?