What's the chance of getting my money back from over paying in child support? I'm in IL and my oldest turned 18 and graduated last year and I am still paying child support on him even though he's not going to college. The CS should have stopped last June. But my lawyer kept on saying that we are almost at an agreement and he wanted to do all the filing at one time. He says he can back date it and I will get my money back but I have a feeling that won't happen. I finally got him to submit the paperwork to stop the garnishment but it hasn't taken effect yet. Any chances of me actually getting any money back?