What is in your decree now is what the court said are your rights. When you got divorced, was he making the same as he is now? The amount he is obligated to pay is a formula base on his income. He could owe you more! My decree has the "standard" custody arrangement and I am the custodial parent. We do not follow what is in the decree either and my husband and I share him pretty much 50/50 part of the time. However, my ex still owes me what the child support arrangement was in the degree. Although he pays for his food and shelter half the time, I am the one who buys most of his things and pays for all the extras like summer camp, school supplies, after school, soccer, etc. Please talk to a lawyer and find out your rights. You ex needs to pay child support until your child is an adult!