It is very common for factors that affect child support to change. As a result, the monthly child support amount may change as well. If you are the parent paying child support and these changes are in your favor, you should make sure to file a request to modify child support immediately.
All too often parents wait several years to file a request to modify, not knowing that they still have to pay the full amount from the prior order. For example, if the original child support order was based upon you monthly income of $5,000 but your current income is $2,000, you still have to pay at the higher rate until the child support order is modified.