How to calculate child support when there are 2 children and they each live with one parent?

Hi Since i don't know where the support order was entered (I'm assuming somewhere downstate NY), the best thing for your fiance to do is to go into Family Court in your county (it's the cheapest way to go and he can represent himself), file a petition for modification of a child support order of another court (if the support was established in Supreme Court) and seek a reduction in his child support based on the fact that one of the children lives with him.  If there's an agreement between the parties, typically one of the emancipation events is that a child goes to live with another parent.  Unfortunately most of the emancipation provisions are not self-executing so you actually have to go to FC and file a petition for a modification in child support based on new facts.  You can't simply stop paying.  I would bring the agreement and/or judgment of divorce and any prior orders of support to the petition clerk.  Get there early in the morning.   Because Mom lives in another state, the FC here will handle dealing with a KY court so you don't have to worry about getting her served. I hope it goes well.  It's not that difficult a process but annoying. Ilysa