Thank you. That's really all I was looking for was an unbiased opinion. My ex husband doesn't help at all with our kids insurance so I haven't dealt with this.If the specifics of the agreement were to be arranged between you, then I don't see any legal reason why you can't put the children on your insurance during your Open Enrollment and stop making the payment to her. Whether that would be a wise thing to do with regards to good co-parenting is not a call I'm willing to make.