Is a deceased parent's estate responsible for child support payments?

If there is an order for the payment of child support in place, the payor's death does not automatically terminate the order.  The estate of the deceased must petition the court to modify the order based on death of the deceased.  If the estate has significant enough assets the modification will be denied; if it does not have such assets the modification will be granted.

As to any outstanding child support arreas (unpaid child support) those amounts survive the death of the payor and can be collected against the estate or trust.