If either parent of the children for whom child support is being awarded is under an existing order to pay child support for other children, then enter on this line the amount of the other monthly child support obligation. Do not enter child support that a parent is paying to the other parent of these children.

For example, suppose Jane Doe and John Doe have a child together and Jane is awarded custody of the child. John was previously married to Mary and was ordered to pay her $200.00 per month child support for another child born to John and Mary. John can include $200.00 on this line to determine his child support obligation to Jane.

However, assume that the judge has also ordered that John pay Jane $300.00 per month child support for the child born of John and Jane. John may not also include that $300.00 on this line.