Can child support come from both of my jobs or just the job I had when support was initially set?

I just wrote a blog on this very topic at our law firm's web site. From a technical perspective, secondary income (second job/ part time job/ overtime) is income under Wisconsin DCF guidelines for purposes of support; whether such income will be included by the court is purely discretionary. When it comes to a part time job, it my depend  on how long you have worked at the job. If for a long period of time and your family has become dependent on that secondary stream of income, the more likely it will be included. If it is a brand new job, and you are doing it solely to help ends meet, and further, your family has not been dependent on it, the less likely the court may decide to include it.