Hello, Anonymous.
Yes, generally it is possible to impute income from a non-custodial parent who is voluntarily earning less than his/her potential.
The Judge will look at factors such as the individual's employment history; income history; ability and opportunity to work/earn more; etc. Basically, the Judge will look at the totality of the circumstances, including any outstanding reasons as to why the income is less now than it was before, to determine if there may be any intentional underemployment. There may be valid reasons for the new hours, but it will all be fact-dependent, and ultimately it will, of course, be up to the Judge.
Cases like this can be somewhat tricky, so you may want to look into hiring a lawyer, or at least consulting with a local attorney to see how they may help you through the case.
I hope this helps.
Answered on Jun 23rd, 2015 at 4:08 PM