Will a new job with comission affect child support?

My fiance recently got a new job, the salary he’s making is about the same as from his old job but he also gets commission and bonuses with this job but they don’t go on his paycheck stubs because they vary week to week. Will the bonuses and commissions affect how much he has to pay in child support or no? He currently pays what he did when he was working 2 full time jobs and we would have an extremely difficult time being able to pay anymore.

For his child support obligation to change, one party would have to file a motion to modify based on a change in circumstances. At that time, unless a motion to deviate is filed, the child support guidelines will be utilized to determine a new child support amount.