Your income shouldn't matter...as far as your wife goes though they could simply impute income to her if she's not working and base child support on that amount. You would then obviously be the one paying the support as she has no income. Or she could get a job to pay it herself, don't know how much child care costs but that may be the best option or not depending. The court won't order she get a job and send your children to daycare, but they will order that she find a way to support the other child. Is it worth it to you for your wife to stay home with the other kids? Or would you rather not pay her child support obligation and have her working?