If you don’t pay your child support obligation, the amount that builds up is called an arrearage. If you fail to pay your arrearage, the court can come in and collect it by taking an additional 20 percent of your child support amount, when they do automatic withholding, to pay back that arrearage. If you still don’t pay off your arrearage, once you’re more than three months behind in your child support obligation, the court can actually commence a contempt proceeding and subject you to all sorts of civil penalties, including fines and jail time. The court additionally can punish you by taking your driver’s license away.