The average divorce in the U.S. costs between approximately that same as the average wedding: $30,000.00 (which is also the average price of a new car). Cases involving significant assets or custody battles can exceed $100,000.00 per side. Extreme cases can cost one million dollars or more. To the extent you and your spouse can sit down and agree to the terms of your divorce, you will save yourself time, money and aggravation.