Unfortunately, very few States support any any accounting at all of how child support money is spent. In most cases the money may be spent on whatever the custodial parent wants. You might be able to get a judge to order the custodial parent to provide an accounting of how the money is spent, but it will be an uphill battle.

If the custodial parent is ordered to provide an accounting, they may falsify the items and expenditure amounts, and it would be difficult to prove or disprove their claims without going to a great deal of trouble and expense. Check your State Statutes to see if your state is one of the few that has any provision regarding accounting for child support expenditures.