Child support modification that is agreed between the parties. (The actual amount doesn't have to be agreed upon because it is controlled via a state statute according to a formula.) Make sure that I receive the statutorily required 6 months paystubs and 2 years tax returns from both parties. I have a form for you to complete to see if you are eligible for any deductions. I pay the filing fee, file it with the court, and finalize the child support modification for you.