To apply for Child Support services download, print, and complete the Child Support Application and mail, fax or walk into your local Child Support office. Complete a Guided Interview that Creates Forms for You.All the necessary forms will be created based on your answers to the questions in this guided interview. There are many forms you need to fill out to do this. You can find all the forms and the steps listed on the How to Get the Final Decree page. The process begins when you apply for child support services or when your local child support office receives a referral from another public assistance program. Learn how child support is calculated in Nevada, including income considerations, custody factors, and legal guidelines. Simplify the process today! You can call our State Collection and Disbursement Unit (SCaDU) to make a payment over the phone at 855-288-2352 and follow the prompts. See how parenting time affects the total.