To apply online, you'll need to fill out a child support online application. Once you've applied for services, you can also go online to:The Massachusetts Supreme Judicial Court reworked alimony and child support with little regard for common practices in the Probate Court. Learn how to fill out a Financial Statement Form, which you need for many types of cases in Massachusetts Probate and Family Court. This online calculator will generate a court-ready, filled in Child Support Guidelines Worksheet. To fill out the Worksheet you need to have income and expense information for both parents. Use the other parent's Financial Statement if you have it. The support amount varies depending upon many factors, each situation is different. The Massachusetts SJC landmark decision in the Cavanagh v. Cavanagh case could fundamentally alter how child support and alimony is drawn in divorce cases.