XAPP Application for Child Support Services. Complete this form to provide ORS with the information needed to open a child support services case.For other case types you can use the Child Support Calculator or the fill-in-the-blank forms in the forms section below. You may use this worksheet and instructions to MANUALLY CALCULATE the child support obligation using the table found in Utah Code 81-6-304. You can calculate your possible child support payment amount two ways: online, using our Child Support Calculator, or on paper, using worksheets. We don't care, for the purposes of setting support orders, whether the person is working "under the table" or reporting their taxes. The crime is tax evasion, a federal offense. Learn how child support is calculated in Utah, how support awards can be modified or terminated, and other legal information about UT child support. What proof do courts need to prove someone is working under the table to avoid child support payments in CT? Edit, sign, and share utah child support worksheet online.