Tools to Estimate Income and Support Amounts Below are tools that you may find helpful when trying to estimate income and child support amounts. Each child support order is unique and only the court can order child support or modify a current child support order. Shared-Placement Cases Worksheet to estimate support Calculator to estimate support High-Income Payer Cases Worksheet to estimate support Calculator to estimate support Serial Family Cases Worksheet to estimate support Calculator to estimate support Split-Placement Cases Worksheet to estimate support Calculator to estimate support Combination of Split-Placement and Shared-Placement Cases Worksheet to estimate support Calculator to estimate support Low Income Cases Calculator to estimate support Tables to estimate child support amounts Percent Conversion Table Low-Income Payer Table