Your concern when adding or editing items in your cash plan spreadsheet is to provide accurate information so that You Need A Cash Plan can accurately populate and maintain your spreadsheet. But, keep in mind that the program is a planning tool, not an accounting program. Accuracy for planning, as described below, is not the same as accuracy for bookkeeping.
Income - accurate if you can, otherwise plan low, deposit high
Bills - accurate in the first spreadsheet column before paying bills – otherwise, plan high, pay low
Credit cards - accurate if you use the four-step method
Allowance, sinking funds, savings - accuracy is built in