TaxCut can give you a detailed explanation of the calculations it makes for a particular tax form (what gets carried from where, and so on).
Click the Help button on the TaxCut main window.
Click on the book for Form Help (Explain This Form) in the table of contents pane.
For more information on the types of Help available, see Getting Tax Help, About Help Central, or click one of the books in the Help Central table of contents.
If you need help locating information, click the Search button.