This bill amends the Internal Revenue Code to: (1) direct the Internal Revenue Service to ensure that all procedures and questions used to determine eligibility for the earned income tax credit, the child tax credit, and the American Opportunity, Hope Scholarship, and Lifetime Learning tax credits are substantially the same regardless of the method used for preparing and filing a tax return; and (2) extend the due diligence requirement for determining eligibility for the earned income tax credit to tax return preparers who prepare returns claiming such other tax credits.