Tax Assistant for Excel is a custom application written for Microsoft Excel and requires Microsoft Excel 97/2000/XP/2003/2007. It simplifies your Federal Income Tax preparation by providing Excel workbooks with IRS approved substitutes of Form 1040 with Schedules A, B, C, C-EZ, D, D-1, E, L, M, SE, Forms 6251 (AMT), 4952, 6781, and Form 1040A with Schedules B and L. There are also a number of worksheets related to deductions and Schedule D including the Social Security Benefits, Qualified Dividends and Capital Gain Tax, and Child Tax Credit worksheets.