How are Free File Fillable Forms different from tax software?
Unlike most tax software, Fillable Forms is a simple electronic equivalent of paper forms. It provides basic field error checking, but no simplified questions that ask about or explain tax situations, error checking or other features included in most tax software applications. Fillable Forms does only mathematical calculations. It does not calculate taxes, look up taxes in the tax tables, or compute any other line item that might vary based on the information you enter on your form. On the 1040 tax form there are several lines, including tax, standard deductions and certain credits that will not calculate using “Do the Math.” You may need to enter amounts on these and other lines of the 1040 tax form, including standard deductions and certain credits, since these will not be calculated.
