Tax Guide Late Taxes: a Day Late and a Dollar Short? Some of The Causes and Consequences of Late Taxes When the tax return due date has passed, it’s time to consider the consequences for those who haven’t managed (or ... Tax Guide Form 1040X: A Second Chance to Get Your Return Right IRS Form 1040X – the Amended U.S. Individual Income Tax Return PDFfiller focuses on one more form related to the individual tax return, Form 1040x, which lets you amend ...