I already filed Federal 1040 and got my refund, but I need to file a 1040x now and pay some money back to them... do I have to file this by April 15th? Thanks.
IntlTax
Apr 7, 2008, 06:59 PM
No, you do not need to file Form 1040X by April 15th. But if you don't, the IRS may charge you interest for the amount you owe.