Blog: Prepare Your Own Taxes! File Early The refund process slows down the later you file your taxes. It is a good idea to file as soon as you receive all of your forms in the mail. You may want to wait until the first week of February to file, because businesses are required to mail the forms by January thirtieth each year. If you miss the deadline, you still need to file an extension by April eleventh. The extension does have a fee attached to it, but you will save yourself a lot in penalties by filing the extension.
(taken from: about.com)
(taken from: about.com)