The W-2 form is one of the most widely recognized ... each designated by a single or double-letter code. For example, "D" is referring to 401(k) contributions. Box 13: Income not federally taxed ...

Your employer, according to the IRS, is required to provide or send Form W-2, known as a "Wage and Tax Statement" to you no later than Jan. 31.

Employees may view their W-2 via the Oracle Self Service Applications responsibility. The online W-2 is an official statement that can be used for filing.

The IRS has recently flagged a particularly pernicious W-2 "tax hack" which encourages people to claim unearned credits and bigger tax refunds by lying about their income. Here's the breakdown of ...