Through the tax filing deadline of April 18, 2011, the IRS has reported that there were almost 101 million e-filed returns, representing an 8.8% increase from last year. This makes nearly one billion tax returns that have been filed electronically since the e-file program went national in 1990.
Taxpayers who have not yet filed their 2010 returns can still e-file through October 17, 2011. However, taxpayers who want to file amended returns for any tax year must submit them by paper; e-filing cannot be used for amended returns.
Source: IR-2011-46, April 18, 2011
Deferred compensation plan set up by a state or local government, or tax-exempt organization, which allows tax-free deferrals of salary.