Today is Tax Day and tax experts say unless you file electronically the deadline to mail that return is whenever your local post office closes.

Times vary depending on where you live.
Liberty Tax Service Manager Greg Carney says – in his experience – about 50-percent of folks who wait until today (April 15th) will end up filing extensions.
Carney says filing an extension will give you until October 15th to complete your return.
Carney says penalties for non-compliance are steep. He says the failure to file penalty is five percent per month which adds us quickly.
You can go to http://www.irs.gov/uac/Extension-of-Time-To-File-Your-Tax-Return and file form 4868, but that has to be submitted today as well.